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Circuit Breakers
MCCB | ELCB | MCB | RCBO
T e c h n i c a l C a t a l o g u e
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general overview ... 2
feature
- company profile ... 6
MCCB
- NF series circuit breaker, double repulsion breaking method ... 7
- double number of copper contacts, materials of the NF series ... 8- method of installation, MCCB cross sectional area,
positive indication & operation ... 9- suitability for isolation, compliance with standards ... 10
- selection | quick & easy selection table ... 11- power distribution | technical details ... 12
- ambient temperature ... 16- characteristic curves | NF series ... 17
- physical dimensions & mounting holes | NF series ... 22- accessories | phase insulation barriers,
electrical accessories & shunt trip ... 30
- accessories | under voltage device ... 31- accessories | signal switches, rotary handle ... 32
- accessories | rotary handle ... 33- mounting position | internal accessory ... 35
- internal resistance & power loss ... 36- short circuit table | DC voltage ... 39
- selection table | motor circuit protection ... 40- motor selection ... 41
- installation safety distance requirement ... 43- terminal-tightening torque ... 44
- terminal-cable & copper busbar connection data ... 45
ELCBs
- EG series | with overload & short circuit protection ... 46
- EG series | operating characteristics & dimensions ... 48
MCBs
- BHQ series | fixed type ... 52- BHP series | plug-in type ... 53
- BHQ & BHP | operating characteristics & dimensions ... 54
RCBOs
- EQ series | fixed type ... 56
- EP series | plug-in type ... 57- EQ & EP series | dimensions & operating characteristics ... 58
ordering codes ... 60
contents
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M C C B
g e n e r a l o v e r v i e w
NF series
2
The NF series MCCBs are available from 50AF to 1200AF.
Pole sizes from 1 to 4 are available for the various models.
All NF series MCCBs are suitable for isolation.
250AF
NF-250GP NF-250MANF-250HA NF-250L
10kA (3P)25kA (1P to 4P)50kA (1P to 4P)65kA (3P)
50AF
NF-50MA
10kA (2P & 3P)
100AF
NF-100GP NF-100MANF-100HA NF-100L
10kA (2P & 3P)
25kA (1P to 4P)50kA (1P to 4P)65kA (3P)
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3
400AF
NF-400GP NF-400LNF-400HA
25kA (3P & 4P)50kA (3P & 4P)65kA (3P)
600AF & 800AF
NF-600GP NF-800GPNF-600HA NF-800HANF-600L NF-800L
25kA (3P & 4P)
50kA (3P & 4P)65kA (3P)
1200AF
NF-1200HA
50kA (3P & 4P)
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g e n e r a l o v e r v i e w
ELCB: EG series | with overload & short circuit protection
4
100AF
EG-100MA EG-100HA
25kA (3P & 4P)
50kA (3P & 4P)
250AF
EG-250MA EG-250HA
25kA (3P & 4P)
50kA (3P & 4P)
Accessories
shunt trip under voltage trip signaling switches rotary handle
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100AF
BHP-1
6kA (1P)
100AF
BHP-2
6kA (2P)
100AF
BHP-3
6kA (3P)
100AF
BHQ-1
6kA (1P)
100AF
BHQ-2
6kA (2P)
100AF
BHQ-3
6kA (3P)
5
MCB: BHQ & BHP series
RCBO: EQ & EP series | with overload &short circuit protection
50AF
EP-1
10kA (1P)
50AF
EP-2
10kA (2P)
50AF
EP-3
10kA (3P)
50AF
EQ-1
10kA (1P)
50AF
EQ-2
10kA (2P)
50AF
EQ-3
10kA (3P)
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company profile
Since our inception in 1974, our company specializes in manufacturing low
voltage circuit breakers and have a reputation of producing products of
consistent quality and high reliability.
Our manufacturing facilities are certified to the international quality standards of
ISO 9001, while our products are certified by ASTA Certification Services UK.
With such high standards, our range of circuit breakers are able to meet your
highest demands for quality, safety and reliability.
f e a t u r e
6
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NF series circuit breakers
The demand for economical and high performance circuit
breakers is ever increasing in the global market. The NF
series circuit breakers provide a simple and reliable
solution to meet this global demand where quality,
performance and compliance are required.
The NF series circuit breakers have been engineeredto provide effective protection to low voltage power
distribution systems. The NF series is a complete range
of MCCBs from 10A to 1200A with 1, 2, 3 and 4 pole
versions. An extensive range of electrical accessories is
also available.
double repulsion breaking method
The double repulsion method uses areverse-loop of current (I) flowing in
essentially opposite directions (see figure).
This creates a repulsion action and results
in a greater opening force (Fm) between
the fixed and moving contacts. This force
also assists to rapidly extinguish the arc,
thereby causing the moving contacts to
open faster. A faster breaking time is
achieved with this design.
7
Fm Fmopening
moving contacts
fixed contact
M C C B
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M C C B
double number of contact coppers
For the NF600 and above circuit breakers,
double moving contacts are used instead
of a single contact. This additional moving
contact improves the short circuit breaking
performance and reduces contact wear.
materials of the NF series
8
The design of the NF series circuit breakers makes itsuitable to be used in hot and humid climates. The
material used for the circuit breaker casing
consists of synthetic resins reinforced with
glass fibers. Furthermore, the metal parts
used in the breakers are chemically treated
to protect against corrosion. The external
copper terminals are tin-plated to prevent
oxidation.
double moving
contacts in NF1200
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method of installation
The NF series circuit breakers
can be installed in vertical or
horizontal position without any
impact on its performance or
de-rating of characteristics.
MCCB cross sectional area
positive indication & operation
9
horizontal vertical
The circuit breaker operating handle is designed to indicate the exact position of
its moving contacts. Its trip-free operating mechanism cannot indicate that the
breaker is ON if the moving contacts are in the OFF position. If the breaker trips
due to an electrical fault or overload the handle will be in between the ON and
OFF position. This is the TRIP position. To switch the breaker ON after tripping,
the handle position must be switched toOFF
position first and so to reset thebreaker and then switch to the ON position.
BA
FD E
C
Parts Index for cross-sectional area of MCCB
A MCCB casing made of high-impact BMC material reinforced with
glass fibres, providing a safe and strong housing in the event of
breaking high-fault currents.
B Trip-free mechanism ensuring positive operation and isolation
suitability. Designed for long service life and high number of
operating cycles. Metal parts in mechanism are chemically treated to
withstand harsh tropical weather conditions.C Arc chutes with predefined steel plates arrangement, provide high
breaking capabilities.
D Fixed and moving contacts utilizing the reverse loop current
method, creates a repulsion force thus rapidly extinguishing the arc.
E Common trip mechanism to ensure breaking of all poles even when
the fault occurs at a particular pole.
F Trip release consists of thermal (bi-metal) and magnetic devices
suitable for use in AC or DC supply voltages.
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M C C B
suitability for isolation
In compliance with IEC 60947-2 standard, NF series
circuit breaker guarantees no leakage currents and over-
voltage withstand between the supply and load terminals
when its moving contacts are in the open position.
compliance with standards
10
The NF series circuit breakers have been designedto meet international standards, complying with the
following standards:
1. IEC 60947-2: International Electro Committee
Standard
2. BSEN 60947-2: British Standard European Norm
3. JIS C 8201-2: Japan Industrial Standard
4. GB 14048-2: China Standard
5. CNS 14816-2: Taiwan Standard
6. CE: Conformity European
test trip button isolation
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selection | quick & easy table
65502510
NF-50MA
NF-100GP
NF-100MA NF-100LNF-100HA
NF-100GP
NF-250GP NF-250MA NF 250HA NF-250L
NF-400GP NF-400HA NF-400L
NF-600GP NF-600HA NF-600L
NF-800GP NF-800HA NF-800L
NF-1200HA
RatedCurrent
In (A)
10
15
20
30
40
50
60
75
80
100
125
150
160
175
200
225
250
250
300
350
400
500
600
700
800
1000
1200
Interrupting Capacity Icu (kA) Sym at 415 Vac
11
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Rated Short CircuitBreaking Capacity: (kA)
Rated Service Short CircuitBreaking Capacity: I cs = % I cu
600V
DC
400V
500V
440V
415V
380V
230V
IEC 60947-2
M C C B
p o w e r d i s t r i b u t i o n
12
technical details | electrical characteristicsNF-100NF-50
50AF 100AF
NF-250
250AF
10 15 2030 40 50
2 3
600
8
MA
5
7.510
10
10
15
25
5
50
7.5
10
15
25
5
A
2
20000
model Code
Ampere Frame (AF)
Rated Current: In (A)at Ambient Temp 50C
Number of Poles Available
Rated Insulation Voltage: U i(V)
Rated Impulse withstandVoltage: U imp (kV)
Rated Ultimate Short CircuitBreaking Capacity: I cu (kA)
10 15 20 30 4050 60 75 80 100
1 2 3 4
690
8 8 8 8
GP MA HA L
5 10 10 35
7.5 15 40 5010 25 50 65
10 25 50 65
10 25 50 65
15 30 60 100
25 50 85 125
5 10 20 40
50 50 50 50
690
8 8 8 8
GP MA HA L
5 10 10 35
7.5 15 40 5010 25 50 65
10 25 50 65
10 25 50 65
15 30 60 100
25 50 85 125
5 10 20 40
50 50 50 50
7.5 10 30 50
10 22 50 65
15 30 50 100
25 50 85 125
7.5 10 30 50
10 22 50 65
15 30 50 100
25 50 85 125
5 10 20 40
A A A A
2 2 2 2
15000
125 150 160 175200 225 250
3 4
5 10 20 40
A A A A
2 2 2 2
15000
690V
250V
Suitable for Isolation
Utilization Category
Pollution Degree
No. of Electrical Operations
440V
380V
220V
JIS C 8201-2(sym)
DC
250V
Notes: - denotes available.
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Notes: - denotes available.
Rated Short CircuitBreaking Capacity:(kA)
Rated Service Short CircuitBreaking Capacity: I cs = % I cu
600V
DC
400V
500V
440V
415V
380V
230V
IEC 60947-2
13
technical details | electrical characteristicsNF-600 & NF-800NF-400
400AF 800AF
NF-1200
1200AF
1000 1200
3 4
690
8
HA
10
4050
50
50
60
85
40
50
30
50
50
85
40
A
3
8000
model Code
Ampere Frame (AF)
Rated Current: In (A)at Ambient Temp 50C
Number of Poles Available
Rated Insulation Voltage: U i(V)
Rated Impulse withstandVoltage: U imp (kV)
Rated Ultimate Short CircuitBreaking Capacity: I cu (kA)
250 300350 400
3 4
690
8 8 8
GP HA L
10 10 35
22 40 5025 50 65
25 50 65
25 50 65
30 60 100
50 85 125
20 40 40
50 50 50
690
8 8 8
GP HA L
10 10 35
22 40 5025 50 65
25 50 65
25 50 65
30 60 100
50 85 125
20 40 40
50 50 50
18 30 50
25 50 65
30 50 100
50 85 125
18 30 50
25 50 65
30 50 100
50 85 125
20 40 40
A A A
3 3 3
11000
500 600700 800
3 4
20 40 40
A A A
3 3 3
11000
690V
250V
Suitable for Isolation
Utilization Category
Pollution Degree
No. of Electrical Operations
440V
380V
220V
JIS C 8201-2(sym)
DC
250V
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mechanical characteristics
M C C B
p o w e r d i s t r i b u t i o n
14
technical details
NF-100NF-50
50AF 100AF
NF-250
250AF
model Code
Ampere Frame (AF)
Fixed thermal,Fixed Magnetic 10 x Ith
Fixed thermal,
Adjustable Magnetic
thermomagnetic trip release
MARated Ultimate Short Circuit
Breaking Capacity: I cu (kA)GP MA HA L GP MA HA L
1 2 3 42 3
50 75
130 130
68 68
90 90
110 110
25
42 60 90 120
155 155 155 155
68 68 68(80) 68
90 90 90(102) 90
132 132 132 132
29.5 30 30
1 3 4
48 105 140
165 165 165
68 68(80) 68
92 92(104) 92
126 126 126
35 35 35
M5 clampterminal screw
25000
Number of Poles (P)
Type of Terminals
No of Mechanical Operations
M8 screw
20000
M8 screw
20000
0.4 0.5Weight (kg) 0.5 0.7 1.0(1.2) 1.4 0.7 1.5(1.6) 1.9
Shunt Trip Device
Under Voltage Trip Device
Auxiliary Switch
Alarm Switch
Auxiliary + Alarm Switch
Rotary Handle
accessories
Notes: All L-type breakers are only available in the 3-pole version; ( ) denotes for L-type.
- denotes available; however, all accessories are not available for 1-pole models.
aa
a
b
c
ca
bb
ON
OFF
a
aa
ca
bbb
c
(mm)
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mechanical characteristics
15
technical details
NF-600 & NF-800NF-400
400AF 800AF
NF-1200
1200AF
model Code
Ampere Frame (AF)
Fixed thermal,Fixed Magnetic 10 x Ith
Fixed thermal,
Adjustable Magnetic
thermomagnetic trip release
GP HA LRated Ultimate Short CircuitBreaking Capacity: I imp (kA)
GP HA L HA
Shunt Trip Device
Under Voltage Trip Device
Auxiliary Switch
Alarm Switch
Auxiliary + Alarm Switch
Rotary Handle
accessories
Notes: All L-type breakers are only available in the 3-pole version; ( ) denotes for L-type.
- denotes available.
25000No of Mechanical Operations 20000 20000
5.5(6.0) 7.2Weight (kg) 10.0(11) 12.0 15.0 19.0
3 43 4
140 196
257 257
103 103
155 155
194 194
44 44
210 280
275 275
103 103
155 155
243 243
70 70
3 4
210 280
400 400
103 103
155 155
370 370
70 70
M12 Bolt
Number of Poles (P)
Type of Terminals M12 Bolt M12 Bolt
aa
a
b
c
ca
bb
ON
OFF
a
aa
ca
bbb
c
(mm)
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10
15
20
30
40
50
60
75
80
100
125
150
160
175
200
225
250
300
350
400
500
600
700
800
1000
1200
M C C B
a m b i e n t t e m p e r a t u r e
The NF series circuit breakers are able to operate in temperatures between 25 to 70C. The nominal current
of circuit breakers are rated 100% at 50C. Please refer to the table below for temperature derating.
1-Pole, 2-Pole, 3-Pole and 4-Pole
30C25C 40C35C 50C45C 60C55C 70C65CIn (A)
11.2 10.9
16.8 16.4
22.4 21.8
33.6 32.7
42.2 41.8
52.8 52.3
63.3 62.7
79.1 78.4
84.4 83.6
105.5 104.5
138.1 136.3
165.8 163.5
176.8 174.4
193.4 190.8
221.0 218.0
248.6 245.3
282.5 275.0
339.0 330.0
395.5 385.0
452.0 440.0
557.5 547.5
669.0 657.0
763.0 749.0
872.0 856.0
1110.0 1090.0
1308.0 1272.0
10.8 10.5
16.2 15.8
21.6 21.0
32.4 31.5
41.4 41.0
51.8 51.3
62.1 61.5
77.6 76.9
82.8 82.0
103.5 102.5
134.4 131.3
161.3 157.5
172.0 168.0
188.1 183.8
215.0 210.0
241.9 236.3
270.0 262.5
324.0 315.0
378.0 367.5
432.0 420.0
537.5 522.5
645.0 627.0
735.0 728.0
840.0 832.0
1070.0 1045.0
1260.0 1248.0
10.3 10.0
15.5 15.0
20.6 20.0
30.9 30.0
40.4 40.0
50.5 50.0
60.6 60.0
75.8 75.0
80.8 80.0
101.0 100.0
128.8 125.0
154.5 150.0
164.8 160.0
180.3 175.0
206.0 200.0
231.8 225.0
257.5 250.0
309.0 300.0
360.5 350.0
412.0 400.0
512.5 500.0
615.0 600.0
714.0 700.0
816.0 800.0
1025.0 1000.0
1224.0 1200.0
9.8 9.6
14.7 14.4
19.6 19.2
29.4 28.8
38.4 37.2
48.0 46.5
57.6 55.8
72.0 69.8
76.8 74.4
96.0 93.0
122.5 118.8
147.0 142.5
156.8 152.0
171.5 166.3
196.0 190.0
220.5 213.8
243.8 236.3
292.5 283.5
341.3 330.8
390.0 378.0
485.0 475.0
582.0 570.0
686.0 672.0
784.0 768.0
970.0 945.0
1176.0 1140.0
9.4 9.2
14.1 13.8
18.8 18.4
28.2 27.6
36.6 36.0
45.8 45.0
54.9 54.0
68.6 67.5
73.2 72.0
91.5 90.0
116.3 111.3
139.5 133.5
148.8 142.4
162.8 155.8
186.0 178.0
209.3 200.3
231.3 222.5
277.5 267.0
323.8 311.5
370.0 356.0
465.0 450.0
558.0 540.0
658.0 644.0
752.0 736.0
920.0 900.0
1128.0 1104.0
16
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tripping curve temperature characteristic
tripping curve temperature characteristic
NF-50MA | characteristic curves
4hr
2hr
1hr
30min20min14min10min6min4min
2min
1min
30sec20sec
10sec
5sec
2sec
1sec
0.5sec
0.2sec
0.1sec
0.05sec
0.02sec
0.01sec
Opera
tingtime
x 100% of rated current
1 1.3 2 3 4 5 6 7 10 15 20 30 40
Operating Characteristics
Frame size: 50AF
10A 15A 20A 30A 40A 50A
Max
Min
300250
200
150
1008070
10 20 30 40 50 60
Operatingtime
Currentrating(%)
Ambient temperature ( C)
Rated ambient 50 C
Ratedambient
4hr
2hr
1hr
30min20min14min10min6min4min
2min
1min
30sec20sec
10sec
5sec
2sec
1sec
0.5sec
0.2sec
0.1sec
0.05sec
0.02sec
0.01sec
Operatingtime
x 100% of rated current
1 1.3 2 3 4 5 6 7 10 15 20 30 40
Operating Characteristics
Frame size: 100AF
10A 15A 20A 30A 40A
50A 60A 75A 80A 100A
Max
Min
Time delay tr ip I nst an tane ous tr ip
130
120
110
90
100
10 20 30 40 50 6080
Rated ambient 50 C
Currentrating
(%)
Ambient temperature ( C)
Ratedambient
10A~30A
40A~100A
NF-100GP, MA & HA | characteristic curves
17
M C C B
c h a r a c t e r i s t i c s
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NF-250GP, MA & HA | characteristic curves
NF-400GP & HA | characteristic curves
18
M C C B
c h a r a c t e r i s t i c s
4hr
2hr
1hr
30min20min14min10min6min4min
2min
1min
30sec20sec
10sec
5sec
2sec
1sec
0.5sec
0.2sec
0.1sec
0.05sec
0.02sec
0.01sec
Opera
tingtime
x 100% of rated current
1 1.3 2 3 4 5 6 7 10 15 20 30 40
Operating Characteristics
Frame size: 250AF
125A 150A 160A 175A
200A 225A 250A
Max
Min
Time delay tr ip I ns tant aneous t ri p
Max. Total
interrupting time
130
120
110
100
90
10 20 30 40 50 60 7080
Rated ambient 50 C
Currentrating(%)
Ambient temperature ( C)
Ratedambient
4hr
2hr
1hr
30min20min14min10min6min4min
2min
1min
30sec20sec
10sec
5sec
2sec
1sec
0.5sec
0.2sec
0.1sec
0.05sec
0.02sec
0.01sec
Operatingtime
x 100% of rated current
1 1.3 2 3 4 5 6 7 10 15 20 30 40
Operating Characteristics
Frame size: 400AF
250A 300A 350A 400A
Max
Min
Max. Total
interrupting time
Time delay tr ip I nst an tane ous tr ip
130
120
110
90
100
10 20 30 40 50 60 7080
Rated ambient 50 C
Currentrating(%)
Ambient temperature ( C)
Ratedambient
tripping curve temperature characteristic
tripping curve temperature characteristic
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19
NF-600/800GP & HA | characteristic curves
NF-1200HA | characteristic curves
4hr
2hr
1hr
30min20min14min10min6min4min
2min
1min
30sec20sec
10sec
5sec
2sec
1sec
0.5sec
0.2sec
0.1sec
0.05sec
0.02sec
0.01sec
Opera
tingtime
100% of rated current
1 1.3 2 3 4 5 6 7 10 15 20 30 40
Max
Min
Operating Characteristics
Frame size: 600AFrame size: 800A
500A 600A 700A 800A
Time delay trip Instantaneous trip
800AF
600AF
Max. Total
interrupting time
tripping curve
130
120
110
100
90
10 20 30 40 50 60 7080
Rated ambient 50 C
Currentrating(%)
Ambient temperature ( C)
Ratedambient
600AF
800AF
temperature characteristic
240
120
60
20
106
4
2
140
20
10
64
2
1
0.60.4
0.2
0.10.06
0.02
0.01
Operatingtime
Multiple of rated current
1.5 2 3 4 5 6 7 8 10 15 20 30 4 0 50 80 100
Second
Minute
InItr
Low High
1000A 3000A25%
In: Rated current(A)Itr: Instantaneous
trip current
3600A25%
6000A10%
7200A10%1200A
Mix: value
Max: value
Adjustable
Instantaneoustripping
setting range
Max total fault
clearing time
tripping curve
130
120
110
100
90
10 20 30 40 50 60 7080
Rated ambient 50 C
Currentrating(%)
Ambient temperature ( C)
R
atedambient
1000AF
1200AF
temperature characteristic
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NF-100L | characteristic curves
4hr
2hr
1hr
30min20min14min10min6min4min
2min
1min
30sec20sec
10sec
5sec
2sec
1sec
0.5sec
0.2sec
0.1sec
0.05sec
0.02sec
0.01sec
Opera
tingtime
x 100% of rated current
1 1.3 2 3 4 5 6 7 10 15 20 30 40
Max
Min
Operating Characteristics
Frame size: 100AF
10A 15A 20A 30A 40A
50A 60A 75A 80A 100A
Time delay t ri p I ns tant aneo us t ri p
NF-250L | characteristic curves
4hr
2hr
1hr
30min20min14min10min6min4min
2min
1min
30sec20sec
10sec
5sec
2sec
1sec
0.5sec
0.2sec
0.1sec
0.05sec
0.02sec
0.01sec
Operatingtime
x 100% of rated current
1 1.3 2 3 4 5 6 7 10 15 20 30 40
Max
Min
Operating Characteristics
Frame size: 250AF
125A 150A 160A 175A
200A 225A 250A
Max. Total
interrupting time
Time delay t ri p I nst an tane ous tr ip
tripping curve
tripping curve
20
M C C B
c h a r a c t e r i s t i c s
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21
NF-400L | characteristic curves
NF-600L, 800L | characteristic curves
4hr
2hr
1hr
30min20min14min10min6min4min
2min
1min
30sec20sec
10sec
5sec
2sec
1sec
0.5sec
0.2sec
0.1sec
0.05sec
0.02sec
0.01sec
Opera
tingtime
x 100% of rated current
1 1.3 2 3 4 5 6 7 10 15 20 30 40
Max
Min
Operating Characteristics
Frame size: 400AF
250A 300A 350 400A
LtrIn
250A
300A
350A
400A
175025%
210025%
245025%
280025%
400010%
480010%
560010%
640010%
Lo Hi
Adjustment
range 400AF Max. Total
interrupting time
Time delay t ri p I nst an taneo us t ri p
tripping curve
4hr
2hr
1hr
30min20min14min10min6min4min
2min
1min
30sec20sec
10sec
5sec
2sec
1sec
0.5sec
0.2sec
0.1sec
0.05sec
0.02sec
0.01sec
Operatingtime
x 100% of rated current
1 1.3 2 3 4 5 6 7 10 15 20 30 40
Max
Min
Operating Characteristics
Frame size: 600AFFrame size: 800AF
500A 600A 700A 800A
Inst. trip adjustment
range (4 steps)
Controlsetting
600
Lo2
3HiLo23Hi
500100800
11001400280350100550750950280
800
Inst tripcurrent(%)
600AF 800AF
Adjustment
range 800AF
Adjustment
range 600AF
Max. Total
interrupting time
Time delay trip Instantaneous trip
tripping curve
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NF-50MA | front connection
22
M C C B p h y s i c a l d i m e n s i o n s
& m o u n t i n g h o l e s
CLCL
CL
50
22
75
25
50
130
110
50
Mounting hole
Trip button
Insulation barrier (removable)
84
4
.5
50
4 72
90
68
61
27
Screw24
8.
5
110 R
1
52
CLCL
CL
2522.5
50 70M4 Screw
or 5mm
CL CL
CL
BreakerBreaker
2-pole 3-pole
2-pole 3-pole
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NF-100GP, MA & HA | front connection
23
CL
CLCL
CL
60
22
90
30
50
155
134
60
Mounting hole
Tripbutton
Insulation barrier
(removable)
Neutral pole
30
90
120
50
155
134
102
4.5
50
4 72
90
68
61
27
Screw24
8.
5
N
R1 5
2
CLCL
CL
3028
57M4 Screw
or 5mm
132
CL
30
CL CL
CL
Breaker Breaker
86
Breaker
2-pole 3-pole
2-pole 3-pole
4-pole
4-pole
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24
NF-250GP, MA & HA | front connection
M C C B p h y s i c a l d i m e n s i o n s
& m o u n t i n g h o l e s
CL
CL
N
70
100
120
4.5
50
144
165
100
30
105
1404 72
92
68
61
45
Screw
22
105
Mounting
hole
Trip
button
Insulation
barrier
(removable)
Neutral
pole
24
8.5
CL CL CL
126
52
35100
32.5
Breaker
35
R1CL
M4 Screw
or 5mm
Breaker
3-pole
3-pole
4-pole
4-pole
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25
NF-400GP & HA | front connection
CL
CL
14
M12 bolt
Neutral pole
Mounting
hole
Trip
button
Insulation barrier
(removable)Conductor
110
51
112
140
1
02
39
39
5 107
155
103
97
44
44
94.5
8
CL
CL 28
185
196
56
168
2
57
43
16
N
12.5
47
7
CL CL
CLCL
M6 screw
or 7mm
Breaker
4444
194 CL
CL
Breaker
118
R692
3-pole 4-pole
3-pole
4-pole
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NF-600/800GP & HA | front connection
26
M C C B p h y s i c a l d i m e n s i o n s
& m o u n t i n g h o l e s
Mounting hole
Trip button
Insulation barrier
(removable)
110
32
32
32
15
70
210
280
87
87
102
14
8
275
14
40
140
210
CL CL
CL
14
M12bolt
Neutral
pole
N
600A frame 8
800A frame 12
600A frame 44
800A frame 46
600A frame 8
15
5
94.5
97
103
107
155
800A frame 12
600A frame 14
800A frame 46
Conductor
243
92
70
CL CL
CLCL
CLCL
Breaker
Breaker
70
R6
51
172
M6 Screw
or 7mm
3-pole 4-pole
3-pole
4-pole
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NF-1200HA | front connection
27
Mounting hole
Trip
button
Insulation barrier
(removable)
110
32
32
20
70
210
280
87
87
102
14
8
400
14
40
140
210
CL CL
CL
14
M12bolt
Neutral
pole
N
17
46
15
5
94.5
97
103
107
155
17
46
Conductor
40
370
92
70
CL CL
CLCL
CLCL
Breaker
Breaker
70
R6
51
172
M6 Screw
or 7mm
3-pole
4-pole
3-pole 4-pole
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28
NF-100L | front connection
NF-250L | front connection
CL
60
134
132
155
50
22
90
Mounting hole
Trip button
Insulation barrier
(removable)
102
4.5
50
4 84
102
80
73
27
Screw24
8.5
CL CL
52
86
30
M4 Screw
or 5mm
R1
Breaker
CL
70
1
44
1
65
100
22
105
Mounting hole
Trip button
Insulation barrier
(removable)
1
02
4.5
5
0
4 84
104
80
73
45
Screw24
8.5
126
CL CL
52
100
35
R1
M4 Screw
or 5mm
Breaker
M C C B p h y s i c a l d i m e n s i o n s
& m o u n t i n g h o l e s
3-pole
3-pole
3-pole
3-pole
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NF-400L | front connection
NF-600/800L | front connection
CLCL CL
CL
CLCL
14
M12 bolt
M6 Screw
or 7mm
Mounting
hole
Trip
button
Insulation barrier
(removable)
Conductor
Breaker110
51
28
112
140
44118
R6
257
102
39
92
39
5 107
155
103
97
44
44
94.5
8
194
43
16
12.5
7
47
Mounting hole
Trip
button
Insulation barrier
(removable)
110
87
275
32
15
243
92
87
14
40
140
210
CL
CL 102
14
8
600A frame 8
800A frame 12
600A frame 44
800A frame 46
600A frame 8
15
5
94.5
97
103
107
155
800A frame 12
600A frame 14
800A frame 46
Conductor
70
CL
CL CL
CLBreaker
R6
172M6 Screw
or 7mm
29
3-pole
3-pole
3-pole
3-pole
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phase insulation barriers
Inter phase barriers are provided as standard. The use
of the inter phase barriers is
necessary to increase the
clearance distances between
phases to prevent electrical
faults during the operation
of the circuit breaker.
electrical accessories & shunt trip
All electrical accessories supplied for the breaker are pre-
wired. Accessories such as Shunt Trip, Under Voltage Trip,
Alarm Switch, Auxiliary Switch and combination Alarm and
Auxiliary Switch can be fitted into the breaker accessory
compartments. Please refer to the table in page 31 for the
accessories installation guide.
Shunt Trip Device
The Shunt Trip device opens the circuit breaker by means
of an electrical signal. Voltages between 70% and 110% of
the coil voltage rating will operate the shunt trip device.
All Shunt Trip devices are factory fitted with a cut-off
supply switch.30
M C C B
a c c e s s o r i e s
baModel
NF-50 59 59
NF-100 59 59
NF-250 62 100
NF-400 95 116
NF-600 95 116
NF-800 top95 116
NF-1200 95 116
a
bdimensions of phase
barrier insulators in mm
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< 15 < 15 < 15 8 to 15 8 to 15 8 to 15
under voltage trip device
31
The Under Voltage Trip device will open the circuit breaker contacts when the supply
voltage to the coil drops below 70% of its voltage rating.
After tripping, the circuit breaker can be closed manually
again when the supply voltage is 85% of its coil voltage
rating or more.
The Under Voltage Trip device is always energized duringnormal conditions when supply voltage is healthy.
NF-1200NF-600NF-400NF-250NF-100NF-50
Coil Power Consumption (VA)50 / 60 Hz
Coil Voltage
200 200120 20 (100V)
50 (200V)
120 120
200 200
200 200
120 (330V)
170 (450V)
200
10
8 to 15
NF-800
200
200
200
200
10 70
120
10
120 120
50
AC 110 - 240
AC 100 - 450
AC 200 - 240
AC 380 - 450
AC 380 - 550
DC 100 - 125
AC Coil Voltage Consump (VA) Trip Time (ms)Model
5 < 30
5 5 to 30
380-415 440-480
400-440
100-110 200-220
100-110 200-220
5 5 to 30
5 6 to 35
400-440
380-450
100-110 200-220
100-120 200-240
NF-250 & below
NF-400
NF-800
NF-1200
Trip Time (ms)
Note: Other voltages can be supplied on demand.
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signaling switches
The Signaling switches allow the breaker
status information to be obtained remotely.
The signaling switch consists of several dry
contacts with both normally open (N.O.) and
normally closed (N.C.) positions.
Auxiliary Switch - Provides breaker ON and
OFF status information.
Alarm Switch - Provides breaker TRIP status
information.
Auxiliary + Alarm Switch - Provides breaker
ON, OFF and TRIP status information.
rotary handle | mechanism
32
M C C B
a c c e s s o r i e s
The breaker mounted rotary handle mechanism allows the user to easily switch thebreaker ON by a rotating action.
The rotary handle mechanism is equipped with a safety device that prevents the
panel door from being open when the breaker is in ON position. A bypass screw is
provided for manual intervention when breaker is in ON position.
Pad locking facility is available on the rotary handle. The handle can be pad locked
when the breaker is in OFF position.
Please refer to the above
circuit diagram for the switch
terminal codes in order to
obtain different contact
positions, such as N.O. and
N.C. to suit the application.
Auxiliary Switch
Alarm Switch
AXa
AXbAXc
ALa
ALbALc
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DrillingPlan
ExternalDimensions
Figure Dimensions (mm)Mounting
ScrewsType Breaker Type
Noof
Pole
a
b
c
d
e
e
A B C D
95
105
117
107
119
183
25
30
44
70
111
132
(116)
35126
(145)
194
243
M4 x 0.7
screw
or 5
M6
screwor 7
(X)
breakersmounting
screws (2pcs)
(Y) operating
handle
mounting
screws (2pcs)
(X) (Y)
breakers
mounting
screws (4pcs)
AC-NF-RHN0
AC-NF-RHN1
AC-NF-RHN2
AC-NF-RHN3
AC-NF-RHN4
NF-50MA
NF-100GP MA HA
NF-100L
EG-100MA HA
NF-250GP MA HA
NF-250L
EG-250MA HA
NF-400GP HA L
NF-600GP HA LNF-800GP HA L
NF-1200HA
3P
3P
4P
3P
4P
3P 4P
3P
4P
rotary handle | external dimensions
104
45
104
Panel thickness1.2~3.2
A 2
150
50
20
150
130
Panel thickness
Extension handle
(option)
1.2~3.2A 2
rotary handle | drilling plan
78
78
F
Center of breaker
112
1
12
F
Center of breakerbreaker
DB
C
(x) (Y)
(Y) (X)
90
11
8
CL CL
33
Figure (a)
Figure (c) Figure (d) Figure (e)
Note All rotary handles are supplied with M4 x 0.7 screws and self-tapping 5mm screws.
Figure (b)
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rotary handle | appearance
M C C B
a c c e s s o r i e s
34
A direct rotating operating handle has a standard safety device which prevents the
breaker from closing as long as the cover is open. It indicates the tripping of the
breaker even in ON-lock position, but only in cases when a single padlock (35mm)
is used. The degree of protection, in accordance with IEC529, is IP3X (or IP5X with
provision of dustproof packing).
The use of the
rotary handle
mechanism
increases the IP
rating of the breaker
The figure above shows the relationship
between the hinge and breaker viewed
from the load side of the breaker.
X1 X2
H H
Right hingeLeft hinge
Front panel
Operating handle
Breaker
Left hingeX1
Left hingeH
Center of hinge & Breaker
Type
0 or more(5H + 100)
or more
0 or more(8H + 100)
or more
Right hingeX2
Right hingeH
Less than 10
10 or more
170 or more
(5H + 120) or more
0 or more (4H + 70) or more
AC-NF-RHN0 to
AC-NF-RHN2
AC-NF-RHN3 to
AC-NF-RHN4
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M C C B
35
mounting position | internal accessory
NF-1200HA
NF-600/800GP HA L
NF-400GP HA L
NF-250GP MA HA L
NF-100GP MA HA L
NF-50MA
MCCB models
Accessories
R1 & 2 R1 & 2
R1 & 2 R1 & 2
R1 & 2 R1 & 2
R1 & 2 R1 & 2
R1 & 2 R1 & 2
R1 & 2 R1 & 2
L1, L2, L3 L1, L2, L3
L1, L2, L3 L1, L2, L3
L1, L2, L3 L1, L2, L3
L1 & L2 L1, L2
L1 & L2 L1, L2
L1 & L2 L1, L2
L1 & L2
L1 & L2
L1 & L2
L1 & L2
L1 & L2 L1 & L2
Shunt TripCoil
(STC)
Under VoltageTrip (UVT)
Auxiliary Switch(AUS)
Alarm Switch(ALS)
Auxiliary +Alarm Switch
(AAS)
Notes
1) It is NOT possible to install both UVT and STC in the same MCCB.
2) For NF600 onwards, it is possible to install up to a maximum of 4 Auxiliary. Switches or 2 Alarm switches.
3) UVT requires a voltage module that is installed on the right side lead wire terminal.
L R
MCCBfront view
L = Left compartment; R = Right Compartment
Accessory compartment
slot markings
1234
4321
right side
left side
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NF-250MA
LossW
Resistance
u
NF-100MA
LossW
Resistance
u
8700
6200
3570
1980
1480
1.6 7200 0.7
2.0 6700 1.5
2.5 6000 2.4
3.2 3100 2.8
3.4 1990 3.1
3.7 1480
1200
1100
980
770
3.7
4.3
6.2
6.5
7.7
575 9.0
11.8
12.1
14.6
16.9
525
395
365
335
NF-800GP
internal resistance & power loss
LossW
Resistance
u
NF-600GP
LossW
Resistance
u
NF-400GP
LossW
Resistance
u
NF-250GP
LossW
Resistance
u
NF-100GP
LossW
Resistance
u
NF-50MA
Resistance
uLossW
Type
In A
10A 60000 6.0
58000 1.3
45000 1.8
32000 2.9
19000 3.0
1650
1175
1120
1010
820
4.1
4.2
6.3
7.1
8.2
450 7.0
9.0
10.7
12.4
13.2
196 12.3
162 14.6
148 18.1
120 19.2
100
90
25.0
32.4
70
60
34.3
38.4
400
350
310
260
15A
20A
30A
40A
50A
60A
75A
80A
100A
125A
150A
10.94259.7380160A
175A
200A
225A
250A
300A
350A
400A
500A
600A
700A
800A
36
M C C B
15600
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M C C B
NF 1200HA
internal resistance & power loss
LossW
Resistanceu
NF 800HA
LossW
Resistanceu
NF 600HA
LossW
Resistanceu
NF 400HA
LossW
Resistanceu
NF 250HA
LossW
Resistanceu
NF 100HA
LossW
Resistanceu
Type
In A
31500
33500
17000
8500
6000
3300
3.2
7.5
6.8
7.7
9.6
8.2
2000 7.2
1500
1200
8.4
8.8
950 9.5
775 12.1
725 16.3
595 18.1
575 23.0
535 27.0
251 15.7
188 16.9
188 23.0
138 22.1
220 51.0
210 75.6
120 58.8
105 67.2
55 55.0
45 64.8
37
10A
15A
20A
30A
40A
50A
60A
75A
80A
100A
125A
150A
160A
175A
200A
225A
250A
300A
350A
400A
500A
600A
700A
800A
1000A
1200A
680 17.4
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internal resistance & power lossNF 800L
LossW
Resistanceu
NF 600L
LossW
Resistanceu
NF 400L
LossW
Resistanceu
NF 250L
LossW
Resistanceu
NF 100L
LossW
Resistanceu
Type
In A
38
31500
33500
17500
9000
7000
4500
3.2
7.5
7.0
8.1
11.2
11.3
2200 7.9
1800
1500
10.1
11.2
1350 13.5
775 12.1
725 16.3
595 18.1
575 23.0
535 27.0
290 18.1
195 17.5
185 22.7
175 28.0
220 51.0
210 75.6
120 58.8
105 67.2
10A
15A
20A
30A
40A
50A
60A
75A
80A
100A
125A
150A
680 17.4160A
175A
200A
225A
250A
300A
350A
400A
500A
600A
700A
800A
M C C B
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DC voltage | time constant 10ms or below
M C C B d c s h o r t
c i r c u i t t a b l e
Model Pole 48V Icu/Ics 125V Icu/Ics 250V Icu/Ics 400V Icu/Ics 550V Icu/Ics 600V Icu/Ics
NF-50MA2
3
40 / 20
40 / 20
41 / 20
42 / 20
40 / 20
NF-100GP
1
2
3
NF-100MA
NF-100HA
NF-100L
NF-250GP
NF-250MA
NF-250HA
1
2
3
4
1
2
3
4
3
1
2
3
4
1
2
3
4
3
1
2
3
NF-250L
NF-400GP
NF-400HA
NF400L
NF-600 /
NF-800GP
NF-600 /
NF-800HA
NF-800L
NF-1200HA
3
4
3
4
3
3
4
3
4
3
3
4
50 / 25
50 / 25
50 / 25
50 / 25
100 / 50
100 / 50
100 / 50
100 / 50
150 / 75
50 / 25
50 / 25
50 / 25
50 / 25
100 / 50
100 / 50
100 / 50
100 / 50
150 / 75
40 / 20
40 / 20
40 / 20
80 / 40
80 / 40
100 / 50
100 / 50
150 / 75
80 / 40
80 / 40
100 / 50
100 / 50
150 / 75
100 / 50
100 / 50
15 / 8
15 / 8
15 / 8
15 / 8
15 / 8
30 / 15
30 / 15
30 / 15
30 / 15
80 / 40
80 / 40
80 / 40
80 / 40
100 / 50
30 / 15
30 / 15
30 / 15
30 / 15
80 / 40
80 / 40
80 / 40
80 / 40
100 / 50
15 / 8
15 / 8
15 / 8
40 / 20
40 / 20
80 / 40
80 / 40
100 / 50
40 / 20
40 / 20
80 / 40
80 / 40
100 / 50
80 / 40
80 / 40
7.5 / 4
7.5 / 4
7.5 / 5
7.5 / 6
7.5 / 7
15 / 8
15 / 8
15 / 8
15 / 8
40 / 20
40 / 20
40 / 20
40 / 20
50 / 25
15 / 8
15 / 8
15 / 8
15 / 8
40 / 20
40 / 20
40 / 20
40 / 20
50 / 25
7.5 / 4
7.5 / 4
7.5 / 4
20 / 10
20 / 10
40 / 20
40 / 20
50 / 25
20 / 10
20 / 10
40 / 20
40 / 20
50 / 25
40 / 20
40 / 20
6 / 3
6 / 3
10 / 5
10 / 5
25 / 13
25 / 13
35 / 18
10 / 5
10 / 5
25 / 13
25 / 13
35 / 18
6 / 3
13 / 8
13 / 8
25 / 13
25 / 13
35 / 18
13 / 8
13 / 8
25 / 13
25 / 13
35 / 18
25 / 13
25 / 13
8 / 4
18 / 9
8 / 4
18 / 9
10 / 5
18 / 9
10 / 5
18 / 9
18 / 9
8 / 4
18 / 9
8 / 4
18 / 9
10 / 5
18 / 9
10 / 5
18 / 9
18 / 9
39
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Interrupting Capacity Icu (kA) Sym
motor circuit protection
M C C B
s e l e c t i o n t a b l e
65
NF-100L
NF-250L
NF-400L
NF-800L
50
NF-100HA
NF-250HA
NF-400GP NF-400HA
NF-600HA
NF-800HA
25
NF-100MA
NF-250MA
10
NF-50MA
NF-100GP
NF-250GP
NF-600GP
NF-800GP
MotorCapacity
[kW at 400/440]
MotorFull-load
Current [A]
MCCBIn [A]
0.37
0.55
0.75
1.1
1.5
2.2
3
4
5.5
7.5
11
15
18.5
22
30
37
45
55
75
90
110
132
160
200
250
290
315
355
1.1
1.5
1.9
2.8
3.5
5
6.6
8.6
11.5
15
22
29
36
42
56
68
83
98
135
158
193
232
282
349
430
520
545
610
10
10
10
10
10
10
15
15
20
30
40
40
50
60
75
100
125
150
200
225
250
300
350
400
600
700
700
800
40
3-phase motor |400V 440V 50 / 60Hz
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Motor Full-Load Current (A)
3 415VRated Current (A)
Wire Size (mm2)
Rated Current (A)
Wire Size (mm2)
Wire Size (mm2)
Rated Current (A)
Motor Full-Load Current (A)
3 220V
motor selection | direct-online-starter
1.1 2.1
10
2
0.65
10
2
0.58
10
2
10
2
1.2
10
2
1.1
10
2.4 3.3 4.4 5.9 8.4 11 13.6 2015.5
10
2
1.4
10
2
1.3
10
10 10 15 20 30 30 5030
2 2 2 2 2 5.5 5.55.5
1.9 2.5 3.4 4.8 6.4 7.9 11.59
10 10 10 10 15 15 20 30
2 2 2 2 2 2 5.55.5
1.8 2.4 3.2 4.5 5.9 7.3 10.57.7
10 10 10 10 15 15 2015
2 2 2 2 2 2 2 2 5.52
MotorRatings
5.543.732.21.51.10.750.550.370.18kW
HP 1/4 1/2 3/4 1 1.5 2 3 4 5 5.5 7.5
41
Motor Full-Load Current (A)
3 380V
Motor Full-Load Current (A)
3 415VRated Current (A)
Wire Size (mm2)
Rated Current (A)
Wire Size (mm2)
Wire Size (mm2)
Rated Current (A)
Motor Full-Load Current (A)
3 220V
26.5 38
60
14
15
30
5.5
14
30
5.5
75
22
22
50
8
20.5
50
50 61
100
38
29
60
14
27
60
100
38
36
75
22
33
75
8 14 22
71 97
125
60
41
100
38
38
75
150
60
56
100
38
52
100
22 38
120 145
175
80
70
150
60
65
125
200
100
84
125
60
77
125
60 60
180 240
225
125
104
150
80
95
150
400
200
143
200
100
130
175
80
290
500
200
170
225
125
154
200
100100
MotorRatings
9075554537302218.515117.5kW
HP 10 15 20 25 30 40 50 60 75 100 125
Motor Full-Load Current (A)
3 380V
Short Circuit protection of electric motors
The NF series circuit breakers are suitable to combine with motor starters. As defined in IEC 60947-4
standards, the starter switching device, usually a magnetic contactor, must be coordinated with the
equipment capable of providing short circuit protection for circuit wiring/cables.
The common starting methods for asynchronous squirrel-cage induction motors which the NF series can be
used in combination are the direct-online-starters and star-delta-starters.
The following selection tables, illustrating the above, shows the suitable breaker ratings that can
accommodate motor starting currents. When more than one motor is connected to a branch circuit, the
sum of the motor rated current equals to the rated current of the breaker.
Please note that the breaker selection shown in the tables are subjected to the following: only 1 motor to be installed in the circuit and
the starting current is less than 6 times of motor full load current.
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Motor Full-Load Current (A)
3 380V
Motor Full-Load Current (A)
3 415V
RatedCurrent (A)
Wire Size (mm2)
RatedCurrent (A)
Wire Size (mm2)
Wire Size (mm2)
RatedCurrent (A)
Motor Full-Load Current (A)
3 220V
motor selection | direct-online-starter
motor selection | star-delta-starter
M C C B
349 411
600
200
202
400
150
185
300
150
700
325
238
400
200
218
400
500 625 780 980
800
325
290
500
200
260
500
360 450 570
600 800 1000
200 325 325
330 415 520
600 700 800
200 200 200 325 325
MotorRatings
315250200160132110kW
HP 150 180 220 270 340 420
42
Motor Full-Load Current (A)
3 415V
RatedCurrent (A)
Wire Size (mm2)
RatedCurrent (A)
Wire Size (mm2)
Wire Size (mm2)
RatedCurrent (A)
Motor Full-Load Current (A)
3 220V
20 28.5
50
8
11.5
30
3.5
10.5
30
3.5
50
8
15
30
5.5
14
30
5.5
38 50
75
22
22
50
8
20.5
50
8
100
22
29
60
14
27
60
14
61 71
125
38
35
75
22
33
75
22
150
38
41
100
38
41
100
22
97 120
200
60
56
100
38
52
100
38
225
60
70
150
50
65
150
50
145 180
300
80
84
175
50
77
175
50
240
400
100
143
225
80
130
225
80
400
80
104
225
60
95
200
60
MotorRatings
75554537302218.515117.55.5kW
HP 7.5 10 15 20 25 30 40 50 60 75 100
Motor Full-Load Current (A)
3 380V
Please note that the breaker selection shown in the tables are subjected to the following: only 1 motor to be installed in the circuit and
the starting current is less than 6 times of motor full load current.
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43
110
Motor Full-Load Current (A)
3 415VRated Current (A)
Wire Size (mm2)
Rated Current (A)
Wire Size (mm2)
Wire Size (mm2)
Rated Current (A)
Motor Full-Load Current (A)
3 220V
motor selection | star-delta-starter
290
500
150
170
300
100
154
300
80
MotorRatings
90kW
HP 125
Motor Full-Load Current (A)
3 380V
349
600
150
202
400
125
185
300
100
150
160
411
800
200
238
400
125
218
400
125
132
180
500
1000
250
290
600
150
260
400
150
220
NF 50
NF 100-250
NF 400-600
NF 800-1200
Insulation, Insulated Barsor Painted Sheetmetal (mm)
installation | safety distance requirementsOperating
VoltageModel
25
50
75
80
A
40
50
50
55
100
100
B1
40
50
50
55
100
100
B2
Bare/UnpaintedSheetmetal (mm)
25
30
80
90
A
45
55
100
100
B1
45
55
100
100
B2
U
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NF-800
NF-50
NF-100
NF-250
NF-400
NF-600
NF-1200
NF-50
NF-100
NF-250
NF-400
NF-600
NF-800
NF-1200
tightening range* Nm Bolt/Screw
To ensure the correct operation of the MCCB, it is essential to make a proper
cable or busbar termination to the MCCB. It is recommended that the
supplied screws be used to connect the cables or busbars to the breaker
terminals and tightened to the torque, as shown in the table below.
terminal-tightening torque
M C C B
44
Cable size mm2 ScrewModel
terminals for cable lugs connection
M5 screw Pan head
M8 screw Screw
1.8 ~ 2.0 N/A
2.5 ~ 3.5 N/A
1.6
Min Max I II Size Type
22
1.6 50
M8 screw Screw
M12 bolt x 2 Bolts
2.5 ~ 3.5 N/A
N/A 10 ~ 14
38 150
150 2 x 100
M12 bolt x 2 Bolts
N/A N/A
N/A 10 ~ 14
N/A N/A
2 x 150 2 x 200
N/A N/A
N/A N/AN/A N/AN/A N/A
tightening range* kgf-cm Bolt/ScrewCopper busbar size mm2
Model
terminals for copper busbar connection
M5 screw
M8 screw
1.8 ~ 2.0 N/A
2.5 ~ 3.5 N/A
5
Max t = Max w = I II Size
12.5
5 16.5
M8 screw
M12 bolt x 2
2.5 ~ 3.5 N/A
N/A 10 ~ 14
7 23
8 25
M12 bolt x 2
M12 bolt x 2
N/A 10 ~ 14
N/A 10 ~ 14
8 40
10 44
M12 bolt x 2N/A 10 ~ 1417 44
* Note
Copper busbar
Caution
1) Do not over tighten. If the tightening torque isexceeded, bolts/screws and copper bars may
be damaged.2) Failure to secure a terminal connection may
cause an electrical fault. Make sure all
terminal connections are tightly secured.
w
t
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terminal-cable & copper busbar sizes
M C C B
c o n n e c t i o n d a t a
ISO Square(mm2)
CNS StandardSquare (mm2)
UL StandardAWG or kcmil at 75C
MCCBRated Current
In (A)
8 In > 0 1 1.6 14 AWG
14 AWG
14 AWG
12 AWG
10 AWG
10 AWG
8 AWG
6 AWG
4 AWG
3 AWG
2 AWG
1 AWG
1/0 AWG
2/0 AWG
3/0 AWG
4/0 AWG
250 MCM
300 MCM
350 MCM
500 MCM
2 x 3/0 AWG
2 x 250 MCM
2 x 350 MCM
3 x 300 MCM
2 x 250 MCM
2 x 350 MCM
3 x 300 MCM
2.0
2.0
2.0
5.5
8
14
22
38
38
38
50
60
80
100
100
125
150
200
200
250
1.5
2.5
2.5
4
6
10
16
25
35
35
50
50
70
95
95
120
150
185
185
240
2 x 150
2 x 185
2 x 240
2 x (30 x 5)
2 x (40 x 5)
2 x (50 x 5)
2 x 150
2 x 185
2 x 240
2 x (30 x 5)
2 x (40 x 5)
2 x (50 x 5)
12 In > 8
15 In > 12
20 In > 15
25 In > 20
32 In > 25
50 In > 32
65 In > 50
85 In > 65
100 In > 85
115 In > 100
130 In > 115
150 In > 130
175 In > 150
200 In > 175
225 In > 200
250 In > 225
275 In > 250
300 In > 275
350 In > 300
400 In > 350
500 In > 400
630 In > 500
800 In > 630
500 In > 400
630 In > 500
800 In > 630
45
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1.1 1.3 1.1 1.3Weight kgaa
CNS 5422(Asym/sym) kA
IEC 60947-2CNS 14816-2
(Icu/Ics) kA
Rated Breaking capacity
E L C B
46
EG series | with overload & short circuit protection100100
EG-100MA EG-100HA
3
230-380-415 (Multi-voltage type)
30-100-300 (selectable) 30-100-300 (selectable)
0.04 0.04
button button
10 15 20 30 40
50 60 75 80 100
10 15 20 30 40
50 60 75 80 100
1 2W
1 3W
3 3W
3 4W
1 2W
1 3W
3 3W
3 4W
4 3 4
Ampere Frame (AF)
Model Code
Supply System
Number of Pole (P)
Rated Operational Voltage: Ue Vac
Rated Current: In (A)at Ambient Temp 50C
Rated ResidualOperating Current
In (mA)
Max Operating Timeat 5 In (Sec)
Residual OperatingCurrent Indication System
Instantaneous
Type
Type: ACCharacteristics for DC Components
25 / 22
35 / 30
60 / 50
25 / 13
25 / 13
50 / 25
90
155
80
102
132
30
155
80
102
132
30
120
60 / 50
60 / 50
100 / 85
50 / 25
50 / 25
85 / 43
90 120
AC 440V
AC 380V
AC 220V
AC 415V
AC 380V
AC 230V
a
b
c
ca
bb
ON
OFF
a
aa
ca
bbb
c
(mm)
Type: AC
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1.6 1.8 1.6 1.8Weight kgaa
CNS 5422(Asym/sym) kA
IEC 60947-2CNS 14816-2
(Icu/Ics) kA
Rated Breaking capacity
E L C B
47
EG series | with overload & short circuit protection250250
EG-250MA EG-250HA
3
230-380-415 (Multi-voltage type)
30-100-300 (selectable) 30-100-300 (selectable)
0.04 0.04
button button
125 150 160
175 200 225 250
125 150 160
175 200 225 250
1 2W
1 3W
3 3W
3 4W
1 2W
1 3W
3 3W
3 4W
4 3 4
Ampere Frame (AF)
Model Code
Supply System
Number of Pole (P)
Rated Operational Voltage: Ue Vac
Rated Current: In (A)at Ambient Temp 50C
Rated ResidualOperating Current
In (mA)
Max Operating Timeat 5 In (Sec)
Residual OperatingCurrent Indication System
Instantaneous
Type
Characteristics for DC Components
25 / 22
35 / 30
60 / 50
25 / 13
25 / 13
50 / 25
105
165
80
104
126
35
165
80
104
126
35
140
60 / 50
60 / 50
100 / 85
50 / 25
50 / 25
85 / 43
105 140
AC 440V
AC 380V
AC 220V
AC 415V
AC 380V
AC 230V
a
b
c
ca
bb
ON
OFF
a
aa
ca
bbb
c
(mm)
Type: AC Type: AC
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EG series | operating characteristics: EG-100MA & EG-100HA
4hr
2hr
1hr
30min20min14min10min6min4min
2min
1min
30sec20sec
10sec
5sec
2sec
1sec
0.5sec
0.2sec
0.1sec
0.05sec
0.02sec
0.01sec
Operatingtime
x 100% of rated current
1 1.3 2 3 4 5 6 7 10 15 20 30 40
EG-100MA, EG-100HA
Frame size: 100AFRated current:
10A 15A 20A 30A 40A
50A 60A 75A 80A 100A
Max
Min
Time delay tr ip I ns tant aneous t ri p
EG series |
130
120
110
100
90
15 20 30 40 50 6080
Rated ambient 50 C
Currentrating(%)
Ambient temperature ( C)
Ratedambient
10A~30A
40A~100A
Residual Current% of rated residual current48
E L C B c h a r a c t e r i s t i c s
temperature & operatingcharacteristics for instantaneous type
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EG series | operating characteristics: EG-250MA & EG-250HA
4hr
2hr
1hr
30min20min14min10min6min4min
2min
1min
30sec20sec
10sec
5sec
2sec
1sec
0.5sec
0.2sec
0.1sec
0.05sec
0.02sec
0.01sec
Operatingtime
x 100% of rated current
1 1.3 2 3 4 5 6 7 10 15 20 30 40
EG-250MA, EG-250HA
Frame size: 250AFRated current:
125A 150A 160A 175A
200A 225A 250A
Max
Min
Time delay tr ip I ns tant aneous t ri p
Max Total
Interrupting time.
EG series |
130
120
110
100
90
10 20 30 40 50 60 7080
Rated ambient 50
C
Currentrating(%)
Ambient temperature ( C)
Ratedambient
Residual Current% of rated residual current 49
E L C B c h a r a c t e r i s t i c s
temperature & operatingcharacteristics for instantaneous type
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EG series | front connection: EG-100MA & EG-100HA
CL
CL
N
60
50
12
0
4.5
5013
4
15
5
30
90
120
4 84
102
80
73
27
Screw
22
90
Mounting hole
Trip button
Insulation barrier
(removable)
Neutral pole
24
8.
5
CL CL CL
132
52
3086
28
4-pole
Breaker3-pole
30
M4 Screw
or 5mm
R1CL
Breaker
50
E L C B d i m e n s i o n s
3-pole 4-pole
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EG series | front connection: EG-250MA & EG-250HA
CL
CL
N
70
100
102
4.
5
501
44
165
35
105
140
4 84
104
80
73
45
Screw
22
105
Mounting hole
Trip button
Insulation barrier
(removable)
Neutral pole
24
8.
5
CL CL CL
CL126
52
35100
32.5
4-pole
Breaker3-pole
35
M4 Screw
or 5mm
R1
Breaker
51
E L C B d i m e n s i o n s
3-pole 4-pole
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M C B
BHQ series | fixed type100100100
BHQ-1 BHQ-2 BHQ-3
1
220 / 415 220 / 415 220 / 415
10
6 / 3
10
6 / 3
10
6 / 3
1
25
95
50
95
75
95
58.5 58.5 58.5
77.5 77.5 77.5
100 100 100
0 25 50
0.15 0.31 0.46
10 15 20 30 40
50 60 75 80 100
10 15 20 30 40
50 60 75 80 100
10 15 20 30 40
50 60 75 80 100
2 3
Ampere Frame (AF)
Model Code
Number of Pole (P)
Rated Voltage: Ue Vac
Rated Current: In (A)at Ambient Temperature: 50 C
Breaking capacity (kA)
AC 220V
AC 110/220V
AC 220/415V
DC 125V
a
b
c
ca
bb
aa
kgWeight
CNS 2931(Asym/sym) kA
IEC 60947-2CNS 14816-2
52
a
aa
ca
bbb
c
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BHP series | plug-in type100100100
BHP-1 BHP-2 BHP-3
1
220 / 415 220 / 415 220 / 415
10
6 / 3
10
6 / 3
10
6 / 3
1
25
74
50
74
75
74
60.5 60.5 60.5
77.5 77.5 77.5
0 25 50
0.13 0.26 0.39
10 15 20 30 40
50 60 75 80 100
10 15 20 30 40
50 60 75 80 100
10 15 20 30 40
50 60 75 80 100
2 3
Ampere Frame (AF)
Model Code
Number of Pole (P)
Rated Voltage: Ue Vac
Rated Current: In (A)at Ambient Temperature: 50 C
Breaking capacity (kA)
AC 220V
AC 110/220V
AC 220/415V
DC 125V
a
b
c
ca
bb
aa
kgWeight
CNS 2931(Asym/sym) kA
IEC 60947-2CNS 14816-2
(Icu/Ics) kA
53
a
aa
b
ca
c
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BHQ & BHP series | operating characteristics
4hr
2hr
1hr
30min20min14min10min6min4min
2min
1min
30sec20sec
10sec
5sec
2sec
1sec
0.5sec
0.2sec
0.1sec
0.05sec
0.02sec
0.01sec
Operatingtime
x 100% of rated current
1 1.3 2 3 4 5 6 7 10 15 20 30 40
Type : BHQ, BHP
Rated current:
10A 15A 20A 30A 40A 50A
60A 75A 80A 100A
Min (10~50A)
Max (10~50A)
Max (60~100A)
Min (60~100A)
BHQ & BHP series | temperature characteristics
150
145
140
135
130
125
120
115
110
105
100
10 15 20 25 30 35 40 45 50 55 6095
Rated ambient 50 C
Currentrating
(%)
Ambient temperature ( C)
10A
Ratedambient
15A~30A
40A~50A
60A~100A
54
M C B c h a r a c t e r i s t i c s
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BHQ series | fixed type front connection
CL
25
25
50
50
75
58.5
87
100
113
32
63.5
77.5
Mig bracket
Mig bracket
M5 Screw
(Line side & Load side)
73
95
57
BHP series | plug-in type front connection
25
25 25
50 75 77.5
60.5
65.5
57.
5
71.
5
74
7.
5
25
Plug-in terminal
(Line side)
M5 Screw
(Load side)
Mig SlotMig Slot
22 47 47
13.5
5.5
55
M C B d i m e n s i o n s
1-pole 2-pole 3-pole
1-pole 2-pole 3-pole
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IEC 60947-2CNS 14816-2
(Icu/Ics) kA
Rated Breaking capacity (kA)
R C B O
56
EQ series | fixed type505050
EQ-1 EQ-2 EQ-3
1 2W
1
220 / 240 220 / 240 220 / 240
30
0.04
30
0.04
30
0.04
Type: AC
10 15 20
30 40 50
10 15 20
30 40 50
10 15 20
30 40 50
1 2W
2
1 2W
1 3W
3 3W
3
Ampere Frame (AF)
Model Code
Supply System
Number of Pole (P)
Rated Operational Voltage: Ue Vac
Rated Current: In (A)at Ambient Temp 50C
Rated Residual
Operating CurrentIn (mA)
Max Operating Timeat 5 In (Sec)
Characteristics for DC Components
InstantaneousType
with overload &short circuit protection
10
10 / 5
10
10 / 5
10
10 / 5
25
96
50
96
75
96
58 58 58
77 77 77
100 100 100
25 50
0.2 0.3 0.5
AC 220/380V
AC 110/220V
AC 220/240V
a
b
c
ca
bb
aa
kgWeight
CNS 5422(Asym/sym) kA
aca
bbb
c
Type: AC Type: AC
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EP-1 EP-2 EP-3
57
EP series | plug-in type505050Ampere Frame (AF)
Model Code
IEC 60947-2CNS 14816-2
(Icu/Ics) kA
Rated Breaking capacity (kA)
1 2W
1
220 / 240 220 / 240 220 / 240
30
0.04
30
0.04
30
0.04
10 15 20
30 40 50
10 15 20
30 40 50
10 15 20
30 40 50
1 2W
2
1 2W
1 3W
3 3W
3
Supply System
Number of Pole (P)
Rated Operational Voltage: Ue Vac
Rated Current: In (A)at Ambient Temp 50C
Rated Residual
Operating CurrentIn (mA)
Max Operating Timeat 5 In (Sec)
Characteristics for DC Components
InstantaneousType
10
10 / 5
10
10 / 5
10
10 / 5
25
83
50
83
75
83
62 62 62
81 81 81
0.2 0.3 0.5
AC 220/380V
AC 110/220V
AC 220/240V
a
b
c
ca
bb
aa
kgWeight
CNS 5422(Asym/sym) kA
with overload &short circuit protection
aca
b
c
Type: AC Type: AC Type: AC
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EQ & EP series | operating characteristics
Operatingtime
x 100% of rated current
1 1.3 2 3 4 5 6 7 10 15 20 30 40
Min
Type: EQ-1, EQ-2, EQ-3,
EP-1, EP-2, EP-3Rated current:
10A 15A 20A 30A
40A 50A
4hr
2hr
1hr
30min20min14min10min6min4min
2min
1min
30sec20sec
10sec
5sec
2sec
1sec
0.5sec
0.2sec
0.1sec
0.05sec
0.02sec
0.01sec
Max
EQ & EP series |
150
145
140
135
130
125
120
115
110
105
100
10 15 2 0 25 30 35 40 45 50 55 60
95
Rated ambient 50 C
Currentrating
(%)
Ambient temperature ( C)
Ratedambient
10A~20A
30A~50A
Residual Current% of rated residual current58
R C B O c h a r a c t e r i s t i c s
temperature & operatingcharacteristics for instantaneous type
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EQ series | fixed type front connection
EP series | plug-in type front connection
59
R C B O d i m e n s i o n s
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ordering codes | MCCB
60
NF 400 HA 300A 3P STC 3
type framesize
breakingcapacity
nominalcurrent
pole accessory accessoryframesize
Example:
NF 400 HA 300A 3P STC 3
400A frame size breaker with Rated Nominal
current of 300A, 3-poles and complete with
400A frame size Shunt trip coil.
800AF600AF400AF250AF100AF50AF
Frame SizeIcu
25kA 25kA
1200AF
10kA 25kA10kA
25kA10kA 25kA
50kA 50kA 50kA50kA 50kA50kA
65kA 65kA65kA 65kA65kA
GP
MA
HA
L
breaking capacity, Icu @ 415V ~
CodeItem
STC
UVT
AUS
ALS
AAS
RHN
Shunt trip coil (240Vac)
UVT (415Vac)
Auxiliary switch
Alarm switch
Auxiliary + alarm switch
Rotary handle
accessories
DescriptionNo of Poles
1 phase
2 phase
3 phase3 phase
+ neutral
1
2
3
4
poles
SizeCode
50AF
100AF
250AF
400AF to 1200AF
0
1
2
3
accessoryframe size
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what is quality ?
We define quality as products having the highest
level of reliability, performance and design. Ouraim for quality is to meet the requirements of
other global markets and to exceed the current
international standards. With our in-house design
and development team, our range of products
are currently manufactured in accordance and
compliance to various international standards.
our road to quality
Main OfficeHwa Shih Electric (M) Sdn Bhd
25 USJ 9/5P, Subang Jaya,47620 Selangor D. E., Malaysia.Tel : 603 8023 2966Fax : 603 8023 2523Email : [email protected]