time current curves td012034en series c k-frame · 6 time current curves td012034en effective...
Post on 23-May-2020
15 Views
Preview:
TRANSCRIPT
Time Current Curves TD012034EN Effective September 2015
ContentsDescription Page
Catalog Number Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Digitrip 310+ Electronic Trip UnitTypes KD, CKD, HKD, CHKDLong Delay (LD) and Short Delay (SD) with Flat Response and Override (125A) (LSI, LSIG, ALSI, ALSIG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .TD012014EN . . . . . . . . .7Long Delay (LD) and Short Delay (SD) with Flat Response and Override (250A, 400A) (LSI, LSIG, ALSI, ALSIG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TD012007EN . . . . . . . . .8Long Delay Response and Short Delay with I2T Response Curve and Override (125A) (LS, LSG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .TD012015EN . . . . . . . .9Long Delay Response and Short Delay with I2T Response Curve and Override (250A, 400A) (LSI, LSIG, ALSI, ALSIG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TD012008EN . . . . . . .10
Types KDC (Current Limiting)Long Delay (LD) and Short Delay (SD) with Flat Response and Override(125A) (LSI, LSIG, ALSI, ALSIG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .TD012016EN . . . . . . . .11Long Delay (LD) and Short Delay (SD) with Flat Response and Override(240A, 400A) (LSI, LSIG, ALSI, ALSIG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .TD012012EN . . . . . . . .12Long Delay Response and Short Delay with I2T Response Curve and Override(125A) (LS, LSG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TD12017EN . . . . . . . .13Long Delay Response and Short Delay with I2T Response Curve and Override(250A, 400A) (LS, LSG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .TD012013EN . . . . . . . .14
Types KD, CKD, HKD, CHKD, and KDC (125A, 250A and 400A) Ground Fault Delay Response Curve (LSG, LSIG, ALSIG) . . . . . . . . . . . . . . . . . . . . . . . TD012009EN . . . . . . .15 Remote Maintenance Mode Setting (ALSI, ALSIG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .TD012010EN . . . . . . .16
KT Thermal/Magnetic Trip UnitTypes KDB, KD, HKD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SC-4118-87B . . . . . . .17Types KDC 2-, 3-, and 4-pole . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SC-4119-87B . . . . . . . .18
Let-through CurvesFDC, JDC, KDC, and LDC---240V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . AD-29-166A . . . . . . . .19FDC, JDC, KDC, and LDC---480V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . AD-29-166B . . . . . . . .20FDC, JDC, KDC, and LDC---600V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . AD-29-166C . . . . . . . .21
Series C K-Frame 70-400A, 240-600V
Contents (continued)Digitrip OPTIM 550/1050 Electronic Trip Unit for all K-Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page
Long Delay I2T and Short Delay I2T Repsonse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SC-6924-98 . . . . . . . .22Long Delay I2T and Short Delay Flat Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SC-6925-98 . . . . . . . .23Long Delay I4T and Short Delay Flat Repsonse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SC-6926-98 . . . . . . . .24Instantaneous and Override, 125A Trip Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SC-6927-98 . . . . . . . .25Instantaneous and Override, 250A Trip Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SC-6928-98 . . . . . . . .26Instantaneous and Override, 400A Trip Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SC-6929-98 . . . . . . . .27Ground Fault Trip or Ground Fault Alarm Only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SC-6930-98 . . . . . . . .28
Legacy Trip Unit Types
Earth Leakage Module Curves
UL Earth Leakage Curve ELFD, JD, and KD, three- and four-pole, 110-480V . . . . . . . . . . . TC01212005E . . . . . . .29IEC Earth Leakage Curve ELFD, JD, and KD, three- and four-pole, 110-480V . . . . . . . . . . TC01212006E . . . . . . .30
KES Digitrip RMS 310 Electronic Trip UnitTypes KDB, CKDB, HKDB, CHKDB, KD, CKD, HKD, CHKD Types KES3400LS, KES3400LSG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SC-5638-93 . . . . . . . .31 Types KES3400LSI, KES3400LSIG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SC-5639-93 . . . . . . . .32 Types KES3250LS, KES3250LSG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SC-5640-93 . . . . . . . .33 Types KES3250LSI, KES3250LSIG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SC-5641-93 . . . . . . . .34 Types KES3125LS, KES3125LSG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SC-5642-93 . . . . . . . .35 Types KES3125LSI, KES3125LSIG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SC-5643-93 . . . . . . . .36Type KDC Types KES3400LS, KES3400LSG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SC-5644-93 . . . . . . . .37 Types KES3400LSI, KES3400LSIG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SC-5645-93 . . . . . . . .38 Types KES3250LS, KES3250LSG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SC-5646-93 . . . . . . . .39 Types KES3250LSI, KES3250LSIG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SC-5647-93 . . . . . . . .40 Types KES3125LS, KES3125LSG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SC-5648-93 . . . . . . . .41 Types KES3125LSI, KES3125LSIG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SC-5649-93 . . . . . . . .42Types Ground Fault Protection Types KES3400LSG, KES3400LSIG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SC-5650-93 . . . . . . . .43 Types KES3250LSG, KES3250LSIG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SC-5651-93 . . . . . . . .44 Types KES3125LSG, KES3125LSIG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SC-5652-93 . . . . . . . .45
Type KS Electronic Trip Unit
Type KS (KS3400T, KS3400TG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SC-4156-87A . . . . . . . .46
Note:Time/Current characteristic curves for Series C K-frame circuit breakers--voltages shown in curve headingsare maximum at which the breaker may be applied . Interrupting capacity of individual breaker is tabulatedon each curve .
Note:The following curves are UL489 Listed for use in North America .The following circuit breakers are derived from Eaton, Westinghouse, or Cutler-Hammer history .
Time Current Curves are engineering reference documents for application and coordination purposes only . For field testing molded case circuit breakers, refer to NEMA AB 4 guidelines .
2 EATON www.eaton.com
Proof 9 — November 12, 2015 4:54 PM
Time Current Curves TD012034ENEffective September 2015
Series CK-Frame
3EATON www.eaton.com
otee:N Unless noted below, all curves remain unchanged from their prior revision .
Revision Curve Number Page Date
Time Current Curves TD012034ENEffective September 2015
Series CK-Frame
Instantaneous curves adjusted
to meet specifications.
ZSI times added to short delay curves.
7–14
7–14
9 - 2015
9 - 2015
4
Time Current Curves TD012034ENEffective September 2015
Series CK-Frame
EATON www.eaton.com
KES 3 400 LSIG ZG
Trip Unit Type
KES Number of Poles
34
= Three-pole= Four-pole
Ampere Rating
125250400
Feature
BlankB20B21ZG
= No feature= High load alarm= Ground fault alarm and trip= Zone selective interlocking
Trip Unit
LSLSILSGLSGB22LSIGLSIGB22ALSIALSIGALSIGB22
= 310+ Electronic LS= 310+ Electronic LSI= 310+ Electronic LSG= LS(A), GFA, no trip= 310+ Electronic LSIG= LSI(A), GFA, no trip= LSI with Maintenance Mode= LSIG with Maintenance Mode= ALSI(A) with Maintenance Mode and GFA, no trip
2
22
2
2
2
2
Table 2 . 125/250/400A 310+ Electronic Trip Unit
KD 3 400 F
Number of Poles
34
= Three-pole= Four-pole
Performance at 480 Vac
KDHKDKDCCKDCHKD
Frame Designation
Ampere Rating
400
= 35 kAIC= 65 kAIC= 100 kAIC= 35 kAIC 100% rated= 65 kAIC 100% rated
Table 1 . 400A Frame Only
Catalog Number Selection
This information is presented only as an aid to understanding catalog numbers .It is not to be used to build catalog numbers for circuit breakers or trip units .
K-Frame with 310+ Electronic Trip Unit Technology
KDB 3 400 F T36 ZG W
Performance at 480 Vac
KDBHKDB
= 35 kAIC= 65 kAIC
Number of Poles
3 = Three-pole Ampere Rating
125250400
Frame DesignationFeature
BlankB20B21ZG
= No feature= High load alarm= Ground fault alarm and trip= Zone selective interlocking
Terminal
W = No terminals
Trip Unit
T33T32T35T35B22T36T36B22T38TT3939B22
= 310+ Electronic LS= 310+ Electronic LSI= 310+ Electronic LSG= 310+ Electronic LS(A), GFA, no trip= 310+ Electronic LSIG= 310+ Electronic LSI(A), GFA, no trip= 310+ Electronic ALSI with Maintenance Mode= 310+ Electronic ALSIG with Maintenance Mode= 310+ Electronic ALSI(A) with Maintenance Mode and GFA, no trip
Table 3 . 125/ 250/400A K-Frame 310+ Factory Assembled Breaker 2
Notes
1 Only one B2x feature can be used
2 Not available in four-pole configurations .
5
Time Current Curves TD012034ENEffective September 2015
Series CK-Frame
EATON www.eaton.com
KD 3 400 F
Number of Poles
234
= Two-pole= Three-pole= Four-pole
Circuit Breaker/Frame Type
DKKDKDBHKDKDC
Suffix
Circuit Breaker/Frame Ampere
Rating
100125150175200225250300350400
CE
FKVWXYBlank
= Cooper terminals= 50% protected neutral pole (four-pole electronic trip unit circuit breaker only)= Frame only= High-magnetic molded-case switch= 500 calibration (thermal-magnetic trip units only)= Without terminals= Load terminals only= Line side terminals only= Standard load and line side terminals
K-Frame with Thermal-Magnetic Trip Unit Technology
Table 4 . Thermal-Magnetic Breaker/Frame
KT 3 400 T
Number of Poles
234
= Two-pole= Three-pole= Four-pole
Trip Unit Type
KT
Suffix
Circuit Breaker/Frame Ampere
Rating
100125150175200225250300350400
T = Trip unit only= Thermal-magnetic
Table 5 . Thermal-Magnetic Trip Unit
KD 3 125 T5 7 W
Circuit Breaker/Frame Type
KDHKDKDCCKDCHKD
Number of Poles
3 = Three-pole Circuit Breaker/FrameAmpere Rating
125250400
Trip ModelTrip Type
= LSI= LSIG= LSIA
Suffix
W = No terminals= Model 550= Model 1050
T5T10
267
K-Frame with OPTIM 550/1050 Trip Unit Technology
Table 6 . OPTIM 550/1050 Circuit Breaker/Frame
6
Time Current Curves TD012034ENEffective September 2015
Series CK-Frame
EATON www.eaton.com
E
GF
HA
B
DC
IR∑6
87
102
3
54
12 Ii
Isd (xIR)SHORT
12
2015
242
4
107
tR (s)LONG
REMOTE MMSTATUSPush to Trip
68C 4081 H10
120
300Inst.tsd (ms)SHORT
TEST / ALARM
Clear
WindowClear
WindowE
GF
HA
B
DC
IR∑6
87
102
3
54
12 Ii
Isd (xIR)SHORT
12
2015
242
4
107
tR (s)LONG
REMOTE MMSTATUSPush to Trip
68C 4081 H12
Ig (xIn)GND
.8 1.0
.2.3
.6.4
TEST / ALARM
N
PO
QJ
K
ML
Rsd */ t tg (ms)
SHORT / GND
Clear
WindowClear
Window
E
GF
HA
B
DC
IR∑6
87
102
3
54
12 Ii
Isd (xIR)SHORT
12
2015
242
4
107
tR (s)LONG
TEST / ALARMSTATUSPush to Trip
68C 4081 H13
Clear
WindowClear
Window
E
GF
HA
B
DC
IR∑6
87
102
3
54
12 Ii
Isd (xIR)SHORT
12
2015
242
4
107
tR (s)LONG
STATUSPush to Trip
68C 4081 H14
120
300Inst.tsd (ms)SHORT
TEST / ALARM
Clear
WindowClear
Window E
GF
HA
B
DC
IR∑6
87
102
3
54
12
Isd (xIR)SHORT
12
2015
242
4
107
tR (s)LONG
STATUSPush to Trip
68C 4081 H24
Ig (xIn)GND
.8 1.0
.2.3
.6.4
TEST / ALARM
N
PO
QJ
K
ML
Rsd */ t tg (ms)
SHORT / GND
Clear
WindowClear
Window
E
GF
HA
B
DC
IR∑6
87
102
3
54
12
Isd (xIR)SHORT
12
2015
242
4
107
tR (s)LONG
STATUSPush to Trip
68C 4081 H23
120
300Inst.tg (ms)
GND
Ig (xIn)GND
.8 1.0
.2.3
.6.4
TEST / ALARM
Clear
WindowClear
Window
LS
LSI
ALSI (With Maintenance Mode)
LSG
LSIG
ALSIG (With Maintenance Mode)
Figure 1 . Digitrip 310+ Namplates
➅
➄
➆
➀
➃
➇ ➂ ➁
Figure 2 . Front View of L-Frame Type OPTIM Trip Unit (K and N-Frame Designs are Similar)
1 Push-to-Trip Button
2 Mode of Trip/Alarm LEDs
3 Battery Test Pushbutton/LED
4 Automatic Trip Indicator Reset Pushbutton
5 Unit Status LED
6 INCOM Transmit LED (Model 550 requires field IMPACC kit)
7 Battery Compartment/Pro-gramming Port Access Cover
8 Rating Plug
7
Time Current Curves TD012034ENEffective September 2015
Series CK-Frame
EATON www.eaton.com
10,0
00
.1
.2
.3
.4
.5
.01
1000
5000
4000
3000
2000
20,0
00
.001
TIM
E IN
SEC
ON
DS
Current in Amps
30,0
00
40,0
0050
,000
100,
000
1
.02
.03
.04
.05Fixed InstantaneousOverride
InterruptingRatingDeterminesEnd ofCurve
.01
1
2
3
4
5
6789
10
20
30
40
50
60708090
100
1000900800700600
500
400
300
200
2000
3000
4000
5000
6000700080009000
10000
.02
.03
.04
.05
.06
.07
.08.09
.1
.2
.3
.4
.5
.6.7.8.91
3
4
5
6789
10
20
30
40
50
60708090
100
1000900800700600
500
400
300
200
2000
3000
4000
5000
6000700080009000
10000
ETU
NIM 1
SR
UO
H 2S
DN
OCES
NI EMI T
RU
OH 1
Maximum Total Clearing Time
Available Long Delay Time:2, 4, 7, 10, 12, 15, 20, 24 sec.
Shown at 6 x IR2, 4, 7, 15, 24
seconds +0/–30%
7
2
Available Short DelayPick Up Settings
2–8, 10, 12 x IR ±5% (See Note 7)
2
Current in Multiples of (Ir)
Current in Multiples of (Ir)
1 2 3 4 5 7 10 20 03 05 04 70 7. 5.
1 2 3 4 5 7 10 03 02 .5 .7
8
12
Minimum TotalClearing Time
4
.4
.15
.24
63
1.15
7
.
5
.
300 ms(P, Q, R)
120 ms(M, N, O)
Inst.(J, K, L)
10
1
Digitrip 310+ Circuit Breaker Time/Current Curves (Phase Current)
Series C K-Frame Circuit Breakers (125A)
Catalog Types: KD, CKD, HKD, CHKD, KDB, CKDB, HKDB, CHKDB
Trip Unit Types: 32 (LSI), 36 (LSIG), 38 (ALSI), 39 (ALSIG)
Long Delay and Short Delay with Flat Response
Notes:
1 . Curve accuracy applies from –20°C to +55°C ambient . For possible continuous ampere derating for ambient above 40°C, refer to Eaton . Temperatures above +88°C cause an over-temperature protection trip .
2 . Application frequency is 50/60 Hertz .
3 . There is a memory effect that can act to shorten the long delay . The memory effect comes into play if a current above the long delay pickup value exists for a time and then is cleared by the tripping of a downstream device or the circuit breaker itself . A subsequent overload will cause the circuit breaker to trip in shorter time than normal . The amount of time reduction is inverse to the amount of time that has elapsed since the previous overload . Approximately five minutes is required between overloads to completely reset the memory .
4 . The right portion of the curve is determined by the interrupting rating of the circuit breaker .
5 . The left portion of the curve is shown as a multiple of the Long Delay Setting . (Long Delay Pickup = 115% of Ir) . Range is 110%–120% .
6 . Total clearing times shown include the response times of the trip unit, the breaker opening, and the interruption of the current .
7 . The Short Delay Pick Up has 9 settings/positions, 2–8 and 10, 12 IR .
8 . For high fault current levels, an additional fixed instantaneous hardware override is provided at 3000A (Tolerance ±15%) .
9 . Maximum clearing time when using zone selective interlocking is 62ms .
(Ir) / (In) 125A
ABCDE F G H
55A60A70A80A90A100A110A125A
Figure 3 . Digitrip 310+ Trip Units (125A), Long Delay and Short Delay with Flat Response and Override (LSI, LSIG, ALSI, ALSIG) – Curve Number TD012014EN, September 2015
UL/CSA rms Sym . kA, 50/60 Hz
KD, CKD, KDB, CKDB 65 35 25HKD, CHKD, HKDB, CHKDB 100 65 35
240V 480V 600VBreaker Type
IEC 60947-2 rms Sym . kA, 50/60 Hz
KD, CKD, KDB, CKDB 65 40 40HKD, CHKD, HKDB, CHKDB 100 65 65
240V 380V 415VBreaker Type
Available Sensors
Rated Amperes
Interrupting Rating
Ir = Continuous Current Setting or Rating Plug Value, Is = Current Sensor Frame Rating, In = Rating Plug Value, Ig = Ground Current Pickup Multiplier, Ii = Instantaneous Override Pickup .
Fixed InstantaneousOverride 4400A
InterruptingRatingDeterminesEnd ofCurve
10,0
00
.1
.01
1000
5000
4000
3000
2000
20,0
00
.001
TIM
E IN
SE
CO
ND
S
Current in Amps
30,0
00
40,0
00
50,0
00
100,
000
1
.02
.03
.04
.05
.2
.3
.4
.5
.01
1
2
3
4
5
6789
10
20
30
40
50
60708090
100
1000900800700600
500
400
300
200
2000
3000
4000
5000
6000700080009000
10000
.02
.03
.04
.05
.06
.07
.08.09
.1
.2
.3
.4
.5
.6.7.8.91
3
4
5
6789
10
20
30
40
50
60708090
100
1000900800700600
500
400
300
200
2000
3000
4000
5000
6000700080009000
10000
ETU
NIM 1
SR
UO
H 2S
DN
OC
ES
NI E
MI TR
UO
H 1
Maximum Total Clearing Time
Available Long Delay Time:2, 4, 7, 10, 12, 15, 20, 24 sec.
Shown at 6 x IR2, 4, 7, 15, 24
seconds +0/–30%
7
2
Available Short DelayPick Up Settings
2–8, 10, 12 x IR ±5% (See Note 7)
2
Current in Multiples of (Ir)
Current in Multiples of (Ir)
1 2 3 4 5 7 10 03 02 05 04 70 7. 5.
1 2 3 4 5 7 10 03 02 .5 .7
8
12
Minimum TotalClearing Time
4
.4
.15
.24
63
1.15
7
.
5
.
300 ms(P, Q, R)
120 ms(M, N, O)
Inst.(J, K, L)
10
1
8
Time Current Curves TD012034ENEffective September 2015
Series CK-Frame
EATON www.eaton.com
Digitrip 310+ Circuit Breaker Time/Current Curves (Phase Current)
Series C K-Frame Circuit Breakers (250A and 400A)
Catalog Types: KD, CKD, HKD, CHKD, KDB, CKDB, HKDB, CHKDB
Trip Unit Types: 32 (LSI), 36 (LSIG), 38 (ALSI), 39 (ALSIG)
Long Delay and Short Delay with Flat Response
Notes:
1 . Curve accuracy applies from –20°C to +55°C ambient . For possible continuous ampere derating for ambient above 40°C, refer to Eaton . Temperatures above +88°C cause an over-temperature protection trip .
2 . Application frequency is 50/60 Hertz .
3 . There is a memory effect that can act to shorten the long delay . The memory effect comes into play if a current above the long delay pickup value exists for a time and then is cleared by the tripping of a downstream device or the circuit breaker itself . A subsequent overload will cause the circuit breaker to trip in shorter time than normal . The amount of time reduction is inverse to the amount of time that has elapsed since the previous overload . Approximately five minutes is required between overloads to completely reset the memory .
4 . The right portion of the curve is determined by the interrupting rating of the circuit breaker .
5 . The left portion of the curve is shown as a multiple of the Long Delay Setting . (Long Delay Pickup = 115% of Ir) . Range is 110%–120% .
6 . Total clearing times shown include the response times of the trip unit, the breaker opening, and the interruption of the current .
7 . The Short Delay Pick Up has 9 settings/positions, 2–8 and 10, 12 IR .
8 . For high fault current levels, an additional fixed instantaneous hardware override is provided at 4400A (Tolerance ±15%) . For IR = In = 400A, the fixed instantaneous hardware override takes precedence over the SDPU setting of 12 x IR .
9 . Maximum clearing time when using zone selective interlocking is 62ms .
(Ir) / (In) 250A 400A
ABCDE F G H
100A 160A125A 200A150A 225A160A 250A175A 300A200A 315A225A 350A250A 400A
UL/CSA rms Sym . kA, 50/60 Hz
KD, CKD, KDB, CKDB 65 35 25HKD, CHKD, HKDB, CHKDB 100 65 35
240V 480V 600VBreaker Type
IEC 60947-2 rms Sym . kA, 50/60 Hz
KD, CKD, KDB, CKDB 65 40 40HKD, CHKD, HKDB, CHKDB 100 65 65
240V 380V 415VBreaker Type
Figure 4 . Digitrip 310+ Trip Units (250A and 400A), Long Delay and Short Delay with Flat Response and Override (LSI, LSIG, ALSI, ALSIG) - Curve Number TD012007EN, September 2015
Interrupting Rating
Available Sensors
Rated Amperes
Ir = Continuous Current Setting or Rating Plug Value, Is = Current Sensor Frame Rating, In = Rating Plug Value, Ig = Ground Current Pickup Multiplier, Ii = Instantaneous Override Pickup .
Fixed InstantaneousOverride 4400A
InterruptingRatingDeterminesEnd ofCurve
10,0
00
.1
.01
1000
5000
4000
3000
2000
20,0
00
.001
TIM
E IN
SE
CO
ND
S
Current in Amps
30,0
00
40,0
00
50,0
00
100,
000
1
.02
.03
.04
.05
.2
.3
.4
.5
.01
1
2
3
4
5
6789
10
20
30
40
50
60708090
100
1000900800700600
500
400
300
200
2000
3000
4000
5000
6000700080009000
10000
.02
.03
.04
.05
.06
.07
.08.09
.1
.2
.3
.4
.5
.6.7.8.91
3
4
5
6789
10
20
30
40
50
60708090
100
1000900800700600
500
400
300
200
2000
3000
4000
5000
6000700080009000
10000
ETU
NIM 1
SR
UO
H 2S
DN
OC
ES
NI E
MI TR
UO
H 1
Maximum Total Clearing Time
Available Long Delay Time:2, 4, 7, 10, 12, 15, 20, 24 sec.
Shown at 6 x IR2, 4, 7, 15, 24
seconds +0/–30%
7
2
Available Short DelayPick Up Settings
2–8, 10, 12 x IR ±5% (See Note 7)
2
Current in Multiples of (Ir)
Current in Multiples of (Ir)
1 2 3 4 5 7 10 03 02 05 04 70 7. 5.
1 2 3 4 5 7 10 03 02 .5 .7
8
12
Minimum TotalClearing Time
4
.4
.15
.24
63
1.15
7
.
5
.
300 ms(P, Q, R)
120 ms(M, N, O)
Inst.(J, K, L)
10
1
9
Time Current Curves TD012034ENEffective September 2015
Series CK-Frame
EATON www.eaton.com
.01
1
2
3
4
5
6789
10
20
30
40
50
60708090
100
1000900800700600
500
400
300
200
2000
3000
4000
5000
6000700080009000
10000
.02
.03
.04
.05
.06
.07
.08.09
.1
.2
.3
.4
.5
.6.7.8.91
3
4
5
6789
10
20
30
40
50
60708090
100
1000900800700600
500
400
300
200
2000
3000
4000
5000
6000700080009000
10000
ETU
NIM 1
SR
UO
H 2S
DN
OC
ES
NI E
MI TR
UO
H 1
Maximum Total Clearing Time
Available Long Delay Time:2, 4, 7, 10, 12, 15, 20, 24 sec.
Shown at 6 x IR 2, 4, 7, 15, 24
Seconds +0/–30%
7
2
Available Short DelayPickup Settings
2–8, 10, 12 x IR ±5% (See Note 7)
2
Current in Multiples of (Ir)
Current in Multiples of (Ir)
1 2 3 4 5 7 10 20 07 05 04 03 7. 5.
1 2 3 4 5 7 10 03 02 .5 .7
8 12
I2T Short Delay (See Note 8)
Minimum TotalClearing Time
10
7
5
4
.
.4
.
.15
.24
6
.
3
1.15
See Note 9
67 ms
10,0
00
.1
.01
1000
5000
4000
3000
2000
20,0
00
.001
TIM
E IN
SE
CO
ND
S
Current in Amps
30,0
00
40,0
00
50,0
00
100,
000
.02
.03
.04
.05
InterruptingRatingDeterminesEnd ofCurve
Fixed InstantaneousOverride
Digitrip 310+ Circuit Breaker Time/Current Curves (Phase Current)
Series C K-Frame Circuit Breakers (125A)
Catalog Types: KD, CKD, HKD, CHKD, KDB, CKDB, HKDB, CHKDB
Trip Unit Types: 33 (LS), 35 (LSG)
Long Delay and Short Delay with I2T Response
Notes:
1 . Curve accuracy applies from –20°C to +55°C ambient . For possible continuous ampere derating for ambient above 40°C, refer to Eaton . Temperatures above +88°C cause an over-temperature protection trip .
2 . Application frequency is 50/60 Hertz .
3 . There is a memory effect that can act to shorten the long delay . The memory effect comes into play if a current above the long delay pickup value exists for a time and then is cleared by the tripping of a downstream device or the circuit breaker itself . A subsequent overload will cause the circuit breaker to trip in shorter time than normal . The amount of time reduction is inverse to the amount of time that has elapsed since the previous overload . Approximately five minutes is required between overloads to completely reset the memory .
4 . The right portion of the curve is determined by the interrupting rating of the circuit breaker .
5 . The left portion of the curve is shown as a multiple of the Long Delay Setting . (Long Delay Pickup = 115% of Ir) . Range is 110%–120% .
6 . Total clearing times shown include the response times of the trip unit, the breaker opening, and the interruption of the current .
7 . The Short Delay Pick Up has 9 settings/positions, 2–8 and 10, 12 IR .
8 . Short Delay I2T band has a tolerance of ±15% .
9 . Breakpoint back to FLAT response occurs at 8x IR for upper line of the I2T curve .
10 . For high fault current levels, an additional fixed instantaneous hardware override is provided at 3000A (Tolerance ±15%) .
11 . Maximum clearing time when using zone selective interlocking is 62ms .
UL/CSA rms Sym . kA, 50/60 Hz
KD, CKD, KDB, CKDB 65 35 25HKD, CHKD, HKDB, CHKDB 100 65 35
240V 480V 600VBreaker Type
IEC 60947-2 rms Sym . kA, 50/60 Hz
KD, CKD, KDB, CKDB 65 40 40HKD, CHKD, HKDB, CHKDB 100 65 65
240V 380V 415VBreaker Type
(Ir) / (In) 125A
ABCDE F G H
55A60A70A80A90A100A110A125A
Figure 5 . Digitrip 310+ Trip Units (125A), Long Delay Response and Short Delay with I2T Response Curve and Override (LS, LSG) - TD012015EN, September 2015
Available Sensors
Rated Amperes
Interrupting Rating
Ir = Continuous Current Setting or Rating Plug Value, Is = Current Sensor Frame Rating, In = Rating Plug Value, Ig = Ground Current Pickup Multiplier, Ii = Instantaneous Override Pickup .
10
Time Current Curves TD012034ENEffective September 2015
Series CK-Frame
EATON www.eaton.com
.01
1
2
3
4
5
6789
10
20
30
40
50
60708090
100
1000900800700600
500
400
300
200
2000
3000
4000
5000
6000700080009000
10000
.02
.03
.04
.05
.06
.07
.08.09
.1
.2
.3
.4
.5
.6.7.8.91
3
4
5
6789
10
20
30
40
50
60708090
100
1000900800700600
500
400
300
200
2000
3000
4000
5000
6000700080009000
10000
ETU
NIM 1
SR
UO
H 2S
DN
OC
ES
NI E
MI TR
UO
H 1
Maximum Total Clearing Time
Available Long Delay Time:2, 4, 7, 10, 12, 15, 20, 24 sec.
Shown at 6 x IR 2, 4, 7, 15, 24
Seconds +0/–30%
7
2
Available Short DelayPickup Settings
2–8, 10, 12 x IR ±5% (See Note 7)
2
Current in Multiples of (Ir)
Current in Multiples of (Ir)
1 2 3 4 5 7 10 20 07 05 04 03 7. 5.
1 2 3 4 5 7 10 03 02 .5 .7
8 12
I2T Short Delay (See Note 8)
Minimum TotalClearing Time
10
7
5
4
.
.4
.
.15
.24
6
.
3
1.15
See Note 9
67 ms
10,0
00
.1
.01
1000
5000
4000
3000
2000
20,0
00
.001
TIM
E IN
SE
CO
ND
S
Current in Amps
30,0
00
40,0
00
50,0
00
100,
000
.02
.03
.04
.05
gInterruptingRatingDeterminesEnd ofCurve
Fixed InstantaneousOverride
Digitrip 310+ Circuit Breaker Time/Current Curves (Phase Current)
Series C K-Frame Circuit Breakers (250A and 400A)
Catalog Types: KD, CKD, HKD, CHKD, KDB, CKDB, HKDB, CHKDB
Trip Unit Types: 33 (LS), 35 (LSG)
Long Delay and Short Delay with I2T Response
Notes:
1 . Curve accuracy applies from –20°C to +55°C ambient . For possible continuous ampere derating for ambient above 40°C, refer to Eaton . Temperatures above +88°C cause an over-temperature protection trip .
2 . Application frequency is 50/60 Hertz .
3 . There is a memory effect that can act to shorten the long delay . The memory effect comes into play if a current above the long delay pickup value exists for a time and then is cleared by the tripping of a downstream device or the circuit breaker itself . A subsequent overload will cause the circuit breaker to trip in shorter time than normal . The amount of time reduction is inverse to the amount of time that has elapsed since the previous overload . Approximately five minutes is required between overloads to completely reset the memory .
4 . The right portion of the curve is determined by the interrupting rating of the circuit breaker .
5 . The left portion of the curve is shown as a multiple of the Long Delay Setting . (Long Delay Pickup = 115% of Ir) . Range is 110%–120% .
6 . Total clearing times shown include the response times of the trip unit, the breaker opening, and the interruption of the current .
7 . The Short Delay Pick Up has 9 settings/positions, 2–8 and 10, 12 IR .
8 . Short Delay I2T band has a tolerance of ±15% .
9 . Breakpoint back to FLAT response occurs at 8x IR for upper line of the I2T curve .
10 . For high fault current levels, an additional fixed instantaneous hardware override is provided at 4400A (Tolerance ±15%) . For IR = In = 400A, the fixed instantaneous hardware override takes precedence over the SDPU setting of 12 x IR .
11 . Maximum clearing time when using zone selective interlocking is 62ms .
UL/CSA rms Sym . kA, 50/60 Hz
KD, CKD, KDB, CKDB 65 35 25HKD, CHKD, HKDB, CHKDB 100 65 35
240V 480V 600VBreaker Type
IEC 60947-2 rms Sym . kA, 50/60 Hz
KD, CKD, KDB, CKDB 65 40 40HKD, CHKD, HKDB, CHKDB 100 65 65
240V 380V 415VBreaker Type
(Ir) / (In) 250A 400A
ABCDE F G H
100A 160A125A 200A150A 225A160A 250A175A 300A200A 315A225A 350A250A 400A
Figure 6 . Digitrip 310+ Trip Units (250A and 400A), Long Delay Response and Short Delay with I2T Response Curve and Override (LS, LSG) – Curve Number TD012008EN, September 2015
Interrupting Rating
Available Sensors
Rated Amperes
Ir = Continuous Current Setting or Rating Plug Value, Is = Current Sensor Frame Rating, In = Rating Plug Value, Ig = Ground Current Pickup Multiplier, Ii = Instantaneous Override Pickup .
11
Time Current Curves TD012034ENEffective September 2015
Series CK-Frame
EATON www.eaton.com
.02
.03
.04
.05
10,0
00
.1
.01
5000
4000
3000
2000
20,0
00
.001
TIM
E IN
SE
CO
ND
S
Current in Amps
30,0
00
40,0
0050
,000
100,
000
1
200,
000
Fixed InstantaneousOverride
InterruptingRatingDeterminesEnd ofCurve
600 Vac
480 Vac
240 Vac
MaximumInterruptingTime
.01
1
2
3
4
5
6789
10
20
30
40
50
60708090
100
1000900800700600
500
400
300
200
2000
3000
4000
5000
6000700080009000
10000
.02
.03
.04
.05
.06
.07
.08.09
.1
.2
.3
.4
.5
.6.7.8.91
3
4
5
6789
10
20
30
40
50
60708090
100
1000900800700600
500
400
300
200
2000
3000
4000
5000
6000700080009000
10000
ETU
NIM 1
SR
UO
H 2S
DN
OC
ES
NI E
MI TR
UO
H 1
Maximum Total Clearing Time
Available Long Delay Time:2, 4, 7, 10, 12, 15, 20, 24 sec.
Shown at 6 x IR2, 4, 7, 15, 24
seconds +0/–30%
7
2
Available Short DelayPick Up Settings
2–8, 10, 12 x IR ±5% (See Note 7)
2
Current in Multiples of (Ir)
Current in Multiples of (Ir)
1 2 3 4 5 7 10 20 03 05 04 70 7. 5.
1 2 3 4 5 7 10 03 02 .5 .7
8
12
Minimum TotalClearing Time
4
.4
.15
.24
63
1.15
7
.
5
.
300 ms(P, Q, R)
120 ms(M, N, O)
Inst.(J, K, L)
10
Digitrip 310+ Circuit Breaker Time/Current Curves (Phase Current)
Series C K-Frame Circuit Breakers (125A)
Catalog Types: KDC (Current Limiting)
Trip Unit Types: 32 (LSI), 36 (LSIG), 38 (ALSI), 39 (ALSIG)
Long Delay and Short Delay with Flat Response
Notes:
1 . Curve accuracy applies from –20°C to +55°C ambient . For possible continuous ampere derating for ambient above 40°C, refer to Eaton . Temperatures above +88°C cause an over-temperature protection trip .
2 . Application frequency is 50/60 Hertz .
3 . There is a memory effect that can act to shorten the long delay . The memory effect comes into play if a current above the long delay pickup value exists for a time and then is cleared by the tripping of a downstream device or the circuit breaker itself . A subsequent overload will cause the circuit breaker to trip in shorter time than normal . The amount of time reduction is inverse to the amount of time that has elapsed since the previous overload . Approximately five minutes is required between overloads to completely reset the memory .
4 . The right portion of the curve is determined by the interrupting rating of the circuit breaker .
5 . The left portion of the curve is shown as a multiple of the Long Delay Setting . (Long Delay Pickup = 115% of Ir) . Range is 110%–120% .
6 . Total clearing times shown include the response times of the trip unit, the breaker opening, and the interruption of the current .
7 . The Short Delay Pick Up has 9 settings/positions, 2–8 and 10, 12 IR .
8 . For high fault current levels, an additional fixed instantaneous hardware override is provided at 3000A (Tolerance ±15%) .
9 . Maximum clearing time when using zone selective interlocking is 62ms .
(Ir) / (In) 125A
ABCDE F G H
55A60A70A80A90A100A110A125A
Figure 3 . Digitrip 310+ Trip Units (125A), Long Delay and Short Delay with Flat Response and Override (LSI, LSIG, ALSI, ALSIG) – Curve Number TD012016EN, September 2015
UL/CSA rms Sym . kA, 50/60 Hz
KDC 200 100 65
240V 480V 600VBreaker Type
IEC 60947-2 rms Sym . kA, 50/60 Hz
KDC 200 100 50
240V 380V 415VBreaker Type
Available Sensors
Rated Amperes
Interrupting Rating
Ir = Continuous Current Setting or Rating Plug Value, Is = Current Sensor Frame Rating, In = Rating Plug Value, Ig = Ground Current Pickup Multiplier, Ii = Instantaneous Override Pickup .
12
Time Current Curves TD012034ENEffective September 2015
Series CK-Frame
EATON www.eaton.com
Series CK-Frame
.02
.03
.04
.05
10,0
00
.1
.01
5000
4000
3000
2000
20,0
00
.001
TIM
E IN
SE
CO
ND
S
Current in Amps
30,0
00
40,0
0050
,000
100,
000
1
200,
000
Fixed InstantaneousOverride
InterruptingRatingDeterminesEnd ofCurve
600 Vac
480 Vac
240 Vac
MaximumInterruptingTime
.01
1
2
3
4
5
6789
10
20
30
40
50
60708090
100
1000900800700600
500
400
300
200
2000
3000
4000
5000
6000700080009000
10000
.02
.03
.04
.05
.06
.07
.08.09
.1
.2
.3
.4
.5
.6.7.8.91
3
4
5
6789
10
20
30
40
50
60708090
100
1000900800700600
500
400
300
200
2000
3000
4000
5000
6000700080009000
10000
ETU
NIM 1
SR
UO
H 2S
DN
OC
ES
NI E
MI TR
UO
H 1
Maximum Total Clearing Time
Available Long Delay Time:2, 4, 7, 10, 12, 15, 20, 24 sec.
Shown at 6 x IR2, 4, 7, 15, 24
seconds +0/–30%
7
2
Available Short DelayPick Up Settings
2–8, 10, 12 x IR ±5% (See Note 7)
2
Current in Multiples of (Ir)
Current in Multiples of (Ir)
1 2 3 4 5 7 10 20 03 05 04 70 7. 5.
1 2 3 4 5 7 10 03 02 .5 .7
8
12
Minimum TotalClearing Time
4
.4
.15
.24
63
1.15
7
.
5
.
300 ms(P, Q, R)
120 ms(M, N, O)
Inst.(J, K, L)
10
Digitrip 310+ Circuit Breaker Time/Current Curves (Phase Current)
Series C K-Frame Circuit Breakers (250A and 400A)
Catalog Types: KDC (Current Limiting)
Trip Unit Types: 32 (LSI), 36 (LSIG), 38 (ALSI), 39 (ALSIG)
Long Delay and Short Delay with Flat Response
Notes:
1 . Curve accuracy applies from –20°C to +55°C ambient . For possible continuous ampere derating for ambient above 40°C, refer to Eaton . Temperatures above +88°C cause an over-temperature protection trip .
2 . Application frequency is 50/60 Hertz .
3 . There is a memory effect that can act to shorten the long delay . The memory effect comes into play if a current above the long delay pickup value exists for a time and then is cleared by the tripping of a downstream device or the circuit breaker itself . A subsequent overload will cause the circuit breaker to trip in shorter time than normal . The amount of time reduction is inverse to the amount of time that has elapsed since the previous overload . Approximately five minutes is required between overloads to completely reset the memory .
4 . The right portion of the curve is determined by the interrupting rating of the circuit breaker .
5 . The left portion of the curve is shown as a multiple of the Long Delay Setting . (Long Delay Pickup = 115% of Ir) . Range is 110%–120% .
6 . Total clearing times shown include the response times of the trip unit, the breaker opening, and the interruption of the current .
7 . The Short Delay Pick Up has 9 settings/positions, 2–8 and 10, 12 IR .
8 . For high fault current levels, an additional fixed instantaneous hardware override is provided at 4400A (Tolerance ±15%) . For IR = In = 400A, the fixed instantaneous hardware override takes precedence over the SDPU setting of 12 x IR .
9 . Maximum clearing time when using zone selective interlocking is 62ms .
(Ir) / (In) 250A 400A
ABCDE F G H
100A 160A125A 200A150A 225A160A 250A175A 300A200A 315A225A 350A250A 400A
UL/CSA rms Sym . kA, 50/60 Hz
KDC 200 100 65
240V 480V 600VBreaker Type
IEC 60947-2 rms Sym . kA, 50/60 Hz
KDC 200 100 50
240V 380V 415VBreaker Type
Figure 4 . Digitrip 310+ Trip Units (250A and 400A), Long Delay and Short Delay with Flat Response and Override (LSI, LSIG, ALSI, ALSIG) - Curve Number TD012012EN, September 2015
Interrupting Rating
Available Sensors
Rated Amperes
Ir = Continuous Current Setting or Rating Plug Value, Is = Current Sensor Frame Rating, In = Rating Plug Value, Ig = Ground Current Pickup Multiplier, Ii = Instantaneous Override Pickup .
13
Time Current Curves TD012034ENEffective September 2015
Series CK-Frame
EATON www.eaton.com
.01
1
2
3
4
5
6789
10
20
30
40
50
60708090
100
1000900800700600
500
400
300
200
2000
3000
4000
5000
6000700080009000
10000
.02
.03
.04
.05
.06
.07
.08.09
.1
.2
.3
.4
.5
.6.7.8.91
3
4
5
6789
10
20
30
40
50
60708090
100
1000900800700600
500
400
300
200
2000
3000
4000
5000
6000700080009000
10000
ETU
NIM 1
SR
UO
H 2S
DN
OC
ES
NI E
MI TR
UO
H 1
Maximum Total Clearing Time
Available Long Delay Time:2, 4, 7, 10, 12, 15, 20, 24 sec.
Shown at 6 x IR 2, 4, 7, 15, 24
Seconds +0/–30%
7
2
Available Short DelayPickup Settings
2–8, 10, 12 x IR ±5% (See Note 7)
2
Current in Multiples of (Ir)
Current in Multiples of (Ir)
1 2 3 4 5 7 10 20 07 05 04 03 7. 5.
1 2 3 4 5 7 10 03 02 .5 .7
8 12
I2T Short Delay (See Note 8)
Minimum TotalClearing Time
10
7
5
4
.
.4
.
.15
.24
6
.
3
1.15
See Note 9
67 ms
Fixed InstantaneousOverride Interrupting
RatingDeterminesEnd ofCurve
10,0
00
.1
.01
5000
4000
3000
2000
20,0
00
CURRENT IN AMPS
30,0
00
40,0
00
50,0
00
100,
000
200,
000
600 Vac
480 Vac
240 Vac
.02
.03
.04
.05
SECO
NDS
.001
Digitrip 310+ Circuit Breaker Time/Current Curves (Phase Current)
Series C K-Frame Circuit Breakers (125A)
Catalog Types: KDC (Current Limiting)
Trip Unit Types: 33 (LS), 35 (LSG)
Long Delay and Short Delay with I2T Response
Notes:
1 . Curve accuracy applies from –20°C to +55°C ambient . For possible continuous ampere derating for ambient above 40°C, refer to Eaton . Temperatures above +88°C cause an over-temperature protection trip .
2 . Application frequency is 50/60 Hertz .
3 . There is a memory effect that can act to shorten the long delay . The memory effect comes into play if a current above the long delay pickup value exists for a time and then is cleared by the tripping of a downstream device or the circuit breaker itself . A subsequent overload will cause the circuit breaker to trip in shorter time than normal . The amount of time reduction is inverse to the amount of time that has elapsed since the previous overload . Approximately five minutes is required between overloads to completely reset the memory .
4 . The right portion of the curve is determined by the interrupting rating of the circuit breaker .
5 . The left portion of the curve is shown as a multiple of the Long Delay Setting . (Long Delay Pickup = 115% of Ir) . Range is 110%–120% .
6 . Total clearing times shown include the response times of the trip unit, the breaker opening, and the interruption of the current .
7 . The Short Delay Pick Up has 9 settings/positions, 2–8 and 10, 12 IR .
8 . Short Delay I2T band has a tolerance of ±15% .
9 . Breakpoint back to FLAT response occurs at 8x IR for upper line of the I2T curve .
10 . For high fault current levels, an additional fixed instantaneous hardware override is provided at 3000A (Tolerance ±15%) .
11 . Maximum clearing time when using zone selective interlocking is 62ms .
UL/CSA rms Sym . kA, 50/60 Hz
KDC 200 100 65
240V 480V 600VBreaker Type
IEC 60947-2 rms Sym . kA, 50/60 Hz
KDC 200 100 50
240V 380V 415VBreaker Type
(Ir) / (In) 125A
ABCDE F G H
55A60A70A80A90A100A110A125A
Figure 5 . Digitrip 310+ Trip Units (125A), Long Delay Response and Short Delay with I2T Response Curve and Override (LS, LSG) - TD012017EN, September 2015
Available Sensors
Rated Amperes
Interrupting Rating
Ir = Continuous Current Setting or Rating Plug Value, Is = Current Sensor Frame Rating, In = Rating Plug Value, Ig = Ground Current Pickup Multiplier, Ii = Instantaneous Override Pickup .
14
Time Current Curves TD012034ENEffective September 2015
Series CK-Frame
EATON www.eaton.com
.01
1
2
3
4
5
6789
10
20
30
40
50
60708090
100
1000900800700600
500
400
300
200
2000
3000
4000
5000
6000700080009000
10000
.02
.03
.04
.05
.06
.07
.08.09
.1
.2
.3
.4
.5
.6.7.8.91
3
4
5
6789
10
20
30
40
50
60708090
100
1000900800700600
500
400
300
200
2000
3000
4000
5000
6000700080009000
10000
ETU
NIM 1
SR
UO
H 2S
DN
OC
ES
NI E
MI TR
UO
H 1
Maximum Total Clearing Time
Available Long Delay Time:2, 4, 7, 10, 12, 15, 20, 24 sec.
Shown at 6 x IR 2, 4, 7, 15, 24
Seconds +0/–30%
7
2
Available Short DelayPickup Settings
2–8, 10, 12 x IR ±5% (See Note 7)
2
Current in Multiples of (Ir)
Current in Multiples of (Ir)
1 2 3 4 5 7 10 07 05 04 03 02 7. 5.
1 2 3 4 5 7 10 03 02 .5 .7
8 12
I2T Short Delay (See Note 8)
Minimum TotalClearing Time
10
7
5
4
.
.4
.
.15
.24
6
.
3
1.15
See Note 9
67 ms
InterruptingRatingDeterminesEnd ofCurve
.02
.03
.04
.05
TIM
E IN
SEC
ON
DS
Fixed InstantaneousOverride 4400A
MaximumInterruptingTime
600 Vac
480 Vac
240 Vac
10,0
00
.1
.01
5000
4000
3000
2000
20,0
00
.001
Current in Amps
30,0
00
40,0
00
50,0
00
100,
000
200,
000
Digitrip 310+ Circuit Breaker Time/Current Curves (Phase Current)
Series C K-Frame Circuit Breakers (250A and 400A)
Catalog Types: KDC (Current Limiting)
Trip Unit Types: 33 (LS), 35 (LSG)
Long Delay and Short Delay with I2T Response
Notes:
1 . Curve accuracy applies from –20°C to +55°C ambient . For possible continuous ampere derating for ambient above 40°C, refer to Eaton . Temperatures above +88°C cause an over-temperature protection trip .
2 . Application frequency is 50/60 Hertz .
3 . There is a memory effect that can act to shorten the long delay . The memory effect comes into play if a current above the long delay pickup value exists for a time and then is cleared by the tripping of a downstream device or the circuit breaker itself . A subsequent overload will cause the circuit breaker to trip in shorter time than normal . The amount of time reduction is inverse to the amount of time that has elapsed since the previous overload . Approximately five minutes is required between overloads to completely reset the memory .
4 . The right portion of the curve is determined by the interrupting rating of the circuit breaker .
5 . The left portion of the curve is shown as a multiple of the Long Delay Setting . (Long Delay Pickup = 115% of Ir) . Range is 110%–120% .
6 . Total clearing times shown include the response times of the trip unit, the breaker opening, and the interruption of the current .
7 . The Short Delay Pick Up has 9 settings/positions, 2–8 and 10, 12 IR .
8 . Short Delay I2T band has a tolerance of ±15% .
9 . Breakpoint back to FLAT response occurs at 8x IR for upper line of the I2T curve .
10 . For high fault current levels, an additional fixed instantaneous hardware override is provided at 4400A (Tolerance ±15%) . For IR = In = 400A, the fixed instantaneous hardware override takes precedence over the SDPU setting of 12 x IR .
11 . Maximum clearing time when using zone selective interlocking is 62ms .
UL/CSA rms Sym . kA, 50/60 Hz
KDC 200 100 65
240V 480V 600VBreaker Type
IEC 60947-2 rms Sym . kA, 50/60 Hz
KDC 200 100 50
240V 380V 415VBreaker Type
(Ir) / (In) 250A 400A
ABCDE F G H
100A 160A125A 200A150A 225A160A 250A175A 300A200A 315A225A 350A250A 400A
Figure 6 . Digitrip 310+ Trip Units (250A and 400A), Long Delay Response and Short Delay with I2T Response Curve and Override (LS, LSG) – Curve Number TD012013EN, September 2015
Interrupting Rating
Available Sensors
Rated Amperes
Ir = Continuous Current Setting or Rating Plug Value, Is = Current Sensor Frame Rating, In = Rating Plug Value, Ig = Ground Current Pickup Multiplier, Ii = Instantaneous Override Pickup .
15
Time Current Curves TD012034ENEffective September 2015
Series CK-Frame
EATON www.eaton.com
.01
2
3
4
5
6
8
10
20
30
40
50
60708090
100
1000900800700
600
500
400
300
200
.02
.03
.04
.05
.06
.07
.08
.09.1
.2
.3
.4
.5
.6
.7
.8
.91
7
9
2000
3000
4000
5000
6000
700080009000
10000
1 M
INU
TES
DN
OC
ES
NI E
MIT
Ground Current in Multiples of (In)
.1 0.1 7. 5. 4. 3.2. 2.0
.1 4. 3.2. .5 .7 1.0 2.0
Ground Fault Pickup Settings (Ig)(Tolerance 10%)
.4X
.3X
.2X 1X.6X
.8X
Inst.(J, M, P)
120 ms(K, N, Q)
300 ms(L, O, R)
In 400A
160A200A225A250A300A315A350A400A
250A
100A125A150A160A175A200A225A250A
ABCDEFGH
125A
55A60A70A80A90A100A110A125A
IR∑
Ii
I (xIR)tR (s)
REMOTE MMSTATUSPush to Trip
68C 4081
Ig (xIn)GND
TEST / ALARM
*t t (ms)
Clear
Window
Clear
Window
IR∑
Ii
I (xIR)tR (s)
STATUS
68C 4081
Ig (xIn)GND
TEST / ALARM
*t t (ms)
Clear
Window
Clear
Window
Digitrip 310+ Circuit Breaker Time/Current Curves (Ground Current)
Series C K-Frame Circuit Breakers (125A, 250A and 400A)
Catalog Types: KD, CKD, HKD, CHKD, KDB, CKDB, HKDB, CHKDB, and KDC
Trip Unit Types: 35 (LSG), 36 (LSIG), and 39 (ALSIG)
Ground fault delay response notes:
1 . Curve accuracy applies from –20°C to +55°C ambient . For possible continuous ampere derating for ambient above 40°C, refer to Eaton . Temperatures above +88°C cause an over-temperature protection trip .
2 . Application frequency is 50/60 Hertz .
3 . Trip units are suitable for functional field testing with test kit CAT # MTST230V .
4 . For testing information, please contact Eaton .
Ig (x In) 125A 250A 400A
.2x
.3x
.4x
.6x
.8x1.0x
25 50 8038 75 12050 100 16075 150 240100 200 320125 250 400
E
GF
HA
B
DC
IR∑6
87
102
3
54
12
Isd (xIR)SHORT
12
2015
242
4
107
tR (s)LONG
STATUSPush to Trip
68C 4081 H23
120
300Inst.tg (ms)
GND
Ig (xIn)GND
.8 1.0
.2.3
.6.4
TEST / ALARM
Clear
WindowClear
Window
LSG
E
GF
HA
B
DC
IR∑6
87
102
3
54
12
Isd (xIR)SHORT
12
2015
242
4
107
tR (s)LONG
STATUSPush to Trip
68C 4081 H24
Ig (xIn)GND
.8 1.0
.2.3
.6.4
TEST / ALARM
N
PO
QJ
K
ML
Rsd */ t tg (ms)
SHORT / GND
Clear
WindowClear
Window
LSIG
E
GF
HA
B
DC
IR∑6
87
102
3
54
12 Ii
Isd (xIR)SHORT
12
2015
242
4
107
tR (s)LONG
REMOTE MMSTATUSPush to Trip
68C 4081 H12
Ig (xIn)GND
.8 1.0
.2.3
.6.4
TEST / ALARM
N
PO
QJ
K
ML
Rsd */ t tg (ms)
SHORT / GND
Clear
WindowClear
Window
ALSIG (With Maintenance Mode)
Note: Refer to table below for variations.
Figure 7 . Ground Fault Delay Response Curve (LSG, LSIG, ALSIG) - Curve Number TD012009EN
tg (ms)
tsd(ms)
120 K N Q
300 L O R
* Inst. J M P
Inst.120300
Settings
Ir = Continuous Current Setting or Rating Plug Value, Is = Current Sensor Frame Rating, In = Rating Plug Value, Ig = Ground Current Pickup Multiplier, Ii = Instantaneous Override Pickup .
16
Time Current Curves TD012034ENEffective September 2015
Series CK-Frame
EATON www.eaton.com
Current in Multiples of Rating ( )In
.01
2
.02
.03
.04
.05
.06
.07
.08
.09.1
.2
.3
.4
.5
.6
.7
.8
.91
3
4
5
6789
10
1 2 3 4.5 .6 .7 .8 .9 10 20 30 40 505 6 7 8 9
2.5
Maintenance Mode Trip
TIM
EIN
SE
CO
ND
S
Applicationdeterminesend of curve
Notes:
1. The Maintenance Mode feature must be ENABLED via application of 24 Vdc for these curves to apply. The blue LED is lit when in Maintenance Mode.
2. The end of the curve is determined by the interrupting rating of the circuit breaker.
3. Total clearing times shown include the response times of the trip unit, the breaker opening, and the interruption of the current.
4. Nominal Va lues (Pickup) (Tolerance is ±15%) 2.5 x In.
5. The total clearing times shown are conservative and consider the maximum response time of the trip unit, the circuit breaker opening, and the interruption of the current in the worst case conditions such as: maximum rated voltages, single-phaseinterruption, and minimum power factor. Faster clearing times are possibledepending on the specific system conditions.
Contact Eaton for additional information.
Digitrip 310+ Circuit Breaker Time/Current Curves
Maintenance Mode Setting
Series C K-Frame Trip Unit Nameplates
E
GF
HA
B
DC
IR∑6
87
102
3
54
12 Ii
Isd (xIR)SHORT
12
2015
242
4
107
tR (s)LONG
REMOTE MMSTATUSPush to Trip
68C 4081 H10
120
300Inst.tsd (ms)SHORT
TEST / ALARM
Clear
WindowClear
Window
ALSI (With Maintenance Mode)
E
GF
HA
B
DC
IR∑6
87
102
3
54
12 Ii
Isd (xIR)SHORT
12
2015
242
4
107
tR (s)LONG
REMOTE MMSTATUSPush to Trip
68C 4081 H12
Ig (xIn)GND
.8 1.0
.2.3
.6.4
TEST / ALARM
N
PO
QJ
K
ML
Rsd */ t tg (ms)
SHORT / GND
Clear
WindowClear
Window
ALSIG (With Maintenance Mode)
Figure 8 . Maintenance Mode Setting (ALSI, ALSIG) - Curve Number TD012010EN, February 2014
Left Side of Breaker
YellowBlack
Blue
Red
24 Vdc
Relay Wiring
NOC
Ir = Continuous Current Setting or Rating Plug Value, Is = Current Sensor Frame Rating, In = Rating Plug Value, Ig = Ground Current Pickup Multiplier, Ii = Instantaneous Override Pickup .
17
Time Current Curves TD012034ENEffective September 2015
Series CK-Frame
EATON www.eaton.com
0.001
0.010
0.100
1.000
10.000
100.000
1000.000
10,000.000
10 100 1000 10,000 100,000 1,000,000
Tim
e in
Sec
onds
Current in Percent of Breaker Trip Unit Rating (In)
Maximum Minimum
Maximum Single-Pole Trip Times at 25°C
Interruption Rating Determines End of Curve
+30%
/ –2
0%
+30%
/ –2
0%
Maximum Minimum
Adjustable Magnetic Trip, 5x - 10x
10 100 1000
Current in Percent of Breaker Trip Unit Rating (In)
Figure 9 . Thermal-Magnetic Series C Types KDB, KD, HKD Circuit Breakers - Curve Number SC-4118-87B, February 2014
Thermal-Magnetic Circuit Breaker Time/Current Curves
Series C K-Frame Circuit Breakers (250A and 400A)
Catalog Types: KDB, KD, HKD, DK
For application and coordination purposes only . Based on cold start at rated ambient temperature . Connected with four (4) feet of rated wire (60/75°C) per terminal with all poles wired in series . Tested in open air .
UL/CSA rms Sym . kA, 50/60 Hz
KDB 65 35 25 10KD 65 35 25 10HKD 100 65 35 22DK 65 - - 10
240V 480V 600V 250VdcBreaker Type
100-400
Instantaneous Trip Amperes
Breaker Rating
Rated Amperes (In)
Settings are 500 to 1000% of trip unit rating. For DC, instantaneous trip may be 42% higher.
TypicalTrip UnitNameplate
Individual PoleAdjustments
ThermalMagneticTrip Unit
C Push to Trip
MagneticMultiples Of In
10
7.5
10 5
7.5
10 5
Amps(In)
Cat.No.40°C
7.5
5
18
Time Current Curves TD012034ENEffective September 2015
Series CK-Frame
EATON www.eaton.com
0.001
0.010
0.100
1.000
10.000
100.000
1000.000
10000.000
10 100 1000 10000 100000 1000000
Tim
e in
Sec
onds
Current in Percent of Breaker Trip Unit Rating (In)
Maximum Minimum
Maximum Single Pole Trip Times at 25°C
Adjustable magnetic trip
interruption rating determines end of curve 600V AC
480V AC
240V AC
+30
%-2
0%
+30
%-2
0%
Maximum Minimum
Current in Percent of Breaker Trip Unit Rating (In)
10 100 1000Thermal-Magnetic Circuit Breaker Time/Current Curves
Series C K-Frame Circuit Breakers
Catalog Types: KDC Current Limiting Circuit Breakers, 2-, 3- and 4-Pole
For application and coordination purposes only . Based on 40°C ambient, cold starConnected with four (4) feet of rated wire (60°C up to 125 amps . 75°C above 125 amps) per terminal . Tested in open air with current in all poles . Instantaneous calibration based on single-pole tests .
Maximum Voltage: 600 Vac (60 Hz) – 250 Vdc
UL/CSA rms Sym . kA, 50/60 Hz
KDC 200 100 65 22
240V 480V 600V 250VdcBreaker Type
100-400
Instantaneous Trip Amperes
Breaker Rating
Rated Amperes (In)
500 to 1000% of trip unit rating (See Figure Below)(Dc values are approximately 40% higher)
Single-pole test data at 25°C based on NEMA Procedures (AB 4) for verifying performance of molded-case circuit breakers .
Note: For additional information on the trip unit, see IL 29C603 .
Figure 10 . Thermal-Magnetic Series C Type KDC Circuit Breakers - Curve Number SC-4119-87B, February 2014
19
Time Current Curves TD012034ENEffective September 2015
Series CK-Frame
EATON www.eaton.com
Ava
ilab
le S
ho
rt C
ircu
it C
urr
ent,
kA
rm
s
Peak Let-Through I2t, A2 sec
LD
C36
00
KD
C34
00
JDC
3250
FD
C32
25
1000 kA
500 kA
100 kA
50 kA
10 kA
5 kA
10,0
00,0
00
5,00
0,00
0
1,00
0,00
0
500,
000
100,
000
10,0
00
1 kA
Ava
ilab
le S
ho
rt C
ircu
it C
urr
ent,
kA
rm
s
Peak Let-Through Current, kA
LD
C36
00
KD
C34
00
JDC
3250
FD
C32
25
50 k
A
5 kA
10 k
A
100
kA
100 kA
500 kA
1000 kA
5 kA
50 kA
10 kA
1 kA
avai
l. Ip
for
1st
sym
m. 1
/2 c
ycle
1 kA
Figure 11 . Peak Let-Through I2t Curve — 240 V - Curve Number AD-29-166A
Figure 12 . Peak Let-Through Current Curve — 240 V - Curve Number AD-29-166A
Ava
ilab
le S
ho
rt C
ircu
it C
urr
ent,
kA
rm
s
Peak Let-Through I2t, A2 sec
LD
C36
00
KD
C34
00
JDC
3250
FD
C32
25
1000 kA
500 kA
100 kA
50 kA
10 kA
5 kA
1 kA
10,0
00,0
00
5,00
0,00
0
1,00
0,00
0
500,
000
100,
000
Ava
ilab
le S
ho
rt C
ircu
it C
urr
ent,
kA
rm
s
Peak Let-Through Current, kA
LD
C36
00
KD
C34
00
JDC
3250
FD
C32
25
1000 kA
500 kA
100 kA
50 kA
10 kA
5 kA
1 kA
avai
l. Ip
for
1st
sym
m. 1
/2 c
ycle
50 k
A
5 kA
10 k
A
100
kA
1 kA
20
Time Current Curves TD012034ENEffective September 2015
Series CK-Frame
EATON www.eaton.com
Figure 13 . Peak Let-Through I2t Curve — 480 V - Curve Number AD-29-166B
Figure 14 . Peak Let-Through Current — 480 V - Curve Number AD-29-166B
Ava
ilab
le S
ho
rt C
ircu
it C
urr
ent,
kA
rm
s
Peak Let-Through I2t, A2 sec
LD
C36
00
KD
C34
00
JDC
3250
FD
C31
50
100 kA
50 kA
10 kA
5 kA
1 kA
10,0
00,0
00
5,00
0,00
0
1,00
0,00
0
500,
000
100,
000
Ava
ilab
le S
ho
rt C
ircu
it C
urr
ent,
kA
rm
s
Peak Let-Through Current, kA
LD
C36
00
KD
C34
00
JDC
3250
FD
C31
50
avai
l. Ip
for
1st
sym
m. 1
/2 c
ycle
100 kA
50 kA
10 kA
5 kA
1 kA
50 k
A
5 kA
10 k
A
100
kA
1 kA
21
Time Current Curves TD012034ENEffective September 2015
Series CK-Frame
EATON www.eaton.com
Figure 15 . Peak Let-Through I2t — 600 V - Curve Number AD-29-166C
Figure 16 . Peak Let-Through Current — 600 V - Curve Number AD-29-166C
.01 .01
10,000
5,000
3,000
2,000
1,000
500
300
200
100
50
30
20
10
5
3
2
1 11
.5 5.5.
.3 3.3.
.2 2.2.
.1 1.1.
.05 .05
.03 .03
.02 .02
ET
UNI
M 1
RU
OH
1S
RU
OH
2S
DN
OC
ES
NIE
MIT
SD
NO
CE
SNI
EMI
T
500
600
700
800
9002 3 20 304 5 6 7 40 50 60 70 80 90 100
300
100.8
0.9 1
0.5
0.6
0.7 8 9
20 30 40 50 60 70 80 900.5
2 3 5 6 7 108 9
200
400
CURRENT IN MULTIPLES OF LONG DELAY SETTING I
CURRENT IN MULTIPLES OF LONG DELAY SETTING I
1000
2000
3000
4000
5000
6000
7000
8000
9000
10,0
00
0.8
0.7
0.6
0.9
1
MinimumTotalClearingTime
MaximumTotalClearingTime
AvailableLong DelayTime SettingsShown @ 6 x I r
2-24 seconds +0 ⁄-30%in 0.1 secondincrements
AvailableShort DelayPickup Settings1.5 to 8 x Ir5% in 0.1
increments
Available I t SlopeShort Delay Time Settings0.1 to 0.5 seconds in0.01 second increments
2
Available Long DelayPickup Settings (I )r0.4 to 1 x I = In rin 0.01 increments
.5
.3
.1
r
r
4
7
2
24
100
ApplicationDeterminesEnd of Curve
+-
1.15
Figure 17 . Digitrip Optim Long Delay I2T and Short Delay I2T Response - Curve Number SC-6924-98, May 1998
Digitrip OPTIM 550/1050 Circuit Breaker Time/Current Curves
(Phase Current)
Series C K-Frame Circuit Breakers
Long Delay I2T and Short Delay I2T Response
UL/CSA rms Sym . kA, 50/60 Hz
125 125 ORPK125A125 50 -125 75 -1000125 110 ORPK125A110 44 -110 66 - 880125 100 ORPK125A100 40 -100 60 - 800125 90 ORPK125A090 36 - 90 54 - 720125 70 ORPK125A070 28 - 70 42 - 560125 63 ORPK125A063 25 - 63 37.5 - 504250 250 ORPK250A250 100 - 250 150 - 2000250 225 ORPK250A225 90 - 225 135 - 1800 250 200 ORPK250A200 80 - 200 120 - 1600250 175 ORPK250A175 70 - 175 105 - 1400250 160 ORPK250A160 64 - 160 96 - 1280250 150 ORPK250A150 60 - 150 90 - 1200250 125 ORPK250A125 50 - 125 75 - 1000400 400 ORPK400A400 160 - 140 240 - 3200400 350 ORPK400A350 140 -350 210 - 2800400 300 ORPK400A300 120 - 300 180 - 2400400 250 ORPK400A250 100 - 250 150 - 2000400 225 ORPK400A225 90 - 225 135 -1800400 200 ORPK400A200 80 - 200 120 -1600
Maximum Ampere Rating
KD, CKD 65 35 25HKD, CHKD 100 65 35KDC 200 100 50
240V 480V 600VBreaker Type
Available Rating Plugs
1 For field testing primary injection methods, follow NEMA AB4 guidelines .
2 Calibration response in short delay pickup range is the same for 1, 2, or 3 poles in series .
3 There is a memory effect that can act to shorten the long delay . The memory effect comes into play if a current above the long delay pickup value exists for a time and then is cleared by the tripping of a downstream device or the circuit breaker itself . A subsequent overload will cause the circuit breaker to trip in shorter time than normal . The amount of time reduction is inverse to the amount of time that has elapsed since the previous overload . Approximately five minutes is required between overloads to completely reset the memory .
4 The end of the curve is determined by the interrupting rating of the circuit breaker . See above tabulation .
5 This curve is shown as a multiple of the Long Delay Pick-up Setting, (Ir) . This Ir setting is programmed in primary value amperes via a Breaker Interface Module, or OPTIMizer, or a Remote PC (IMPACC System) .
6 The Long Delay Pick-up Point (indicated by a flashing LED on the product) nominally occurs above 115% of the Ir current, with a +/- 5% tolerance . The short delay settings have conventional 100%, +/- 5% as the pickup points .
7 For additional curve tolerances contact Eaton .
8 Total clearing times shown include the response times of the trip unit, the breaker opening, and the quenching of the arcing current .
Rating Plug Ampere Rating(In)
Rating Plug Catalog Number
Long DelayPickup (Ir) Range0 .4 to 1 x InAmperes
Short DelayPickup Range1 .5 to 8 x IrAmperes
Interrupting Rating
.01 .01
10,000
5,000
3,000
2,000
1,000
500
300
200
100
50
30
20
10
5
3
2
1 11
.5 .5.5
.3 .3.3
.2 .2.2
.1 .1.1
.05 .05
.03 .03
.02 .02E
TU
NIM
1R
UO
H 1
SR
UO
H 2
SD
NO
CE
SNI
EMI
T
SD
NO
CE
SNI
EMI
T
500
600
700
800
9002 3 20 304 5 6 7 40 50 60 70 80 90 100
100
300
100.8
0.9 1
0.5
0.6
0.7 8 9
20 30 40 50 60 70 80 900.5
2 3 5 6 7 108 9
200
400
CURRENT IN MULTIPLES OF LONG DELAY SETTING I
CURRENT IN MULTIPLES OF LONG DELAY SETTING I
1000
2000
3000
4000
5000
6000
7000
8000
9000
10,0
00
0.8
0.7
0.6
0.9
1
MinimumTotalClearingTime
MaximumTotalClearingTime
AvailableLong DelayTime SettingsShown @ 6 x Ir2-24 seconds +0 ⁄-30%in 0.1 secondincrements
AvailableShort DelayPickup Settings1.5 to 8 x Ir5% in 0.1
increments
Available FlatShort Delay Time Settings0.1 to 0.5 secondsin 0.01 second increments
Available Long DelayPickup Settings (I )r0.4 to 1 x I = In rin 0.01 increments
ApplicationDeterminesEnd of Curve
.1
.5
.3
r
r
24
7
4
2
+
1.15
22
Time Current Curves TD012034ENEffective September 2015
Series CK-Frame
EATON www.eaton.com
.01 .01
10,000
5,000
3,000
2,000
1,000
500
300
200
100
50
30
20
10
5
3
2
1 11
.5 .5.5
.3 .3.3
.2 .2.2
.1 .1.1
.05 .05
.03 .03
.02 .02
ET
UNI
M 1
RU
OH
1S
RU
OH
2S
DN
OC
ES
NIE
MIT
SD
NO
CE
SNI
EMI
T
500
600
700
800
9002 3 20 304 5 6 7 40 50 60 70 80 90 100
100
300
100.8
0.9 1
0.5
0.6
0.7 8 9
20 30 40 50 60 70 80 900.5
2 3 5 6 7 108 9
200
400
CURRENT IN MULTIPLES OF LONG DELAY SETTING I
CURRENT IN MULTIPLES OF LONG DELAY SETTING I
1000
2000
3000
4000
5000
6000
7000
8000
9000
10,0
00
0.8
0.7
0.6
0.9
1
MinimumTotalClearingTime
MaximumTotalClearingTime
AvailableLong DelayTime SettingsShown @ 6 x Ir2-24 seconds +0 ⁄-30%in 0.1 secondincrements
AvailableShort DelayPickup Settings1.5 to 8 x Ir5% in 0.1
increments
Available FlatShort Delay Time Settings0.1 to 0.5 secondsin 0.01 second increments
Available Long DelayPickup Settings (I )r0.4 to 1 x I = In rin 0.01 increments
ApplicationDeterminesEnd of Curve
.1
.5
.3
r
r
24
7
4
2
+
1.15
Digitrip OPTIM 550/1050 Circuit Breaker Time/Current Curves
(Phase Current)
Series C K-Frame Circuit Breakers
Long Delay I2T and Short Delay Flat Response
UL/CSA rms Sym . kA, 50/60 Hz
125 125 ORPK125A125 50 -125 75 -1000125 110 ORPK125A110 44 -110 66 - 880125 100 ORPK125A100 40 -100 60 - 800125 90 ORPK125A090 36 - 90 54 - 720125 70 ORPK125A070 28 - 70 42 - 560125 63 ORPK125A063 25 - 63 37.5 - 504250 250 ORPK250A250 100 - 250 150 - 2000250 225 ORPK250A225 90 - 225 135 - 1800 250 200 ORPK250A200 80 - 200 120 - 1600250 175 ORPK250A175 70 - 175 105 - 1400250 160 ORPK250A160 64 - 160 96 - 1280250 150 ORPK250A150 60 - 150 90 - 1200250 125 ORPK250A125 50 - 125 75 - 1000400 400 ORPK400A400 160 - 140 240 - 3200400 350 ORPK400A350 140 -350 210 - 2800400 300 ORPK400A300 120 - 300 180 - 2400400 250 ORPK400A250 100 - 250 150 - 2000400 225 ORPK400A225 90 - 225 135 -1800400 200 ORPK400A200 80 - 200 120 -1600
Maximum Ampere Rating
KD, CKD 65 35 25HKD, CHKD 100 65 35KDC 200 100 50
240V 480V 600VBreaker Type
Available Rating Plugs
1 For field testing primary injection methods, follow NEMA AB4 guidelines .
2 Calibration response in short delay pickup range is the same for 1, 2, or 3 poles in series .
3 There is a memory effect that can act to shorten the long delay . The memory effect comes into play if a current above the long delay pickup value exists for a time and then is cleared by the tripping of a downstream device or the circuit breaker itself . A subsequent overload will cause the circuit breaker to trip in shorter time than normal . The amount of time reduction is inverse to the amount of time that has elapsed since the previous overload . Approximately five minutes is required between overloads to completely reset the memory .
4 The end of the curve is determined by the interrupting rating of the circuit breaker . See above tabulation .
5 This curve is shown as a multiple of the Long Delay Pick-up Setting, (Ir) . This Ir setting is programmed in primary value amperes via a Breaker Interface Module, or OPTIMizer, or a Remote PC (IMPACC System) .
6 The Long Delay Pick-up Point (indicated by a flashing LED on the product) nominally occurs above 115% of the Ir current, with a +/- 5% tolerance . The short delay settings have conventional 100%, +/- 5% as the pickup points .
7 For additional curve tolerances contact Eaton .
8 Total clearing times shown include the response times of the trip unit, the breaker opening, and the quenching of the arcing current .
Rating Plug Catalog Number
Long DelayPickup (Ir) Range0 .4 to 1 x InAmperes
Short DelayPickup Range1 .5 to 8 x IrAmperes
Figure 18 . Digitrip Optim Long Delay I2T and Short Delay Flat Response - Curve Number SC-6925-98, May 1998
Interrupting Rating
23
Time Current Curves TD012034ENEffective September 2015
Series CK-Frame
EATON www.eaton.com
Proof 9 — November 12, 2015 4:54 PM
Rating Plug Ampere Rating(In)
.01 .01
10,000
5,000
3,000
2,000
1,000
500
300
200
100
50
30
20
10
5
3
2
1 11
.5 .5.5
.3 .3.3
.2 .2.2
.1 .1.1
.05 .05
.03 .03
.02 .02
ET
UNI
M 1
RU
OH
1S
RU
OH
2S
DN
OC
ES
NIE
MIT
SD
NO
CE
SNI
EMI
T
500
600
700
800
9002 3 20 304 5 6 7 40 50 60 70 80 90 100
100
300
100.8
0.9 1
0.5
0.6
0.7 8 9
20 30 40 50 60 70 80 900.5
2 3 5 6 7 108 9
200
400
CURRENT IN MULTIPLES OF LONG DELAY SETTING I
CURRENT IN MULTIPLES OF LONG DELAY SETTING I
1000
2000
3000
4000
5000
6000
7000
8000
9000
10,0
00
0.8
0.7
0.6
0.9
1
ApplicationDeterminesEnd of Curve
MinimumTotalClearingTime
MaximumTotalClearingTime
AvailableLong DelayTime SettingsShown @ 6 x I r1-5 seconds +10 ⁄-40%in 0.1 secondincrements
AvailableShort DelayPickup Settings1.5 to 8 x Ir5% in 0.1
increments
Available FlatShort Delay Time Settings0.1 to 0.5 secondsin 0.01 second increments
Available Long DelayPickup Settings (I )r0.4 to 1 x I = In rin 0.01 increments
5
1
.5
.1
r
r
+
1.15
1.58
Digitrip OPTIM 550/1050 Circuit Breaker Time/Current Curves
(Phase Current)
Series C K-Frame Circuit Breakers
Long Delay I4T and Short Delay Flat Response
Notes:
1 For field testing primary injection methods, follow NEMA AB4 guidelines .
2 Calibration response in short delay pickup range is the same for 1, 2, or 3 poles in series .
3 There is a memory effect that can act to shorten the long delay . The memory effect comes into play if a current above the long delay pickup value exists for a time and then is cleared by the tripping of a downstream device or the circuit breaker itself . A subsequent overload will cause the circuit breaker to trip in shorter time than normal . The amount of time reduction is inverse to the amount of time that has elapsed since the previous overload . Approximately five minutes is required between overloads to completely reset the memory .
4 The end of the curve is determined by the interrupting rating of the circuit breaker . See above tabulation .
5 This curve is shown as a multiple of the Long Delay Pick-up Setting, (Ir) . This Ir setting is programmed in primary value amperes via a Breaker Interface Module, or OPTIMizer, or a Remote PC (IMPACC System) .
6 The Long Delay Pick-up Point (indicated by a flashing LED on the product) nominally occurs above 115% of the Ir current, with a +/- 5% tolerance . The short delay settings have conventional 100%, +/- 5% as the pickup points .
7 For additional curve tolerances contact Eaton .
8 Total clearing times shown include the response times of the trip unit, the breaker opening, and the quenching of the arcing current .
Figure 19 . Digitrip Optim Long Delay I4T and Short Delay Flat Response - Curve Number SC-6926-98, May 1998
125 125 ORPK125A125 50 -125 75 -1000125 110 ORPK125A110 44 -110 66 - 880125 100 ORPK125A100 40 -100 60 - 800125 90 ORPK125A090 36 - 90 54 - 720125 70 ORPK125A070 28 - 70 42 - 560125 63 ORPK125A063 25 - 63 37.5 - 504250 250 ORPK250A250 100 - 250 150 - 2000250 225 ORPK250A225 90 - 225 135 - 1800 250 200 ORPK250A200 80 - 200 120 - 1600250 175 ORPK250A175 70 - 175 105 - 1400250 160 ORPK250A160 64 - 160 96 - 1280250 150 ORPK250A150 60 - 150 90 - 1200250 125 ORPK250A125 50 - 125 75 - 1000400 400 ORPK400A400 160 - 140 240 - 3200400 350 ORPK400A350 140 -350 210 - 2800400 300 ORPK400A300 120 - 300 180 - 2400400 250 ORPK400A250 100 - 250 150 - 2000400 225 ORPK400A225 90 - 225 135 -1800400 200 ORPK400A200 80 - 200 120 -1600
Maximum Ampere Rating
Available Rating Plugs
Rating Plug Catalog Number
Long DelayPickup (Ir) Range0 .4 to 1 x InAmperes
Short DelayPickup Range1 .5 to 8 x IrAmperes
UL/CSA rms Sym . kA, 50/60 Hz
KD, CKD 65 35 25HKD, CHKD 100 65 35KDC 200 100 50
240V 480V 600VBreaker Type
Interrupting Rating
24
Time Current Curves TD012034ENEffective September 2015
Series CK-Frame
EATON www.eaton.com
Proof 9 — November 12, 2015 4:54 PMProof 9 — November 12, 2015 4:54 PM
Rating Plug Ampere Rating(In)
.01
10,000
5,000
3,000
2,000
1,000
500
300
200
100
50
30
20
10
5
3
2
.5
.3
.2
.1
.05
.03
.02
ET
UNI
M 1
RU
OH
1S
RU
OH
2S
DN
OC
ES
NIE
MIT
1
100
20 30 40 50 60 70 80 902 3 4 5 6 7 108 91
2 3 20 304 5 6 7 40 50 60 70 80 90 100
108 91
.01
.5
.3
.2
.1
.05
.03
.02
1
0002200 0003300
4000
400 0005500 0006600 0007700
800
8000
900
9080
0001100
CURRENT IN MULTIPLES OF PLUG RATING I
CURRENT IN MULTIPLES OF PLUG RATING I AMPERES
Available Flat ResponseShort Delay Time Settings0.1 to 0.5 secondsin 0.01 second increments
FixedInstantaneousOverride1500A (+/- 15%)
Available InstantaneousPickup Settings2 to 8 x In 10%In 0.1 Increments
ApplicationDeterminesEnd of Curve
.3
.1
.5
n
n
2 8 +
Digitrip OPTIM 550/1050 Circuit Breaker Time/Current Curves (Phase Current)
Series C K-Frame Circuit Breakers
INSTANTANEOUS AND OVERRIDE 125A Trip Unit
Notes:
1 For field testing primary injection methods, follow NEMA AB4 guidelines .
2 Calibration response in short delay pickup range is the same for 1, 2, or 3 poles in series .
3 There is a memory effect that can act to shorten the long delay . The memory effect comes into play if a current above the long delay pickup value exists for a time and then is cleared by the tripping of a downstream device or the circuit breaker itself . A subsequent overload will cause the circuit breaker to trip in shorter time than normal . The amount of time reduction is inverse to the amount of time that has elapsed since the previous overload . Approximately five minutes is required between overloads to completely reset the memory .
4 The end of the curve is determined by the interrupting rating of the circuit breaker . See above tabulation .
5 The instantaneous pick up settings are +/- 10% .
6 For additional curve tolerances contact Eaton .
7 Total clearing times shown include the response times of the trip unit, the breaker opening, and the quenching of the arcing current .
8 Fixed Instantaneous Override =1500A +/- 15% .
125 125 ORPK125A125 250 -1000 1275 -1725125 110 ORPK125A110 220 -880 1275 -1725125 100 ORPK125A100 200 -800 1275 -1725125 90 ORPK125A090 180 - 720 1275 -1725125 70 ORPK125A070 140 - 560 1275 -1725
Maximum Ampere Rating
Available Rating Plugs
Rating Plug Catalog Number
Long DelayPickup (Ir) Range2 to 8 x InAmperes
OverrideAmperes
UL/CSA rms Sym . kA, 50/60 Hz
KD, CKD 65 35 25HKD, CHKD 100 65 35KDC 200 100 50
240V 480V 600VBreaker Type
Figure 20 . Digitrip Optim Instantaneous and Override, 125A Trip Unit - Curve Number SC-6927-98, May 1998
Interrupting Rating
25
Time Current Curves TD012034ENEffective September 2015
Series CK-Frame
EATON www.eaton.com
Rating Plug Ampere Rating(In)
.01
10,000
5,000
3,000
2,000
1,000
500
300
200
100
50
30
20
10
5
3
2
.5
.3
.2
.1
.05
.03
.02
ET
UNI
M 1
RU
OH
1S
RU
OH
2S
DN
OC
ES
NIE
MIT
1
001
02 30 40 05 06 07 08 092 3 4 5 6 7 108 91
2 3 02 304 5 6 7 40 05 06 07 08 09001108 91
.01
.5
.3
.2
.1
.05
.03
.02
1
002
0002
0003
003
0004
004
0005
005
0006
006
0007
007
0008
008009
0009
0001
000,01
CURRENT IN MULTIPLES OF PLUG RATING I
CURRENT IN MULTIPLES OF PLUG RATING I AMPERES
Available Flat ResponseShort Delay Time Settings.1 to .5 secondsin .01 second increments
FixedInstantaneousOverride 3000A
Available InstantaneousPickup Settings2 to 8 x In 10%In 0.1 Increments
ApplicationDeterminesEnd of Curve
n
n
.3
.1
.5
2 8 +-
Digitrip OPTIM 550/1050 Circuit Breaker Time/Current Curves
(Phase Current)
Series C K-Frame Circuit Breakers
INSTANTANEOUS AND OVERRIDE, 250A Trip Unit
Notes:
1 For field testing primary injection methods, follow NEMA AB4 guidelines .
2 Calibration response in short delay pickup range is the same for 1, 2, or 3 poles in series .
3 There is a memory effect that can act to shorten the long delay . The memory effect comes into play if a current above the long delay pickup value exists for a time and then is cleared by the tripping of a downstream device or the circuit breaker itself . A subsequent overload will cause the circuit breaker to trip in shorter time than normal . The amount of time reduction is inverse to the amount of time that has elapsed since the previous overload . Approximately five minutes is required between overloads to completely reset the memory .
4 The end of the curve is determined by the interrupting rating of the circuit breaker . See above tabulation .
5 The instantaneous pickup settings are +/- 10% .
6 For additional curve tolerances contact Eaton .
7 Total clearing times shown include the response times of the trip unit, the breaker opening, and the quenching of the arcing current .
8 F ixed Instantaneous Override =3000A +/- 15% .
250 250 ORPK250A250 500 - 2000 2550 - 3450250 225 ORPK250A225 450 - 1800 2550 - 3450 250 200 ORPK250A200 400 - 1600 2550 - 3450250 175 ORPK250A175 350 - 1400 2550 - 3450250 160 ORPK250A160 320 - 1280 2550 - 3450250 150 ORPK250A150 300 - 1200 2550 - 3450250 125 ORPK250A125 250 - 1000 2550 - 3450
Maximum Ampere Rating
Available Rating Plugs
Rating Plug Catalog Number
Long DelayPickup (Ir) Range2 to 8 x InAmperes
OverrideAmperes
UL/CSA rms Sym . kA, 50/60 Hz
KD, CKD 65 35 25HKD, CHKD 100 65 35KDC 200 100 50
240V 480V 600VBreaker Type
Interrupting Rating
Figure 21 . Digitrip Optim Instantaneous and Override, 250A Trip Unit - Curve Number SC-6928-98, May 1998
26
Time Current Curves TD012034ENEffective September 2015
Series CK-Frame
EATON www.eaton.com
Rating Plug Ampere Rating(In)
.01
10,000
5,000
3,000
2,000
1,000
500
300
200
100
50
30
20
10
5
3
2
.5
.3
.2
.1
.05
.03
.02
ET
UNI
M 1
RU
OH
1S
RU
OH
2S
DN
OC
ES
NIE
MIT
1
001
02 30 40 05 06 07 08 092 3 4 5 6 7 108 91
2 3 02 304 5 6 7 40 05 06 07 08 09001108 91
.01
.5
.3
.2
.1
.05
.03
.02
1
002
0002
0003
003
0004
004
0005
005
0006
006
0007
007
0008
008009
0009
0001
000,01
CURRENT IN MULTIPLES OF PLUG RATING I
CURRENT IN MULTIPLES OF PLUG RATING I AMPERES
Available Flat ResponseShort Delay Time Settings.1 to .5 secondsin .01 second increments
FixedInstantaneousOverride 3000A
Available InstantaneousPickup Settings2 to 8 x In 10%In 0.1 Increments
ApplicationDeterminesEnd of Curve
n
n
.3
.1
.5
2 8 +-
.01
10,000
5,000
3,000
2,000
1,000
500
300
200
100
50
30
20
10
5
3
2
.5
.3
.2
.1
.05
.03
.02
ET
UNI
M 1
RU
OH
1S
RU
OH
2S
DN
OC
ES
NIE
MIT
1
001
02 03 40 50 06 70 08 092 3 4 5 6 7 108 91
2 3 02 034 5 6 7 40 50 06 70 08 09001108 91
.01
.5
.3
.2
.1
.05
.03
.02
1
0002
00002
0003
003
0004
004
0005
005
0006
006
0007
007
0008
008009
0009
0001
00001
CURRENT IN MULTIPLES OF PLUG RATING I
CURRENT IN MULTIPLES PLUG RATING I AMPERES
Available Flat ResponseShort Delay Time Settings0.1 to 0.5 secondsin 0.01 second increments
FixedInstantaneousOverride 4800A
Available InstantaneousPickup Settings2 to 8 x In +10%In 0.1 Increments
ApplicationDeterminesEnd of Curve
n
n
.3
.1
.5
2 8
Figure 22 . Digitrip Optim Instantaneous and Override, 400A Trip Unit - Curve Number SC-6929-98, May 1998
Digitrip OPTIM 550/1050 Circuit Breaker Time/Current Curves
(Phase Current)
Series C K-Frame Circuit Breakers
INSTANTANEOUS AND OVERRIDE, 400A Trip Unit
Notes:
1 For field testing primary injection methods, follow NEMA AB4 guidelines .
2 Calibration response in short delay pickup range is the same for 1, 2, or 3 poles in series .
3 There is a memory effect that can act to shorten the long delay . The memory effect comes into play if a current above the long delay pickup value exists for a time and then is cleared by the tripping of a downstream device or the circuit breaker itself . A subsequent overload will cause the circuit breaker to trip in shorter time than normal . The amount of time reduction is inverse to the amount of time that has elapsed since the previous overload . Approximately five minutes is required between overloads to completely reset the memory .
4 The end of the curve is determined by the interrupting rating of the circuit breaker . See above tabulation .
5 The instantaneous pickup settings are +/- 10% .
6 For additional curve tolerances contact Eaton .
7 Total clearing times shown include the response times of the trip unit, the breaker opening, and the quenching of the arcing current .
8 Fixed Instantaneous Override =4800A +/- 15% .
Maximum Ampere Rating
Available Rating Plugs
Rating Plug Catalog Number
Long DelayPickup (Ir) Range2 to 8 x InAmperes
OverrideAmperes
UL/CSA rms Sym . kA, 50/60 Hz
KD, CKD 65 35 25HKD, CHKD 100 65 35KDC 200 100 50
240V 480V 600VBreaker Type
Interrupting Rating
400 400 ORPK400A400 800 - 3200 4080 - 5520400 350 ORPK400A350 700 -2800 4080 - 5520400 300 ORPK400A300 600 - 2400 4080 - 5520400 250 ORPK400A250 500 - 2000 4080 - 5520400 225 ORPK400A225 450 - 1800 4080 - 5520400 200 ORPK400A200 400 - 1600 4080 - 5520
27
Time Current Curves TD012034ENEffective September 2015
Series CK-Frame
EATON www.eaton.com
Rating Plug Ampere Rating(In)
.01
10,000
5,000
3,000
2,000
1,000
500
300
200
100
50
30
20
10
5
3
2
.5
.3
.2
.1
.05
.03
.02
ET
UNI
M 1
RU
OH
1S
RU
OH
2S
DN
OC
ES
NIE
MIT
1
CURRENT IN MULTIPLES OF CURRENT SENSOR FRAME RATING I
.01
.5
.3
.2
.1
.05
.03
.02
1
.1.1
.2.2
.3.3
.4.4
.5.5
.6.6
.7.7
.8.8
.9.9
11
22
33
44
55
66
77
88
99
1010
.2 .3 .4 .5 .6 .7 .8 .9 1 2 3 4 5 6 7 8 9 10
Available Ground FaultPickup Settings0.2 to 1.0 x Current SensorFrame Rating I + 10%s
in 0.1 increments
1.01.01.0.5.2
Available Flat ResponseGround Fault Time Settings0.1 to 0.5 secondsin 0.01 second increments
.5
.3
.1
Flat Shape forGround FaultTime Settings
I t Slope forGround FaultTime Settings
2
Availaible I t ResponseGround Fault Time Settings0.1 to 0.5 secondsin 0.01 second increments
2
s
1.0
.5
.5
.3
.1
.2
CURRENT IN MULTIPLES OF CURRENT SENSOR FRAME RATING I s
Digitrip OPTIM Circuit Breaker Time/Current Curves (Ground Current)
Series C K-Frame Circuit Breakers
GROUND FAULT TRIP OR GROUND FAULT ALARM ONLY
Notes:
1 For field testing primary injection methods, follow NEMA AB4 guidelines .
2 Calibration response in short delay pickup range is the same for 1, 2, or 3 poles in series .
3 There is a memory effect that can act to shorten the long delay . The memory effect comes into play if a current above the long delay pickup value exists for a time and then is cleared by the tripping of a downstream device or the circuit breaker itself . A subsequent overload will cause the circuit breaker to trip in shorter time than normal . The amount of time reduction is inverse to the amount of time that has elapsed since the previous overload . Approximately five minutes is required between overloads to completely reset the memory .
4 The end of the curve is determined by the interrupting rating of the circuit breaker . See above tabulation .
5 The ground fault pickup settings are +/- 10% .
6 For additional curve tolerances contact Eaton .
7 Total clearing times shown include the response times of the trip unit, the breaker opening, and the quenching of the arcing current .
125 25 - 125250 50 - 250400 80 - 400
Maximum Ampere Rating
Available Ground Fault RangesGround FaultPickup Range0 .2 to 1 .0 x Is (Current Sensor Frame Rating)Amperes
UL/CSA rms Sym . kA, 50/60 Hz
KD, CKD 65 35 25HKD, CHKD 100 65 35KDC 200 100 50
240V 480V 600VBreaker Type
Interrupting Rating
Figure 23 . Digitrip Optim Ground Fault Trip or Ground Fault Alarm Only - Curve Number SC-6930-98, May 1998
100
10
5
1
0.5
0.1
0.05
0.01
0.005
0.0010.5 1 1.5 2 3 4 5 10
TimeDelaySetting
(s)
INST
0.15
0.2
0.5
1.0
2.0
EARTH LEAKAGE CURRENT IN MULTIPLES OF I n
AVAILABLE PICKUP SETTINGS - 0.03 4 , 0.1, 0.3, 0.5, 1, 3, 10, 30A.
TIME (s)
1 min
Ambient Temp. (250C)
28
Time Current Curves TD012034ENEffective September 2015
Series CK-Frame
EATON www.eaton.com
100
10
5
1
0.5
0.1
0.05
0.01
0.005
0.0010.5 1 1.5 2 3 4 5 10
TimeDelaySetting
(s)
INST
0.15
0.2
0.5
1.0
2.0
EARTH LEAKAGE CURRENT IN MULTIPLES OF I n
AVAILABLE PICKUP SETTINGS - 0.03 4 , 0.1, 0.3, 0.5, 1, 3, 10, 30A.
TIME (s)
1 min
Ambient Temp. (250C)
Figure 24 . UL Series C K-Frame Circuit breaker Earth Leakage Module, 110-480V - Curve Number TC01212005E, March 2003
Circuit Breaker Time/Current Curves
Earth Leakage Circuit Breaker - UL
1 . ELFD, JD, and KD earth leakage module 3 and 4 pole . 110 - 480V 60hz .
2 . For application and coordination purposes only . -20C to 50C ambient .
3 . Total clearing times include the response time of the earth leakage module, opening time of the breaker, and interruption of current .
4 . Pickup setting of .03A only available with instantaneous time delay .
*Curves do not apply to single phase applications .
– Legacy Product –
29
Time Current Curves TD012034ENEffective September 2015
Series CK-Frame
EATON www.eaton.com
100
10
5
1
0.5
0.1
0.05
0.01
0.005
0.0010.5 1 1.5 2 3 4 5 10
Time DelaySetting
(s)
INST
0.06
0.1
0.25
0.5
1.0
TIME (s)
1 min
EARTH LEAKAGE CURRENT IN MULTIPLES OF I n
Ambient Temp. (250C)
AVAILABLE PICKUP SETTINGS - 0.03 4 , 0.1, 0.3, 0.5, 1, 3, 10, 30A.
Figure 25 . IEC Series C K-Frame Circuit breaker Earth Leakage Module, 110-480V - Curve Number TC01212006E, March 2003
Circuit Breaker Time/Current Curves
Earth Leakage Circuit Breaker - IEC
1 . ELFD, JD, and KD earth leakage module 3 and 4 pole . *110 - 480V 50hz .
2 . For application and coordination purposes only . -20C to 50C ambient .
3 . Total clearing times include the response time of the earth leakage module, opening time of the breaker, and interruption of current .
4 . Pickup setting of .03A only available with instantaneous time delay .
*Curves do not apply to single phase applications .
– Legacy Product –
30
Time Current Curves TD012034ENEffective September 2015
Series CK-Frame
EATON www.eaton.com
31
Time Current Curves TD012034ENEffective September 2015
Series CK-Frame
EATON www.eaton.com
6X
8X
4X
7X
2X
Long Delay Minimum TotalClearing Time
Long Delay Maximum TotalClearing Time
Short DelayPickupSettings(Tolerance±10%)
5X
3X
CURRENT IN MULTIPLES OF RATING PLUG AMPERES (In)
.5
.5
TIM
E IN
SEC
ONDS
10,000
100
50
30
20
10
5
3
2
1
.5
.3
.2
.1
.05
.03
.02
.01
.005
.003
.002
.001
1,000
500
300
200
5,000
3,000
2,000
1 HO
UR1
MIN
UTE
2 HO
URS
201054321.8.6
1.8.6CURRENT IN MULTIPLES OF RATING PLUG AMPERES (In)
.7 .9 6 7 8 9
2010543 62 7 8 9.7 .9
Fixed InstantaneousOverride 4000A
InterruptingRatingDeterminesEnd ofCurve
10,0
00
.1
.01
1000
5000
4000
3000
2000
20,0
00
.001
SECO
NDS
CURRENT IN AMPS
30,0
00
40,0
00
50,0
00
100,
000
.02
.03
.04
.05
1.15
Standard Fixed%021 - %011 gulP gnitaR
Digitrip 310 Circuit Breaker Time/Current Curves (Phase Current)
Series C K-Frame Circuit Breakers
Catalog Types: KES3400LS, KES3400LSG Digitrip RMS 310 Trip Units for use with CircuitBreaker Types KDB, CKDB, HKDB, CHKDB, KD, HKD, CKD, and CHKD, 400A . max .
Short Delay
Engaged
Remove
Cat.
In
Digitrip RMS 310 Rating Plug
Push to TripPickup • x Ir
Digitrip RMS 310 Trip Unit40oC
5
73
2 8
4 6
TEST
Fixed Short Delay Time Typical Trip Unit Nameplate
400 Fixed 4KES 400T 800 - 3200350 Fixed 4KES 350T 700 - 2800300 Fixed 4KES 300T 600 - 2400250 Fixed 4KES 250T 500 - 2000225 Fixed 4KES 225T 450 - 1800200 Fixed 4KES 200T 400 - 1600200, 250, 300, 400 Adjustable A4KES 400T1 400 - 3200250, 300, 350, 400 Adjustable A4KES 400T3 500 - 3200
Ampere Rating(In)
Available Rating Plugs
TypeCatalogNumber
Short DelayPickup RangeAmperes
UL/CSA rms Sym . kA, 50/60 Hz
KD, CKD, KDB, CKDB 65 35 25HKD, CHKD, HKDB, CHKDB 100 65 35
240V 480V 600VBreaker Type
IEC 60947-2 rms Sym . kA, 50/60 Hz
KD, CKD, KDB, CKDB 65 40 40HKD, CHKD, HKDB, CHKDB 100 65 65
240V 380V 415VBreaker Type
Interrupting Rating
Notes:
Digitrip RMS 310 trip units are suitable for functional field testing with test kit Cat . No . STK2 . For field testing using primary injection methods, follow NEMA publication AB-4 .
There is a memory effect that can act to shorten the long delay . The memory effect comes into play if a current above the long delay pickup value exists for a time and then is cleared by the tripping of a downstream device or the circuit breaker itself . A subsequent overload will cause the circuit breaker to trip in shorter time than normal . The amount of time delay reduction is inverse to the amount of time that has elapsed since the previous overload . Approximately five minutes is required between overloads to completely reset the memory .
1 Curve accuracy applies from –20ºC to +55ºC ambient . For possible continuous ampere derating for ambient above 40ºC, refer to Eaton .
2 For high fault current levels, a fixed instantaneous override is provided at 4000A (Tolerance ±15%) .
3 The end of the curve is determined by the interrupting rating of the circuit breaker . See above tabulation .
4 Long Delay Pickup is 115% of In, +/- 5% .
Figure 26 . Series C Types KD, CKD, HKD, CHKD Circuit Breakers Equipped with Type KES Digitrip RMS 310 Trip Units,Types KES3400LS, KES3400LSG
– Legacy Product –
Ir = Continuous Current Setting or Rating Plug Value, Is = Current Sensor Frame Rating, In = Rating Plug Value, Ig = Unit of Ground Current, Ii = Instantaneous Override Pickup .
32
Time Current Curves TD012034ENEffective September 2015
Series CK-Frame
EATON www.eaton.com
6X
8X
4X
7X
3X
2XStandard Fixed
%021 - %011 gulP gnitaR
200 ms
100 ms
300 ms
5X
TIM
E IN
SEC
ONDS
10,000
100
50
30
20
10
5
3
2
1
.5
.3
.2
.1
.05
.03
.02
.01
.005
.003
.002
.001
1,000
500
300
200
5,000
3,000
2,000
1 HO
UR1
MIN
UTE
2 HO
URS
CURRENT IN MULTIPLES OF RATING PLUG AMPERES (In)
.5
.5 201054321.8.6
1.8.6CURRENT IN MULTIPLES OF RATING PLUG AMPERES (In)
.7 .9 6 7 8 9
2010543 62 7 8 9
Short DelayPickupSettings(Tolerance±10%)
Long Delay Maximum TotalClearing Total
.7 .9
Fixed InstantaneousOverride 4000A
InterruptingRatingDeterminesEnd ofCurve
10,0
00
.1
.01
1000
5000
4000
3000
2000
20,0
00
.001
SECO
NDS
CURRENT IN AMPS
30,0
00
40,0
00
50,0
00
100,
000
1
.02
.03
.04
.05
.2
.3
.4
.5
Long Delay Minimum TotalClearing Time
I
1.15
Digitrip 310 Circuit Breaker Time/Current Curves (Phase Current)
Series C K-Frame Circuit Breakers
Catalog Types: KES3400LSI, KES3400LSIG Digitrip RMS 310 Units for use with CircuitBreaker Types KD, HKD, CKD, and CHKD, 400A . max .
Short Delay
Engaged
Remove
Cat.
In
Digitrip RMS 310 Rating Plug
Push to TripPickup • x Ir
Digitrip RMS 310 Trip Unit40oC
5
73
2 8
4 6
TEST
Fixed Short Delay Time Typical Trip Unit Nameplate
400 Fixed 4KES 400T 800 - 3200350 Fixed 4KES 350T 700 - 2800300 Fixed 4KES 300T 600 - 2400250 Fixed 4KES 250T 500 - 2000225 Fixed 4KES 225T 450 - 1800200 Fixed 4KES 200T 400 - 1600200, 250, 300, 400 Adjustable A4KES 400T1 400 - 3200250, 300, 350, 400 Adjustable A4KES 400T3 500 - 3200
Ampere Rating(In)
Available Rating Plugs
TypeCatalogNumber
Short DelayPickup RangeAmperes
UL/CSA rms Sym . kA, 50/60 Hz
KD, CKD 65 35 25HKD, CHKD 100 65 35
240V 480V 600VBreaker Type
IEC 60947-2 rms Sym . kA, 50/60 Hz
KD, CKD 65 40 40HKD, CHKD 100 65 65
240V 380V 415VBreaker Type
Interrupting Rating
Notes:
Digitrip RMS 310 trip units are suitable for functional field testing with test kit Cat . No . STK2 . For field testing using primary injection methods, follow NEMA publication AB-4 .
There is a memory effect that can act to shorten the long delay . The memory effect comes into play if a current above the long delay pickup value exists for a time and then is cleared by the tripping of a downstream device or the circuit breaker itself . A subsequent overload will cause the circuit breaker to trip in shorter time than normal . The amount of time delay reduction is inverse to the amount of time that has elapsed since the previous overload . Approximately five minutes is required between overloads to completely reset the memory .
1 Curve accuracy applies from –20ºC to +55ºC ambient . For possible continuous ampere derating for ambient above 40ºC, refer to Eaton .
2 For high fault current levels, a fixed instantaneous override is provided at 4000A (Tolerance ±15%) .
3 The end of the curve is determined by the interrupting rating of the circuit breaker . See above tabulation .
4 Long Delay Pickup is 115% of In, +/- 5% .
Figure 27 . Series C Types KD, CKD, HKD, CHKD Circuit Breakers Equipped with Type KES Digitrip RMS 310 Trip Units,Types KES3400LSI, KES3400LSIG
– Legacy Product –
Ir = Continuous Current Setting or Rating Plug Value, Is = Current Sensor Frame Rating, In = Rating Plug Value, Ig = Unit of Ground Current, Ii = Instantaneous Override Pickup .
33
Time Current Curves TD012034ENEffective September 2015
Series CK-Frame
EATON www.eaton.com
6X
8X
4X
7X
2X
Long Delay Minimum TotalClearing Time
Long Delay Maximum TotalClearing Time
Short DelayPickupSettings(Tolerance±10%)
5X
3X
CURRENT IN MULTIPLES OF RATING PLUG AMPERES (In)
.5
.5
TIM
E IN
SEC
ONDS
10,000
100
50
30
20
10
5
3
2
1
.5
.3
.2
.1
.05
.03
.02
.01
.005
.003
.002
.001
1,000
500
300
200
5,000
3,000
2,000
1 HO
UR1
MIN
UTE
2 HO
URS
201054321.8.6
1.8.6CURRENT IN MULTIPLES OF RATING PLUG AMPERES (In)
.7 .9 6 7 8 9
2010543 62 7 8 9.7 .9
CURRENT IN AMPS
.02
.03
.04
.05Fixed InstantaneousOverride 4000A
InterruptingRatingDeterminesEnd ofCurve
10,0
00
.1
.01
1000
5000
4000
3000
2000
20,0
00
.001
SECO
NDS
30,0
00
40,0
00
50,0
00
100,
000
1.15
Standard Fixed%021 - %011 gulP gnitaR
Figure 28 . Series C Types KD, CKD, HKD, CHKD Circuit Breakers Equipped with Type KES Digitrip RMS 310 Trip Units,Types KES3250LS, KES3250LSG
Digitrip 310 Circuit Breaker Time/Current Curves (Phase Current)
Series C K-Frame Circuit Breakers
Catalog Types: KES3250LS, KES3250LSG Digitrip RMS 310 Units for use with CircuitBreaker Types KDB, CKDB, HKDB, CHKDB, KD, HKD, CKD, and CHKD, 250A . max .
Short Delay
Engaged
Remove
Cat.
In
Digitrip RMS 310 Rating Plug
Push to TripPickup • x Ir
Digitrip RMS 310 Trip Unit40oC
5
73
2 8
4 6
TEST
Fixed Short Delay Time Typical Trip Unit Nameplate
Available Rating Plugs
UL/CSA rms Sym . kA, 50/60 Hz
KD, CKD, KDB, CKDB 65 35 25HKD, CHKD, HKDB, CHKDB 100 65 35
240V 480V 600VBreaker Type
IEC 60947-2 rms Sym . kA, 50/60 Hz
KD, CKD, KDB, CKDB 65 40 40HKD, CHKD, HKDB, CHKDB 100 65 65
240V 380V 415VBreaker Type
Interrupting Rating
Notes:
Digitrip RMS 310 trip units are suitable for functional field testing with test kit Cat . No . STK2 . For field testing using primary injection methods, follow NEMA publication AB-4 .
There is a memory effect that can act to shorten the long delay . The memory effect comes into play if a current above the long delay pickup value exists for a time and then is cleared by the tripping of a downstream device or the circuit breaker itself . A subsequent overload will cause the circuit breaker to trip in shorter time than normal . The amount of time delay reduction is inverse to the amount of time that has elapsed since the previous overload . Approximately five minutes is required between overloads to completely reset the memory .
1 Curve accuracy applies from –20ºC to +55ºC ambient . For possible continuous ampere derating for ambient above 40ºC, refer to Eaton .
2 For high fault current levels, a fixed instantaneous override is provided at 4000A (Tolerance ±15%) .
3 The end of the curve is determined by the interrupting rating of the circuit breaker . See above tabulation .
4 Long Delay Pickup is 115% of In, +/- 5% .
250 Fixed 2KES 250T 250 - 1000225 Fixed 2KES 225T 220 - 880200 Fixed 2KES 200T 200 - 800175 Fixed 2KES 175T 180 - 720150 Fixed 2KES 150T 140 - 560125 Fixed 2KES 125T 250 - 1000125, 150, 200, 250 Adjustable A2KES 250T1 250 - 2000
Ampere Rating(In) Type
CatalogNumber
Short DelayPickup RangeAmperes
– Legacy Product –
Ir = Continuous Current Setting or Rating Plug Value, Is = Current Sensor Frame Rating, In = Rating Plug Value, Ig = Unit of Ground Current, Ii = Instantaneous Override Pickup .
34
Time Current Curves TD012034ENEffective September 2015
Series CK-Frame
EATON www.eaton.com
6X
8X
4X
7X
3X
2X
200 ms
100 ms
I
300 ms
5X
TIM
E IN
SEC
ONDS
10,000
100
50
30
20
10
5
3
2
1
.5
.3
.2
.1
.05
.03
.02
.01
.005
.003
.002
.001
1,000
500
300
200
5,000
3,000
2,000
1 HO
UR1
MIN
UTE
2 HO
URS
CURRENT IN MULTIPLES OF RATING PLUG AMPERES (In)
.5
.5 201054321.8.6
1.8.6CURRENT IN MULTIPLES OF RATING PLUG AMPERES (In)
.7 .9 6 7 8 9
2010543 62 7 8 9
Short DelayPickupSettings(Tolerance±10%)
Long Delay Minimum TotalClearing Time
Long Delay Maximum TotalClearing Time
.7 .9
.02
.03
.04
.05Fixed InstantaneousOverride 4000A
InterruptingRatingDeterminesEnd ofCurve
10,0
00
.1
.01
1000
5000
4000
3000
2000
20,0
00
.001
SECO
NDS
CURRENT IN AMPS
30,0
00
40,0
00
50,0
00
100,
000
1
1.15
Standard Fixed%021 - %011 gulP gnitaR
Digitrip 310 Circuit Breaker Time/Current Curves (Phase Current)
Series C K-Frame Circuit Breakers
Catalog Types: KES3250LSI, KES3250LSIG Digitrip RMS 310 Units for use with CircuitBreaker Types KDB, CKDB, HKDB, CHKDB, KD, HKD, CKD, and CHKD, 250A . max .
TEST
Short Delay
Engaged
Remove
Cat.
In
Digitrip RMS 310 Rating Plug
Push to TripPickup • x Ir Time • ms
Digitrip RMS 310 Trip Unit40oC
5
73
2 8
4 6300
100
INST
200
Adjustable Short Delay Time Typical Trip Unit Nameplate
Available Rating Plugs
UL/CSA rms Sym . kA, 50/60 Hz
KD, CKD, KDB, CKDB 65 35 25HKD, CHKD, HKDB, CHKDB 100 65 35
240V 480V 600VBreaker Type
IEC 60947-2 rms Sym . kA, 50/60 Hz
KD, CKD, KDB, CKDB 65 40 40HKD, CHKD, HKDB, CHKDB 100 65 65
240V 380V 415VBreaker Type
Interrupting Rating
Notes:
Digitrip RMS 310 trip units are suitable for functional field testing with test kit Cat . No .STK2 . For field testing using primary injection methods, follow NEMA publication AB-4 .
There is a memory effect that can act to shorten the long delay . The memory effect comes into play if a current above the long delay pickup value exists for a time and then is cleared by the tripping of a downstream device or the circuit breaker itself . A subsequent overload will cause the circuit breaker to trip in shorter time than normal . The amount of time delay reduction is inverse to the amount of time that has elapsed since the previous overload . Approximately five minutes is required between overloads to completely reset the memory .
1 Curve accuracy applies from –20ºC to +55ºC ambient . For possible continuous ampere derating for ambient above 40ºC, refer to Eaton .
2 For high fault current levels, a fixed instantaneous override is provided at 4000A (Tolerance ±15%) .
3 The end of the curve is determined by the interrupting rating of the circuit breaker . See above tabulation .
4 Long Delay Pickup is 115% of In, +/- 5% .
250 Fixed 2KES 250T 500 - 2000225 Fixed 2KES 225T 450 - 1800200 Fixed 2KES 200T 400 - 1600175 Fixed 2KES 175T 350 - 1400150 Fixed 2KES 150T 300 - 1200125 Fixed 2KES 125T 250 - 1000125, 150, 200, 250 Adjustable A2KES 250T1 250 - 2000
Ampere Rating(In) Type
CatalogNumber
Short DelayPickup RangeAmperes
Figure 29 . Series C Types KD, CKD, HKD, CHKD Circuit Breakers Equipped with Type KES Digitrip RMS 310 Trip Units,Types KES3250LSI, KES3250LSIG
– Legacy Product –
Ir = Continuous Current Setting or Rating Plug Value, Is = Current Sensor Frame Rating, In = Rating Plug Value, Ig = Unit of Ground Current, Ii = Instantaneous Override Pickup .
35
Time Current Curves TD012034ENEffective September 2015
Series CK-Frame
EATON www.eaton.com
6X
8X
4X
7X
2X
Long Delay Minimum TotalClearing Time
Long Delay Maximum TotalClearing Time
Short DelayPickupSettings(Tolerance ±10%)
5X
3X
CURRENT IN MULTIPLES OF RATING PLUG AMPERES (In)
.5
.5
TIM
E IN
SEC
ONDS
10,000
100
50
30
20
10
5
3
2
1
.5
.3
.2
.1
.05
.03
.02
.01
.005
.003
.002
.001
1,000
500
300
200
5,000
3,000
2,000
1 HO
UR1
MIN
UTE
2 HO
URS
201054321.8.6
1.8.6CURRENT IN MULTIPLES OF RATING PLUG AMPERES (In)
.7 .9 6 7 8 9
2010543 62 7 8 9.7 .9
.02
.03
.04
.05
Fixed InstantaneousOverride 3000A
InterruptingRatingDeterminesEnd ofCurve
10,0
00
.1
.01
1000
5000
4000
3000
2000
20,0
00
.001
SECO
NDS
CURRENT IN AMPS
30,0
00
40,0
00
50,0
00
100,
000
1.15
Standard Fixed%021 - %011 gulP gnitaR
Digitrip 310 Circuit Breaker Time/Current Curves (Phase Current)
Series C K-Frame Circuit Breakers
Catalog Types: KES3125LS, KES3125LSG Digitrip RMS 310 Trip Units for use with CircuitBreaker Types: KDB, HKDB, CKDB, CHKDB, KD, HKD, CKD, and CHKD, 125A . max .
Short Delay
Engaged
Remove
Cat.
In
Digitrip RMS 310 Rating Plug
Push to TripPickup • x Ir
Digitrip RMS 310 Trip Unit40oC
5
73
2 8
4 6
TEST
Fixed Short Delay Time Typical Trip Unit Nameplate
125 Fixed 1KES 125T 250 - 1000110 Fixed 1KES 110T 220 - 880100 Fixed 1KES 100T 200 - 80090 Fixed 1KES 90T 180 - 72070 Fixed 1KES 70T 140 - 56070, 90, 100, 125 Adjustable A1KES 125T1 140- 1000
Ampere Rating(In)
Available Rating Plugs
TypeCatalogNumber
Short DelayPickup RangeAmperes
UL/CSA rms Sym . kA, 50/60 Hz
KD, CKD, KDB, CKDB 65 35 25HKD, CHKD, HKDB, CHKDB 100 65 35
240V 480V 600VBreaker Type
IEC 60947-2 rms Sym . kA, 50/60 Hz
KD, CKD, KDB, CKDB 65 40 40HKD, CHKD, HKDB, CHKDB 100 65 65KDC 200 100 50
240V 380V 415VBreaker Type
Interrupting Rating
Notes:
Digitrip RMS 310 trip units are suitable for functional field testing with test kit Cat . No . STK2 . For field testing using primary injection methods, follow NEMA publication AB-4 .
There is a memory effect that can act to shorten the long delay . The memory effect comes into play if a current above the long delay pickup value exists for a time and then is cleared by the tripping of a downstream device or the circuit breaker itself . A subsequent overload will cause the circuit breaker to trip in shorter time than normal . The amount of time delay reduction is inverse to the amount of time that has elapsed since the previous overload . Approximately five minutes is required between overloads to completely reset the memory .
1 Curve accuracy applies from –20ºC to +55ºC ambient . For possible continuous ampere derating for ambient above 40ºC, refer to Eaton .
2 For high fault current levels, a fixed instantaneous override is provided at 3000A (Tolerance ±15%) .
3 The end of the curve is determined by the interrupting rating of the circuit breaker . See above tabulation .
4 Long Delay Pickup is 115% of In, +/- 5% .
Figure 30 . Series C Types KD, CKD, HKD, CHKD Circuit Breakers Equipped with Type KES Digitrip RMS 310 Trip Units,Types KES3125LS, KES3125LSG
– Legacy Product –
Ir = Continuous Current Setting or Rating Plug Value, Is = Current Sensor Frame Rating, In = Rating Plug Value, Ig = Unit of Ground Current, Ii = Instantaneous Override Pickup .
36
Time Current Curves TD012034ENEffective September 2015
Series CK-Frame
EATON www.eaton.com
6X
8X
4X
7X
3X
2X
200 ms
100 ms
I
300 ms
5X
TIM
E IN
SEC
ONDS
10,000
100
50
30
20
10
5
3
2
1
.5
.3
.2
.1
.05
.03
.02
.01
.005
.003
.002
.001
1,000
500
300
200
5,000
3,000
2,000
1 HO
UR1
MIN
UTE
2 HO
URS
CURRENT IN MULTIPLES OF RATING PLUG AMPERES (In)
.5
.5 201054321.8.6
1.8.6CURRENT IN MULTIPLES OF RATING PLUG AMPERES (In)
.7 .9 6 7 8 9
2010543 62 7 8 9
Short DelayPickupSettings(Tolerance±10%)
Long Delay Minimum TotalClearing Time
Long Delay Maximum TotalClearing Time
.7 .9
.02
.03
.04
.05
Fixed InstantaneousOverride 3000A
InterruptingRatingDeterminesEnd ofCurve
10,0
00
.1
.01
1000
5000
4000
3000
2000
20,0
00
.001
SECO
NDS
CURRENT IN AMPS
30,0
00
40,0
00
50,0
00
100,
000
1.15
Standard Fixed%021 - %011 gulP gnitaR
Digitrip 310 Circuit Breaker Time/Current Curves (Phase Current)
Series C K-Frame Circuit Breakers
Catalog Types: KES3125LSI, KES3125LSIG Digitrip RMS 310 Trip Units for use with CircuitBreaker Types KDB, CKDB, HKDB, CHKDB, KD, HKD, CKD, and CHKD, 125A . max .
TEST
Short Delay
Engaged
Remove
Cat.
In
Digitrip RMS 310 Rating Plug
Push to TripPickup • x Ir Time • ms
Digitrip RMS 310 Trip Unit40oC
5
73
2 8
4 6300
100
INST
200
Adjustable Short Delay Time Typical Trip Unit Nameplate
125 Fixed 1KES 125T 250 - 1000110 Fixed 1KES 110T 220 - 880100 Fixed 1KES 100T 200 - 80090 Fixed 1KES 90T 180 - 72070 Fixed 1KES 70T 140 - 56070, 90, 100, 125 Adjustable A1KES 125T1 140- 1000
Ampere Rating(In)
Available Rating Plugs
TypeCatalogNumber
Short DelayPickup RangeAmperes
UL/CSA rms Sym . kA, 50/60 Hz
KD, CKD, KDB, CKDB 65 35 25HKD, CHKD, HKDB, CHKDB 100 65 35
240V 480V 600VBreaker Type
IEC 60947-2 rms Sym . kA, 50/60 Hz
KD, CKD, KDB, CKDB 65 40 40HKD, CHKD, HKDB, CHKDB 100 65 65
240V 380V 415VBreaker Type
Interrupting Rating
Notes:
Digitrip RMS 310 trip units are suitable for functional field testing with test kit Cat . No .STK2 . For field testing using primary injection methods, follow NEMA publication AB-4 .
There is a memory effect that can act to shorten the long delay . The memory effect comes into play if a current above the long delay pickup value exists for a time and then is cleared by the tripping of a downstream device or the circuit breaker itself . A subsequent overload will cause the circuit breaker to trip in shorter time than normal . The amount of time delay reduction is inverse to the amount of time that has elapsed since the previous overload . Approximately five minutes is required between overloads to completely reset the memory .
1 Curve accuracy applies from –20ºC to +55ºC ambient . For possible continuous ampere derating for ambient above 40ºC, refer to Eaton .
2 For high fault current levels, a fixed instantaneous override is provided at 3000A (Tolerance ±15%) .
3 The end of the curve is determined by the interrupting rating of the circuit breaker . See above tabulation .
4 Long Delay Pickup is 115% of In, +/- 5% .
Figure 31 . Series C Types KD, CKD, HKD, CHKD Circuit Breakers Equipped with Type KES Digitrip RMS 310 Trip Units, Types KES3125L-SI, KES3125LSIG
– Legacy Product –
Ir = Continuous Current Setting or Rating Plug Value, Is = Current Sensor Frame Rating, In = Rating Plug Value, Ig = Unit of Ground Current, Ii = Instantaneous Override Pickup .
37
Time Current Curves TD012034ENEffective September 2015
Series CK-Frame
EATON www.eaton.com
6X
8X
4X
7X
2X
Long Delay Minimum TotalClearing Time
Long Delay Maximum TotalClearing Time
Short DelayPickupSettings(Tolerance ±10%)
5X
3X
CURRENT IN MULTIPLES OF RATING PLUG AMPERES (In)
.5
.5
TIM
E IN
SEC
ONDS
10,000
100
50
30
20
10
5
3
2
1
.5
.3
.2
.1
.05
.03
.02
.01
.005
.003
.002
.001
1,000
500
300
200
5,000
3,000
2,000
1 HO
UR1
MIN
UTE
2 HO
URS
201054321.8.6
1.8.6CURRENT IN MULTIPLES OF RATING PLUG AMPERES (In)
.7 .9 6 7 8 9
2010543 62 7 8 9.7 .9
InterruptingRatingDeterminesEnd ofCurve
.02
.03
.04
.05
SECO
NDS
Fixed InstantaneousOverride 4000A
MaximumInterruptingTime
600 Vac
480 Vac
240 Vac
10,0
00
.1
.01
5000
4000
3000
2000
20,0
00
.001
CURRENT IN AMPS
30,0
00
40,0
00
50,0
00
100,
000
200,
000
1.15
Standard Fixed%021 - %011 gulP gnitaR
Digitrip 310 Circuit Breaker Time/Current Curves (Phase Current)
Series C K-Frame Circuit Breakers
Catalog Types: KES3400LS, KES3400LSG Digitrip RMS 310 Trip Units for use with CircuitBreaker Type KDC, 400A . max .
Short Delay
Engaged
Remove
Cat.
In
Digitrip RMS 310 Rating Plug
Push to TripPickup • x Ir
Digitrip RMS 310 Trip Unit40oC
5
73
2 8
4 6
TEST
Fixed Short Delay Time Typical Trip Unit Nameplate
Available Rating Plugs
UL/CSA rms Sym . kA, 50/60 Hz
KDC 200 100 50
240V 480V 600VBreaker Type
IEC 60947-2 rms Sym . kA, 50/60 Hz
KDC 200 100 100
240V 380V 415VBreaker Type
Interrupting Rating
Notes:
Digitrip RMS 310 trip units are suitable for functional field testing with test kit Cat . No .STK2 . For field testing using primary injection methods, follow NEMA publication AB-4 .
There is a memory effect that can act to shorten the long delay . The memory effect comes into play if a current above the long delay pickup value exists for a time and then is cleared by the tripping of a downstream device or the circuit breaker itself . A subsequent overload will cause the circuit breaker to trip in shorter time than normal . The amount of time delay reduction is inverse to the amount of time that has elapsed since the previous overload . Approximately five minutes is required between overloads to completely reset the memory .
1 Curve accuracy applies from –20ºC to +55ºC ambient . For possible continuous ampere derating for ambient above 40ºC, refer to Eaton .
2 For high fault current levels, a fixed instantaneous override is provided at 4000A (Tolerance ±15%) .
3 The end of the curve is determined by the interrupting rating of the circuit breaker . See above tabulation .
4 Long Delay Pickup is 115% of In, +/- 5% .
400 Fixed 4KES 400T 800 - 3200350 Fixed 4KES 350T 700 - 2800300 Fixed 4KES 300T 600 - 2400250 Fixed 4KES 250T 500 - 2000225 Fixed 4KES 225T 450 - 1800200 Fixed 4KES 200T 400 - 1600200, 250, 300, 400 Adjustable A4KES 400T1 400 - 3200200, 250, 300, 400 Adjustable A4KES 400T3 500 - 3200
Ampere Rating(In) Type
CatalogNumber
Short DelayPickup RangeAmperes
Figure 32 . Series C Type KDC Circuit Breakers Equipped with Type KES Digitrip RMS 310 Trip Units, Types KES3400LS, KES3400LSG
– Legacy Product –
Ir = Continuous Current Setting or Rating Plug Value, Is = Current Sensor Frame Rating, In = Rating Plug Value, Ig = Unit of Ground Current, Ii = Instantaneous Override Pickup .
38
Time Current Curves TD012034ENEffective September 2015
Series CK-Frame
EATON www.eaton.com
6X
8X
4X
7X
3X
2X
200 ms
100 ms
300 ms
5X
me.02
.03
.04
.05Fixed InstantaneousOverride 4000A
InterruptingRatingDeterminesEnd ofCurve
10,0
00
.1
.01
5000
4000
3000
2000
20,0
00
.001
SECO
NDS
CURRENT IN AMPS
30,0
00
40,0
00
50,0
00
100,
000
1
200,
000
600 Vac
480 Vac
240 Vac
MaximumInterruptingTime
TIM
E IN
SEC
ONDS
10,000
100
50
30
20
10
5
3
2
1
.5
.3
.2
.1
.05
.03
.02
.01
.005
.003
.002
.001
1,000
500
300
200
5,000
3,000
2,000
1 HO
UR1
MIN
UTE
2 HO
URS
CURRENT IN MULTIPLES OF RATING PLUG AMPERES (In)
.5
.5 201054321.8.6
1.8.6CURRENT IN MULTIPLES OF RATING PLUG AMPERES (In)
.7 .9 6 7 8 9
2010543 62 7 8 9
Short DelayPickupSettings(Tolerance±10%)
Long Delay Minimum TotalClearing Time
Long Delay Maximum TotalClearing Time
.7 .9
I
1.15
Standard Fixed%021 - %011 gulP gnitaR
Figure 33 . Series C Type KDC Circuit Breakers Equipped with Type KES Digitrip RMS 310 Trip Units, Types KES3400LSI, KES3400LSIG
Digitrip 310 Circuit Breaker Time/Current Curves (Phase Current)
Series C K-Frame Circuit Breakers
Catalog Types: KES3400LSI, KES3400LSIG, Digitrip RMS 310 Trip Units for use withCircuit Breaker Type KDC, 400A . max .
TEST
Short Delay
Engaged
Remove
Cat.
In
Digitrip RMS 310 Rating Plug
Push to TripPickup • x Ir Time • ms
Digitrip RMS 310 Trip Unit40oC
5
73
2 8
4 6300
100
INST
200
Adjustable Short Delay Time Typical Trip Unit Nameplate
Available Rating Plugs
UL/CSA rms Sym . kA, 50/60 Hz
KDC 200 100 50
240V 480V 600VBreaker Type
IEC 60947-2 rms Sym . kA, 50/60 Hz
KDC 200 100 100
240V 380V 415VBreaker Type
Interrupting Rating
Notes:
Digitrip RMS 310 trip units are suitable for functional field testing with test kit Cat . No .STK2 . For field testing using primary injection methods, follow NEMA publication AB-4 .
There is a memory effect that can act to shorten the long delay . The memory effect comes into play if a current above the long delay pickup value exists for a time and then is cleared by the tripping of a downstream device or the circuit breaker itself . A subsequent overload will cause the circuit breaker to trip in shorter time than normal . The amount of time delay reduction is inverse to the amount of time that has elapsed since the previous overload . Approximately five minutes is required between overloads to completely reset the memory .
1 Curve accuracy applies from –20ºC to +55ºC ambient . For possible continuous ampere derating for ambient above 40ºC, refer to Eaton .
2 For high fault current levels, a fixed instantaneous override is provided at 4000A (Tolerance ±15%) .
3 The end of the curve is determined by the interrupting rating of the circuit breaker . See above tabulation .
4 Long Delay Pickup is 115% of In, +/- 5% .
400 Fixed 4KES 400T 800 - 3200350 Fixed 4KES 350T 700 - 2800300 Fixed 4KES 300T 600 - 2400250 Fixed 4KES 250T 500 - 2000225 Fixed 4KES 225T 450 - 1800200 Fixed 4KES 200T 400 - 1600200, 250, 300, 400 Adjustable A4KES 400T1 400 - 3200200, 250, 300, 400 Adjustable A4KES 400T3 500 - 3200
Ampere Rating(In) Type
CatalogNumber
Short DelayPickup RangeAmperes
– Legacy Product –
Ir = Continuous Current Setting or Rating Plug Value, Is = Current Sensor Frame Rating, In = Rating Plug Value, Ig = Unit of Ground Current, Ii = Instantaneous Override Pickup .
39
Time Current Curves TD012034ENEffective September 2015
Series CK-Frame
EATON www.eaton.com
6X
8X
4X
7X
2X
Long Delay Minimum TotalClearing Time
Long Delay Maximum TotalClearing Time
Short DelayPickupSettings(Tolerance ±10%)
5X
3X
CURRENT IN MULTIPLES OF RATING PLUG AMPERES (In)
.5
.5
TIM
E IN
SEC
ONDS
10,000
100
50
30
20
10
5
3
2
1
.5
.3
.2
.1
.05
.03
.02
.01
.005
.003
.002
.001
1,000
500
300
200
5,000
3,000
2,000
1 HO
UR1
MIN
UTE
2 HO
URS
201054321.8.6
1.8.6CURRENT IN MULTIPLES OF RATING PLUG AMPERES (In)
.7 .9 6 7 8 9
2010543 62 7 8 9.7 .9
Fixed InstantaneousOverride 4000A
InterruptingRatingDeterminesEnd ofCurve
10,0
00
.1
.01
5000
4000
3000
2000
20,0
00
CURRENT IN AMPS
30,0
00
40,0
00
50,0
00
100,
000
200,
000
600 Vac
480 Vac
240 Vac
.02
.03
.04
.05
SECO
NDS
.001
1.15
Standard Fixed%021 - %011 gulP gnitaR
Digitrip 310 Circuit Breaker Time/Current Curves (Phase Current)
Series C K-Frame Circuit Breakers
Catalog Types: KES3250LS, KES3250LSG Digitrip RMS 310 Units for use with CircuitBreaker Type KDC, 250A . max .
Short Delay
Engaged
Remove
Cat.
In
Digitrip RMS 310 Rating Plug
Push to TripPickup • x Ir
Digitrip RMS 310 Trip Unit40oC
5
73
2 8
4 6
TEST
Fixed Short Delay Time Typical Trip Unit Nameplate
Available Rating Plugs
UL/CSA rms Sym . kA, 50/60 Hz
KDC 65 35 25
240V 480V 600VBreaker Type
IEC 60947-2 rms Sym . kA, 50/60 Hz
KDC 200 100 100
240V 380V 415VBreaker Type
Interrupting Rating
Notes:
Digitrip RMS 310 trip units are suitable for functional field testing with test kit Cat . No . STK2 . For field testing using primary injection methods, follow NEMA publication AB-4 .
There is a memory effect that can act to shorten the long delay . The memory effect comes into play if a current above the long delay pickup value exists for a time and then is cleared by the tripping of a downstream device or the circuit breaker itself . A subsequent overload will cause the circuit breaker to trip in shorter time than normal . The amount of time delay reduction is inverse to the amount of time that has elapsed since the previous overload . Approximately five minutes is required between overloads to completely reset the memory .
1 Curve accuracy applies from –20ºC to +55ºC ambient . For possible continuous ampere derating for ambient above 40ºC, refer to Eaton .
2 For high fault current levels, a fixed instantaneous override is provided at 4000A (Tolerance ±15%) .
3 The end of the curve is determined by the interrupting rating of the circuit breaker . See above tabulation .
4 Long Delay Pickup is 115% of In, +/- 5% .
250 Fixed 2KES 250T 250 - 1000225 Fixed 2KES 225T 220 - 880200 Fixed 2KES 200T 200 - 800175 Fixed 2KES 175T 180 - 720150 Fixed 2KES 150T 140 - 560125 Fixed 2KES 125T 250 - 1000125, 150, 200, 250 Adjustable A2KES 250T1 250 - 2000
Ampere Rating(In) Type
CatalogNumber
Short DelayPickup RangeAmperes
Figure 34 . Series C Type KDC Circuit Breakers Equipped with Type KES Digitrip RMS 310 Trip Units, Types KES3250LS, KES3250LSG
– Legacy Product –
Ir = Continuous Current Setting or Rating Plug Value, Is = Current Sensor Frame Rating, In = Rating Plug Value, Ig = Unit of Ground Current, Ii = Instantaneous Override Pickup .
40
Time Current Curves TD012034ENEffective September 2015
Series CK-Frame
EATON www.eaton.com
6X
8X
4X
7X
3X
2X
200 ms
100 ms
300 ms
5X
.02
.03
.04
.05Fixed InstantaneousOverride 4000A
InterruptingRatingDeterminesEnd ofCurve
10,0
00
.1
.01
5000
4000
3000
2000
20,0
00
.001
SECO
NDS
CURRENT IN AMPS
30,0
00
40,0
00
50,0
00
100,
000
1
200,
000
600 Vac
480 Vac
240 Vac
MaximumInterruptingTime
TIM
E IN
SEC
ONDS
10,000
100
50
30
20
10
5
3
2
1
.5
.3
.2
.1
.05
.03
.02
.01
.005
.003
.002
.001
1,000
500
300
200
5,000
3,000
2,000
1 HO
UR1
MIN
UTE
2 HO
URS
CURRENT IN MULTIPLES OF RATING PLUG AMPERES (In)
.5
.5 201054321.8.6
1.8.6CURRENT IN MULTIPLES OF RATING PLUG AMPERES (In)
.7 .9 6 7 8 9
2010543 62 7 8 9
Short DelayPickupSettings(Tolerance±10%)
Long Delay Minimum TotalClearing Time
Long Delay Maximum TotalClearing Time
.7 .9
I
1.15
Standard Fixed%021 - %011 gulP gnitaR
Digitrip 310 Circuit Breaker Time/Current Curves (Phase Current)
Series C K-Frame Circuit Breakers
Catalog Types: KES3250LSI, KES3250LSIG Digitrip RMS 310 Trip Units for use withCircuit Breaker Type KDC, 250A . max .
TEST
Short Delay
Engaged
Remove
Cat.
In
Digitrip RMS 310 Rating Plug
Push to TripPickup • x Ir Time • ms
Digitrip RMS 310 Trip Unit40oC
5
73
2 8
4 6300
100
INST
200
Adjustable Short Delay Time Typical Trip Unit Nameplate
Available Rating Plugs
UL/CSA rms Sym . kA, 50/60 Hz
KDC 200 100 50
240V 480V 600VBreaker Type
IEC 60947-2 rms Sym . kA, 50/60 Hz
KDC 200 100 100
240V 380V 415VBreaker Type
Interrupting Rating
Notes:
Digitrip RMS 310 trip units are suitable for functional field testing with test kit Cat . No . STK2 . For field testing using primary injection methods, follow NEMA publication AB-4 .
There is a memory effect that can act to shorten the long delay . The memory effect comes into play if a current above the long delay pickup value exists for a time and then is cleared by the tripping of a downstream device or the circuit breaker itself . A subsequent overload will cause the circuit breaker to trip in shorter time than normal . The amount of time delay reduction is inverse to the amount of time that has elapsed since the previous overload . Approximately five minutes is required between overloads to completely reset the memory .
1 Curve accuracy applies from –20ºC to +55ºC ambient . For possible continuous ampere derating for ambient above 40ºC, refer to Eaton .
2 For high fault current levels, a fixed instantaneous override is provided at 4000A (Tolerance ±15%) .
3 The end of the curve is determined by the interrupting rating of the circuit breaker . See above tabulation .
4 Long Delay Pickup is 115% of In, +/- 5% .
250 Fixed 2KES 250T 500 - 2000225 Fixed 2KES 225T 450 - 1800200 Fixed 2KES 200T 400 - 1600175 Fixed 2KES 175T 350 - 1400150 Fixed 2KES 150T 300 - 1200125 Fixed 2KES 125T 250 - 1000125, 150, 200, 250 Adjustable A2KES 250T1 250 - 1000
Ampere Rating(In) Type
CatalogNumber
Short DelayPickup RangeAmperes
Figure 35 . Series C Type KDC Circuit Breakers Equipped with Type KES Digitrip RMS 310 Trip Units, Types KES3250LSI, KES3250LSIG
– Legacy Product –
Ir = Continuous Current Setting or Rating Plug Value, Is = Current Sensor Frame Rating, In = Rating Plug Value, Ig = Unit of Ground Current, Ii = Instantaneous Override Pickup .
41
Time Current Curves TD012034ENEffective September 2015
Series CK-Frame
EATON www.eaton.com
6X
8X
4X
7X
2X
Long Delay Minimum TotalClearing Time
Long Delay Maximum TotalClearing Time
Short DelayPickupSettings(Tolerance ±10%)
5X
3X
CURRENT IN MULTIPLES OF RATING PLUG AMPERES (In)
.5
.5
TIM
E IN
SEC
ONDS
10,000
100
50
30
20
10
5
3
2
1
.5
.3
.2
.1
.05
.03
.02
.01
.005
.003
.002
.001
1,000
500
300
200
5,000
3,000
2,000
1 HO
UR1
MIN
UTE
2 HO
URS
201054321.8.6
1.8.6CURRENT IN MULTIPLES OF RATING PLUG AMPERES (In)
.7 .9 6 7 8 9
2010543 62 7 8 9.7 .9
Fixed InstantaneousOverride 3000A Interrupting
RatingDeterminesEnd ofCurve
10,0
00
.1
.01
5000
4000
3000
2000
20,0
00
CURRENT IN AMPS
30,0
00
40,0
00
50,0
00
100,
000
200,
000
600 Vac
480 Vac
240 Vac
.02
.03
.04
.05
SECO
NDS
.001
1.15
Standard Fixed%021 - %011 gulP gnitaR
Figure 26 . Series C Type KDC Circuit Breakers Equipped with Type KES Digitrip RMS 310 Trip Units, Types KES3125LS, KES3125LSG
Digitrip 310 Circuit Breaker Time/Current Curves (Phase Current)
Series C K-Frame Circuit Breakers
Catalog Types: KES3125LS, KES3125LSG Digitrip RMS 310 Trip Units for use with CircuitBreaker Types KDC, 125A . max .
Short Delay
Engaged
Remove
Cat.
In
Digitrip RMS 310 Rating Plug
Push to TripPickup • x Ir
Digitrip RMS 310 Trip Unit40oC
5
73
2 8
4 6
TEST
Fixed Short Delay Time Typical Trip Unit Nameplate
125 Fixed 1KES 125T 250 - 1000110 Fixed 1KES 110T 220 - 880100 Fixed 1KES 100T 200 - 80090 Fixed 1KES 90T 180 - 72070 Fixed 1KES 70T 140 - 56070, 90, 100, 125 Adjustable A1KES 125T1 140- 1000
Ampere Rating(In)
Available Rating Plugs
TypeCatalogNumber
Short DelayPickup RangeAmperes
UL/CSA rms Sym . kA, 50/60 Hz
KDC 200 100 50
240V 480V 600VBreaker Type
IEC 60947-2 rms Sym . kA, 50/60 Hz
KDC 200 100 100
240V 380V 415VBreaker Type
Interrupting Rating
Notes:
Digitrip RMS 310 trip units are suitable for functional field testing with test kit Cat . No . STK2 . For field testing using primary injection methods, follow NEMA publication AB-4 .
There is a memory effect that can act to shorten the long delay . The memory effect comes into play if a current above the long delay pickup value exists for a time and then is cleared by the tripping of a downstream device or the circuit breaker itself . A subsequent overload will cause the circuit breaker to trip in shorter time than normal . The amount of time delay reduction is inverse to the amount of time that has elapsed since the previous overload . Approximately five minutes is required between overloads to completely reset the memory .
1 Curve accuracy applies from –20ºC to +55ºC ambient . For possible continuous ampere derating for ambient above 40ºC, refer to Eaton .
2 For high fault current levels, a fixed instantaneous override is provided at 3000A (Tolerance ±15%) .
3 The end of the curve is determined by the interrupting rating of the circuit breaker . See above tabulation .
4 Long Delay Pickup is 115% of In, +/- 5% .
– Legacy Product –
Ir = Continuous Current Setting or Rating Plug Value, Is = Current Sensor Frame Rating, In = Rating Plug Value, Ig = Unit of Ground Current, Ii = Instantaneous Override Pickup .
42
Time Current Curves TD012034ENEffective September 2015
Series CK-Frame
EATON www.eaton.com
6X
8X
4X
7X
3X
2X
200 ms
100 ms
I
300 ms
5X
.02
.03
.04
.05Fixed InstantaneousOverride 3000A
InterruptingRatingDeterminesEnd ofCurve
10,0
00
.1
.01
5000
4000
3000
2000
20,0
00
.001
SECO
NDS
CURRENT IN AMPS
30,0
00
40,0
00
50,0
00
100,
000
1
200,
000
600 Vac
480 Vac
240 Vac
MaximumInterruptingTime
TIM
E IN
SEC
ONDS
10,000
100
50
30
20
10
5
3
2
1
.5
.3
.2
.1
.05
.03
.02
.01
.005
.003
.002
.001
1,000
500
300
200
5,000
3,000
2,000
1 HO
UR1
MIN
UTE
2 HO
URS
CURRENT IN MULTIPLES OF RATING PLUG AMPERES (In)
.5
.5 201054321.8.6
1.8.6CURRENT IN MULTIPLES OF RATING PLUG AMPERES (In)
.7 .9 6 7 8 9
2010543 62 7 8 9
Short DelayPickupSettings(Tolerance±10%)
Long Delay Minimum TotalClearing Time
Long Delay Maximum TotalClearing Time
.7 .9
1.15
Standard Fixed%021 - %011 gulP gnitaR
Digitrip 310 Circuit Breaker Time/Current Curves (Phase Current)
Series C K-Frame Circuit Breakers
Catalog Types: KES3125LSI, KES3125LSIG Digitrip RMS 310 Trip Units for use with CircuitBreaker Type KDC, 125A . max .
TEST
Short Delay
Engaged
Remove
Cat.
In
Digitrip RMS 310 Rating Plug
Push to TripPickup • x Ir Time • ms
Digitrip RMS 310 Trip Unit40oC
5
73
2 8
4 6300
100
INST
200
Adjustable Short Delay Time Typical Trip Unit Nameplate
125 Fixed 1KES 125T 250 - 1000110 Fixed 1KES 110T 220 - 880100 Fixed 1KES 100T 200 - 80090 Fixed 1KES 90T 180 - 72070 Fixed 1KES 70T 140 - 56070, 90, 100, 125 Adjustable A1KES 125T1 140- 1000
Ampere Rating(In)
Available Rating Plugs
TypeCatalogNumber
Short DelayPickup RangeAmperes
UL/CSA rms Sym . kA, 50/60 Hz
KDC 200 100 50
240V 480V 600VBreaker Type
IEC 60947-2 rms Sym . kA, 50/60 Hz
KDC 200 100 100
240V 380V 415VBreaker Type
Interrupting Rating
Notes:
Digitrip RMS 310 trip units are suitable for functional field testing with test kit Cat . No . STK2 . For field testing using primary injection methods, follow NEMA publication AB-4 .
There is a memory effect that can act to shorten the long delay . The memory effect comes into play if a current above the long delay pickup value exists for a time and then is cleared by the tripping of a downstream device or the circuit breaker itself . A subsequent overload will cause the circuit breaker to trip in shorter time than normal . The amount of time delay reduction is inverse to the amount of time that has elapsed since the previous overload . Approximately five minutes is required between overloads to completely reset the memory .
1 Curve accuracy applies from –20ºC to +55ºC ambient . For possible continuous ampere derating for ambient above 40ºC, refer to Eaton .
2 For high fault current levels, a fixed instantaneous override is provided at 3000A (Tolerance ±15%) .
3 The end of the curve is determined by the interrupting rating of the circuit breaker . See above tabulation .
4 Long Delay Pickup is 115% of In, +/- 5% .
Figure 37 . Series C Type KDC Circuit Breakers Equipped with Type KES Digitrip RMS 310 Trip Units, Types KES3125LSI, KES3125LSIG
– Legacy Product –
Ir = Continuous Current Setting or Rating Plug Value, Is = Current Sensor Frame Rating, In = Rating Plug Value, Ig = Unit of Ground Current, Ii = Instantaneous Override Pickup .
43
Time Current Curves TD012034ENEffective September 2015
Series CK-Frame
EATON www.eaton.com
Ground Fault Pickup Settings(Tolerance ±10% Except ±20% on 1xIG Setting)
3xI G
1
4xI G
2xI G
1xI G
2 3 4 5 6 7 8 9 10 100
GROUND CURRENT-AMPERES
TIM
E IN
SEC
ONDS
10,000
100
50
30
20
10
5
3
2
1
.5
.3
.2
.1
.05
.03
.02
.01
.005
.003
.002
.001
1,000
500
300
200
5,000
3,000
2,000
1 HO
UR1
MIN
UTE
2 HO
URS
8000
GROUND CURRENT-IN MULTIPLES OF Ig = 80A
800
480
400
320
240
160
80 560
640
720
5xI G
500 ms
300 ms
150 ms
I
Digitrip 310 Circuit Breaker Time/Current Curves (Ground Current)
Series C K-Frame Circuit Breakers
Catalog Types: Type Digitrip RMS 310 Trip Unit for use with Circuit Breaker Types KDB,
CKDB, HKDB, CHKDB, KD, HKD, KDC, CKD, and CHKD
For use with Trip Unit Catalog NumbersKES3400LSGKES3400LSIG
TESTEngaged
Remove
Cat.
In
Digitrip RMS 310 Rating Plug
Push to Trip
Digitrip RMS 310 Trip Unit40oC
Ground Fault
Pickup • x Ig Time • ms
Short Delay
Pickup • x Ir5
73
2 8
4 6500
150
INST
3004
2
1
3 5
Ig = 80A
Notes:
Curve accuracy applies from –20ºC to +55ºC ambient . For possible continuous ampere derating for ambient above 40ºC, refer to Eaton .
Digitrip RMS 310 trip units are suitable for functional field testing with test kit Cat . No . STK2 . For field testing using primary injection methods, follow NEMA publication AB-4 .
TESTEngaged
Remove
Cat.
In
Digitrip RMS 310 Rating Plug
Push to Trip
Digitrip RMS 310 Trip Unit40oC
5
73
2 8
4 6
Short Delay
Pickup • x Ir Time • ms
Ground Fault
Pickup • x Ig Time • ms
300
100
INST
200500
150
INST
3004
2
1
3 5
Ig = 80A
Figure 38 . Series C Type KDC Circuit Breakers Equipped with Type KES Digitrip RMS 310 Trip Units, Ground Fault Protection(KES3400LSG, KES3400LSIG)
– Legacy Product –
Ir = Continuous Current Setting or Rating Plug Value, Is = Current Sensor Frame Rating, In = Rating Plug Value, Ig = Unit of Ground Current, Ii = Instantaneous Override Pickup .
44
Time Current Curves TD012034ENEffective September 2015
Series CK-Frame
EATON www.eaton.com
Ground Fault Pickup Settings(Tolerance ±10%Except ±20% on 1xIG Setting)
3xI G
1
4xI G
2xI G
1xI G
2 3 4 5 6 7 8 910 100
GROUND CURRENT-AMPERES
TIM
E IN
SEC
ONDS
10,000
100
50
30
20
10
5
3
2
1
.5
.3
.2
.1
.05
.03
.02
.01
.005
.003
.002
.001
1,000
500
300
200
5,000
3,000
2,000
1 HO
UR1
MIN
UTE
2 HO
URS
5000
GROUND CURRENT-IN MULTIPLES OF Ig = 50A
500
300
250
200
150
100
50 350
400
450
5xI G
I
500 ms
300 ms
150 ms
Digitrip 310 Circuit Breaker Time/Current Curves (Ground Current)
Series C K-Frame Circuit Breakers
Type Digitrip RMS 310 Trip Unit for use with Circuit Breaker Types KDB, CKDB, HKDB, CHKDB
KD, HKD, KDC, CKD, and CHKD
For use with Trip Unit Catalog NumbersKES3250LSGKES3250LSIG
TESTEngaged
Remove
Cat.
In
Digitrip RMS 310 Rating Plug
Push to Trip
Digitrip RMS 310 Trip Unit40oC
Ground Fault
Pickup • x Ig Time • ms
Short Delay
Pickup • x Ir5
73
2 8
4 6500
150
INST
3004
2
1
3 5
Ig = 80A
Notes:
Curve accuracy applies from –20ºC to +55ºC ambient . For possible continuous ampere derating for ambient above 40ºC, refer to Eaton .
Digitrip RMS 310 trip units are suitable for functional field testing with test kit Cat . No . STK2 . For field testing using primary injection methods, follow NEMA publication AB-4 .
TESTEngaged
Remove
Cat.
In
Digitrip RMS 310 Rating Plug
Push to Trip
Digitrip RMS 310 Trip Unit40oC
5
73
2 8
4 6
Short Delay
Pickup • x Ir Time • ms
Ground Fault
Pickup • x Ig Time • ms
300
100
INST
200500
150
INST
3004
2
1
3 5
Ig = 80A
Figure 39 . Series C Type KDC Circuit Breakers Equipped with Type KES Digitrip RMS 310 Trip Units, Ground Fault Protection(KES3250LSG, KES3250LSIG)
– Legacy Product –
Ir = Continuous Current Setting or Rating Plug Value, Is = Current Sensor Frame Rating, In = Rating Plug Value, Ig = Unit of Ground Current, Ii = Instantaneous Override Pickup .
45
Time Current Curves TD012034ENEffective September 2015
Series CK-Frame
EATON www.eaton.com
Ground Fault Pickup Settings(Tolerance ±10% Except ±30% on 2xIG Setting)
3xI G
4xI G
1 2 3 4 5 6 7 8 9 10 100 GROUND CURRENT-IN MULTIPLES OF Ig = 25A
GROUND CURRENT-AMPERES
TIM
E IN
SEC
ONDS
10,000
100
50
30
20
10
5
3
2
1
.5
.3
.2
.1
.05
.03
.02
.01
.005
.003
.002
.001
1,000
500
300
200
5,000
3,000
2,000
1 HO
UR1
MIN
UTE
2 HO
URS
500
250
150
125
100
755025 175
200
225
2xI G
5xI G
I
500 ms
300 ms150 ms
Digitrip 310 Circuit Breaker Time/Current Curves (Ground Current)
Series C K-Frame Circuit Breakers
Type Digitrip RMS 310 Trip Unit for use with Circuit Breaker Types KD, HKD, KDC, CKD,and CHKD
For use with Trip Unit Catalog NumbersKES3125LSGKES3125LSIG
TESTEngaged
Remove
Cat.
In
Digitrip RMS 310 Rating Plug
Push to Trip
Digitrip RMS 310 Trip Unit40oC
Ground Fault
Pickup • x Ir Time • ms
Short Delay
Pickup • x Ir5
73
2 8
4 6500
150
INST
3004
23 5
Ig = 25A
Notes:
Curve accuracy applies from –20ºC to +55ºC ambient . For possible continuousampere derating for ambient above 40ºC, refer to Eaton .
Digitrip RMS 310 trip units are suitable for functional field testing with test kitCat . No . STK2 . For field testing using primary injection methods, follow NEMApublication AB-4 .
Figure 40 . Series C Type KDC Circuit Breakers Equipped with Type KES Digitrip RMS 310 Trip Units, Ground Fault Protection(KES3125LSG, KES3125LSIG)
TESTEngaged
Remove
Cat.
In
Digitrip RMS 310 Rating Plug
Push to Trip
Digitrip RMS 310 Trip Unit40oC
5
73
2 8
4 6
Short Delay
Pickup • x Ir Time • ms
Ground Fault
Pickup • x Ir Time • ms
300
100
INST
200500
150
INST
3004
23 5
Ig = 25A
– Legacy Product –
Ir = Continuous Current Setting or Rating Plug Value, Is = Current Sensor Frame Rating, In = Rating Plug Value, Ig = Unit of Ground Current, Ii = Instantaneous Override Pickup .
46
Time Current Curves TD012034ENEffective September 2015
Series CK-Frame
EATON www.eaton.com
.02
.03
.04
.05
10,0
00
.1
.01
5000
4000
3000
2000
20,0
00
.001
SE
CO
ND
S
30,0
00
40,0
00
50,0
00
100,
000
200,
000
TIM
E IN
SE
CO
ND
S
10,000
100
50
30
20
10
5
3
2
1
.5
.3
.2
.1
.05
.03
.02
.01
.005
.003
.002
.001
1,000
500
300
200
5,000
3,000
2,000
1 H
OU
R1
MIN
UTE
2 H
OU
RS
.5
.5 201054321.8.6
1.8.6
.7 .9 6 7 8 9
2010543 62 7 8 9
.7 .9
Maximum TotalClearing Time
Minimum TotalClearing Time
Standard FixedRating Plug
Fixed InstantaneousOverride 4000A
Maximum InterruptingTime
600 VAC
480 VAC
240 VAC
InterruptingRatingDeterminesEnd of Curve 3
2X
3X
4X
5X
6X
7X8X
Short DelayPick UpSettings(Tolerance +10%)
Current in multiples of rating plug amperes (In)
Current in multiples of rating plug amperes (In)
Current in Amperes
Circuit Breaker Time/Current Curves (Phase Current)
Series C – Type KS Circuit Breakers
Catalog Types: KS3400T, KS3400TG, KS Trip Units for use with Circuit Breaker Type KDC, 400A . max
Short Delay
Engaged
Remove
Cat.
In Push to Trip
Pickup
Trip Unit - Cat. KS3400T - 40 C Ambiento
5
73
2 8
4 6TEST
Fixed Short Delay Time Typical Trip Unit Nameplate
400 Fixed 4KS 400T 800 - 3200350 Fixed 4KS 350T 700 - 2800300 Fixed 4KS 300T 600 - 2400250 Fixed 4KS 250T 500 - 2000225 Fixed 4KS 225T 450 - 2000200 Fixed 4KS 200T 400 - 1600200, 250, 300, 400 Adjustable A4KS 400T1 400 - 3200200, 300, 350, 400 Adjustable A4KS 400T3 500 - 3200
Ampere Rating(In)
Available Rating Plugs
TypeCatalogNumber
Short DelayPickup RangeAmperes
UL/CSA rms Sym . kA, 50/60 Hz
KDC 200 100 50
240V 480V 600VBreaker Type
IEC 60947-2 rms Sym . kA, 50/60 Hz
KDC 200 100 100
240V 380V 415VBreaker Type
Interrupting Rating
1 Curve accuracy applies from –20ºC to +55ºC ambient . For possible continuous ampere derating for ambient above 40ºC, refer to Eaton .
2 For high fault current levels, a fixed instantaneous override is provided at 4000A (Tolerance ±15%) .
3 The end of the curve is determined by the interrupting rating of the circuit breaker . See above tabulation .
4 KS trip units are suitable for functional field testing with test kit Cat . No . STK2 . For field testing using primary injection methods, follow NEMA publication AB-4 .
Figure 41 . KS Electronic Trip Unit Type KDC - Curve Number SC-4156-87A,1987
– Legacy Product –
47
Time Current Curves TD012034ENEffective September 2015
Series CK-Frame
EATON www.eaton.com
Eaton1000 Eaton BoulevardCleveland, OH 44122United StatesEaton .com
© 2014 EatonAll Rights ReservedPrinted in USAPublication No . TD012034EN / KDCApril 2014
Eaton is a registered trademark .
All other trademarks are property of their respective owners .
Series CK-Frame
Time Current Curves TD012034ENEffective September 2015
top related