series mccb series residual mccb series electronic...

Series Residual MCCB

Series Electronic MCCB

Series MCCB

Catalogue

Product features Application Conforming standards Operating condition Classification Types and meaning Release pattern and internal accessories code Table for quick selection of UEM5 series MCCB Main technical parameter Protection characteristics Use and Maintenance Characteristics of the residual current circuit breakers Standard of wiring Characteristic curve and Temperature compensation curve Externality and installation dimensions Internal accessories External accessories

Product feature

The casing like base and cover, which is made of the USA IDI company’s thermosetting material, has

high quality in strength and insulation, so as to ensure the breakers’ performance reliably. Advanced design of operation mechanism, rapid breaking and slight tripping force. Adopting the

“Double-way breaking system”, not only reducing the circuit breaker’s cubage, but greatly improving the short circuit breaking capacity as well.

The contact system adopts the principle of electromagnetic repulsion. Once there is fault current, the electromagnetic repulsion can separate the moving and stationary contacts rapidly, and increases the spacing, so as to achieve current limiting and improve the breaking capacity.

The circuit breakers of the same rated current frame and different breaking capacity share the absolutely identical dimensions of externality and installation, which can extremely improve the interchangeability.

The design of cassette-type accessories (including shunt release, under-voltage release, auxiliary contact and alarm contact) insures the flexibility of control function. The user can install them without opening the cover, and need not any adjustment. Since adopting design of the insulation box, the operation security has been improved.

The shunt release is applicable for a wide range of rated working voltage, and both of AC220V and AC380V, which not only makes wiring convenient, but also effectively prevents the shunt release from damage caused by mistaken voltage.

The UEM5L series residual MCCB have reliable low-voltage protection, which have insured the residual current protection to work normally even with the line voltage low to 50V. For one product, not only the residual operating current can be adjusted, but operating time’s non-delay and delay can be adjustable as well, furthermore, can open or close the residual current protection based on customers’ requirements, which have improved the operation flexibility.

The rated insulation voltage up to 800V, rated impulse withstands voltage up to 8000V, which can meet the application requirement of switch cabinet.

New and unique design (Several national patent right)

Appearance patent

◇Full series with patented appearance

Application of new material

◇The application of new polymer material

which can produce the gas for automatic arc

blowing.

Mechanism design paten

◇The self-locking mechanism after

dissembling movable contact.

◇New cover reversal mechanism

◇Double-way repulsion contact system

And etc.

(1) Application of new material (2) Double-way repulsion contact system

(3) New arc extinguish mechanism (4) Electro-Dynamic repulsion force for movable

contact and self-lock mechanism

(5) Reliable wiring nut (6) Reliable cover reversal mechanism

Polymer material to produce gas

Polymer material to produce gas

◇Rapid cut arc ◇Shorten arc burning

time ◇Increase the

electrical life ◇Increase the short

circuit breaking capacity

Adopts the principle of electromagnetic repulsion, design the fixed and movable contact as rolling type, greatly improved the short circuit breaking capacity.

◇ Rapid extinguish arc

◇ Improve the ultimate short circuit breaking capacity

◇ Movable contact repulsion mechanism: Rapid interrupt loop under short circuit, improve the short circuit breaking capacity

◇ Self-lock mechanism: effective avoid the contact re-burning under short-circuit, to improve the products reliability.

◇New wiring nut, avoid the customer cannot use.

◇Easy and quick to operate and replace.

◇Reversal cover mechanism

◇Rapid and reliable installation

◇Easy to operate and maintain

(7) Shunt-less current flow technology (8) New appearance design

Double insulation

Use double insulation to complete isolate the main circuit and control circuit, the shell of all accessories are completely isolated from main circuit, which eliminate the risk of electric shock, and protect the operator’s safety during operation and equipment inspection. In addition, the thickness and insulation distance of the insulation material in the internal electrified parts ensure the enough insulation strength, which is far exceeding the IEC standard.

Reliable operation

Circuit breaker operating handle instruct the position of movable contact to ensure safe and reliable indication (I = Closed; O = Open; -- = tripping off). Circuit breaker operating mechanism is trip-free, no related with the pressure and operating speed on handle. The release tripping will automatically disconnect the movable contact; if need to Close again, the operating handle need to be reset (via putting the handle from the middle position to the minimum limit of Open position).

Selectivity

Complete tripper series allow selecting the optional equipment protection base on the current, time, power or residual current, so as to isolate the fault zone, maximum guarantee the power supply continuity.

Convenient inspection

Once circuit breaker does not work properly, can directly check the status of internal parts and electrified parts, remove the circuit breaker cover, then can check the arc extinguishing chamber, movable contact and fixed contact, as the parts is fewer, the maintenance time can be greatly reduced, the maintenance safety has also been better ensured.。

◇Mechanical life reach up to 10000 cycles；

◇Stable and reliable line loop resistance

◇ Laser printing ◇ The printing will not

fall off under the different environment and temperature.

Application

UEM5 Series Molded Case Circuit Breakers (circuit breakers for short below) are applicable to the electrical network under the condition of AC50Hz, rated working current 10A - 800A, rated insulation voltage 800V and rated working voltage 400V or below. They have overload, short-circuit and under-voltage protection performances, among which the UEM5L series residual current circuit breakers can be used to protect human body and equipment from electric shock and residual current, as well as to prevent from fire danger due to earth-fault current which is caused by equipment insulation damage. Normally, the circuit breakers also take the role of infrequent turn-on or turn-off and infrequent motor starting-up.

The circuit breakers can be equipped with the accessories such as under-voltage release, shunt release, auxiliary contact, alarm contact, motor-driven operation mechanism, turning operation handle, etc.

This series of circuit breakers have a disconnecting function and the corresponding symbol is shown as “ ”

Conforming standards

IEC 60947-2 (GB14048.2) Low voltage switchgear and control gear: Low voltage breaker

GB14048.4 Low voltage switchgear and control gear: Electro-mechanical contactor and motor

starter

GB14048.5 Low voltage switchgear and control gear Part 1 of control circuit device and switching element: Mechanical and electric control circuit device

GB6829 Residual current operated protective devices’ general standard.

Operating condition

Ambient air temperature a) Upper limit: ＋40℃; b) Lower limit: －5℃; c) The average value within a 24-hour period must not exceed ＋35℃.

Altitude

The installation place’s altitude must not exceed 2000m.

Relative humidity

Relative humidity must not exceed 50% at the maximum ambient temperature of ＋40℃, but can be higher at a lower temperature; the average maximum relative humidity should be 90% at the average lowest temperature of +25℃ in the most humid month, considering the dews on product surface due to temperature change as well.

Pollution degree The pollution degree is 3, and that of the internal accessories is 2.

Installation category Ⅲ for the main circuit of the breakers, and Ⅱ for the auxiliary and control circuits.

Installation conditions The circuit breakers can be installed either vertically or horizontally. Wire connection usually follows line side on top, load side on bottom, and the magnetic intensity of installed location should not be more than 5 times that of earth magnetic field at any direction.

Classification

According to the applications a) for power distribution protection b) for motor protection

According to the number of the poles a) 3 poles b) 4 poles

According to the operation patterns a)direct operation b)motor-driven(P) c)turning handle(Z)

According to the wiring methods a) Front fix b) Back fix c) Plug in

According to the residual current operating time a) non-delay; b) delay. Type and meaning

Accessories code

Poles

Operation Pattern

Deriuative code

Moulded case circuit breaker

XIAMEN HONGMEI ELECTRONIC Co.,Ltd.

Design code

UE M 5

Rated frame current

Application code

Rated current

Breaking capacity grade

N-pole mode code

Installation pattern code

Release pattern and accessories code co Handle

● Alarm contact ■ Shunt release

Left Right ○ Auxiliary contact □ Under-voltage release

UEM5-63L UEM5-100L,M,H,R UEM5-225L,M, H,R

UEM5L-100L,M,HUEM5L-225L,M,H

UEM5-63L UEM5-100M UEM5-225M UEM5L-100M UEM5L-225M

UEM5-400L,M,H,R UEM5-800L,M,H,R

UEM5L-400L,M,H,RUEM5L-800L,M,H,R

UEM5-400M UEM5-800M UEM5L-400M UEM5L-800M

Type Pole Acce. Acce. code name

3 3 4 3 3 4

200,300 No accessories —— —— —— —— —— ——

208,308 Alarm contact

●

●

●

●

●

●

220,320 Auxiliary

contact

〇

〇

〇

〇

〇

〇

210,310 Shunt release

■

——

■

■

■

■

230,330 Low-voltage

release

□

——

□

□

□

□

228,328

Alarm contact

Auxiliary

contact

● 〇

● 〇

● 〇

● 〇

● 〇

● 〇

218,318 Alarm contact

Shunt release

● ■

——

● ■

● ■

——

● ■

238,338

Alarm contact

Under-voltage

release

● □

——

● □

● □

——

● □

248,348

Alarm contact

Auxiliary

contact

● ■ 〇

——

● ■ 〇

● ■ 〇

——

● ■ 〇

278,378

Alarm contact

Auxiliary

contact

Shunt release

● □ 〇

——

● □ 〇

● □ 〇

——

● □ 〇

240,340

Auxiliary

contact

Shunt release

〇 ■

——

〇 ■

■ 〇

——

■ 〇

270,370

Auxiliary

contact

Under-voltage

release

〇 □

——

〇 □

〇 □

——

〇 □

Note: 1. When an auxiliary contact is installed at the right side for 4p breakers, the N-pole mode only can be B or C. 2. When the UEM5L series three poles residual circuit breaker needs to install a shunt release, it needs to use special

structure

Quick selection table of UEM5 series MCCB

Derivative Code No code: Thermal & magnetic compound over-current release, without residual current protection. L: Thermal & magnetic compound over-current release, with residual current protection. Z1: intelligent over-current release, without residual current protection.

Rated current

UEM5 L 100 L P / 80 3 300 2 A H

Number of poles 3: three poles 4: four poles

Homer MCCB

The N-pole of the four-pole products has four types: A, B, C and D. Type A: N-pole without over-current release, it has been connected all along, and does not act with other three poles. Type B: N-pole without over-current release, it could act with other three poles. Type C: N-pole fixed with over-current release, it could act with other three poles. Type D: N-pole fixed with over-current release, it has been connected all along, and does not act with other three poles.

Short circuit breakers capacity L: Standard M: Relatively high breaking H: High breaking R: Conditional current

Code for release pattern and internal accessories 200- electromagnetic protection 300- compound protection Refer to the release pattern and internal accessories codes in detail

Operation Pattern No code: handle operation P: motor-driven Z: turning handle

Application code No code: power distribution protection 2: motor protection

Rated Frame Current 63 100 225 250 400 800

Installation pattern code No code: Front fix H: Back fix R: Plug in

Main technical parameter

With a modular design, we can organically combine Thermal & magnetic, electronic and residual current operated protection, to form UEM5 molded case circuit breaker, UEM5L residual current circuit breaker, UEM5Z1 electronic molded case circuit breaker.

UEM5-63 series MCCB

Rated frame current (A)

63

Type UEM5-63 Rated current In（A） 10, 16, 20, 25, 32, 40, 50, 63 Pole number 3 4 Rated insulation voltage Ui（V） AC800 Rated working voltage Ue（V） AC400 Rated ultimate short-circuit breaking capacity Icu (kA) 35

Rated service short-circuit breaking capacity Ics（kA）

AC400V

20

Rated impulse withstand voltage Uimp (V) 8000 Arc-over distance (mm) ≤50 Use category A Pollution grade 3

a 90 120 b 155 c 62

Dimension（mm） d 90 Front fix ● ● Back fix ● ●

Wiring pattern

Plug in ● ● Shunt release ● ● Under-voltage release ● ● Auxiliary contact ● ● Alarm contact ● ● Motor-driven ● ● Turning handle ● ●

Accessories

Back fix accessories ● ● Protection function Over load, short circuit over-current release device Thermal & magnetic Weight(kg) 1.3 2.2

■ UEM5-100 series MCCB


100

Type UEM5-100L UEM5-100M Rated current In（A） 16, 20, 25, 32, 40,

50, 63, 80, 100 16, 20, 25, 32, 40,

50, 63, 80, 100 Pole number 3 4 3 4 Rated insulation voltage Ui（V） AC800 AC800 Rated working voltage Ue（V） AC400 AC400 Rated ultimate short-circuit breaking capacity Icu (kA)

35 50

Rated service short-circuit breakincapacity Ics（kA）

AC400V

25 35

Rated impulse withstand voltage Uimp (V) 8000 8000 Arc over distance (mm) ≤50 ≤50 Use category A A Pollution grade 3 3

a 90 120 90 120 b 155 155 c 62 78

Dimension (mm) d 90 106 Front fix ● ● ● Back fix ● ● ●

Wiring pattern

Plug in ● ● ● Shunt release ● ● ● Under-voltage release ● ● ● Auxiliary contact ● ● ● Alarm contact ● ● ● Motor-driven ● ● ● Turning handle ● ● ●

Accessories

Back fix accessories ● ● ● Protection function Overload, short circuit, residual

current Overload, short circuit,

residual current over-current release device Thermal & magnetic Thermal & magnetic Weight(kg) 1.3 2.2 1.6 2.5



100

Type UEM5-100H UEM5-100R

Rated current In（A） 16,20,25,32,40, 50,63,80,100

16,20,25,32,40,50,63,80,100

Pole number 3 4 3 4

Rated insulation voltage Ui（V） AC800 AC800

Rated working voltage Ue（V） AC400 AC400

Rated ultimate short-circuit breaking capacity Icu (kA)

70 85


AC400V

50 65

Rated impulse withstand voltage Uimp (V) 8000 8000

Arc over distance (mm) ≤50 ≤50

Use category A A

Pollution grade 3 3

a 90 120 90 120

b 155 155

c 78 78 Dimension (mm)d 106 106

Front fix ● ● ● ● Back fix ● ● ● ●

Wiring pattern

Plug in ● ● ● ● Shunt release ● ● ● ● Under-voltage release ● ● ● ● Auxiliary contact ● ● ● ● Alarm contact ● ● ● ● Motor-driven ● ● ● ● Turning handle ● ● ● ●

Accessories

Back fix accessories ● ● ● ● Protection function Overload, short circuit,

residual current Overload, short circuit,

residual current over-current release device Thermal & magnetic Thermal & magnetic Weight(kg) 1．6 2．5 1.6 2.5

■ UEM5-225/250 series MCCB

Rated frame current（A）

225/250

Type UEM5-225/250L UEM5-225/250M Rated current In（A） 100,125,140,

160,180,200,225,250 100,125,140,

160,180,200,225,250 Pole number 3 3 4 Rated insulation voltage Ui（V） AC800 AC800 Rated working voltage Ue（V） AC400 AC400 Rated ultimate short-circuit breaking capacity Icu (kA)

35 50


AC400V

25 35


a 105 105 140 b 165 165 c 62 85

Dimension (mm) d 90 118

Front fix ● ● ● Back fix ● ● ●

Wiring pattern

Plug in ● ● — Shunt release ● ● ● Under-voltage release ● ● ● Auxiliary contact ● ● ● Alarm contact ● ● ● Motor-driven ● ● ● Turning handle ● ● ●

Accessories

Back fix accessories ● ● ● Protection function Overload, short circuit Overload, short circuit over-current release device Thermal & magnetic Thermal & magnetic Weight(kg) 1.5 2．0 2.9

UEM5-225/250 series MCCB


225/250

Type UEM5-225/250H UEM5-225/250R Rated current In（A） 100,125,140,

160,180,200,225,250 100,125,140,

160,180,200,225,250 Pole number 3 4 3 4 Rated insulation voltage Ui（V） AC800 AC800 Rated working voltage Ue（V） AC400 AC400 Rated ultimate short-circuit breaking capacity Icu (kA)

70 85


AC400V

50 65


a 105 140 105 140 b 165 165

c 85 85 Dimension (mm) d 118 118

Front fix ● ● ● ● Back fix ● ● ● ●

Wiring pattern

Plug in ● ● ● ● Shunt release ● ● ● ● Under-voltage release ● ● ● ● Auxiliary contact ● ● ● ● Alarm contact ● ● ● ● Motor-driven ● ● ● ● Turning handle ● ● ● ●

Accessories

Back fix accessories ● ● ● ● Protection function Overload, short circuit Overload, short circuit over-current release device Thermal & magnetic Thermal & magnetic Weight(kg) 2．0 2.9 2．0 2.9

　



400

Type UEM5-400L UEM5-400M Rated current In（A） 225,250,315,350,400 225,250,315,350,400 Pole number 3 4 3 4Rated insulation voltage Ui（V） AC800 AC800 Rated working voltage Ue（V） AC400 AC400 Rated ultimate short-circuit breaking capacity Icu (kA)

50 65


AC400V

35 50


a 140 184 140 184 b 257 257 c 99 99

Dimension (mm) d 155 155 Front fix ● ● ●Back fix ● ● ●Wiring pattern Plug in ● ● ●Shunt release ● ● ●Under-voltage release ● ● ●Auxiliary contact ● ● ●Alarm contact ● ● ●Motor-driven ● ● ●Turning handle ● ● ●

Accessories

Back fix accessories ● ● ●Protection function Overload, short circuit Overload, short

circuit over-current release device Thermal & magnetic Thermal & magnetic Weight(kg) 6．2 8 6．2 8

　



400

Type UEM5-400H UEM5-400R Rated current In（A） 225,250,315,350,400 225,250,315,350,400 Pole number 3 4 3 4 Rated insulation voltage Ui（V） AC800 AC800 Rated working voltage Ue（V） AC400 AC400 Rated ultimate short-circuit breaking capacity Icu (kA)

85 100


AC400V

65 75


a 140 184 140 184 b 257 257 c 99 99

Dimension (mm) d 155 155 Front fix ● ● ● ● Back fix ● ● ● ● Wiring pattern Plug in ● ● ● ● Shunt release ● ● ● ● Under-voltage release ● ● ● ● Auxiliary contact ● ● ● ● Alarm contact ● ● ● ● Motor-driven ● ● ● ● Turning handle ● ● ● ●

Accessories

Back fix accessories ● ● ● ● Protection function Overload, short

circuit Overload, short

circuit over-current release device Thermal & magnetic Thermal & magnetic Weight(kg) 6．2 8 6．2 8

UEM5-800 series MCCB


800

Type UEM5-800L UEM5-800M Rated current In（A） 400,500,630,700,800 400,500,630,700,800 Pole number 3 4 3 4 Rated insulation voltage Ui（V） AC800 AC800 Rated working voltage Ue（V） AC400 AC400 Rated ultimate short-circuit breaking capacity Icu (kA)

50 65


AC400V

35 50


a 210 280 210 280 b 275 275 c 103 103

Dimension (mm) d 160 160

Front fix ● ● ● Back fix ● ● ●

Wiring pattern

Plug in ● ● ● Shunt release ● ● ● Under-voltage release ● ● ● Auxiliary contact ● ● ● Alarm contact ● ● ● Motor-driven ● ● ● Turning handle ● ● ●

Accessories

Back fix accessories ● ● ● Protection function Overload, short circuit Overload, short circuit over-current release device Thermal & magnetic Thermal & magnetic Weight(kg) 9.7 12.8 9.7 12.8

UEM5-800 series MCCB

壳架等级（A）

800

Type UEM5-800H UEM5-800R Rated current In（A） 400,500,630,700,800 400,500,630,700,800 Pole number 3 4 3 4 Rated insulation voltage Ui（V） AC800 AC800 Rated working voltage Ue（V） AC400 AC400 Rated ultimate short-circuit breaking capacity Icu (kA)

85 100


AC400V

65 75


a 210 280 210 280 b 275 275 c 103 103

Dimension (mm) d 160 160 Front fix ● ● ● ● Back fix ● ● ● ● Wiring

pattern Plug in ● ● ● ●

Shunt release ● ● ● ●

Under-voltage release ● ● ● ●

Auxiliary contact ● ● ● ●

Alarm contact ● ● ● ●

Motor-driven ● ● ● ●

Turning handle ● ● ● ●

Accessories

Back fix accessories ● ● ● ● Protection function Overload, short circuit Overload, short circuit over-current release device Thermal & magnetic Thermal & magnetic Weight(kg) 9.7 12．8 9.7 12.8

UEM5L-100 residual MCCB

Rated frame current (A) 100

Type UEM5L-100M UEM5L-100H UEM5L-100R

Rated current In（A） 16,20,25,32,40,50,63,80,100

16,20,25,32,40,50,63,80,100

16,20,25,32,40,50,63,80,100

Pole number 3 4 3 4 3 4 Rated residual operating current I△n（mA）

30/100/300 adjustable


30/100/300 adjustable Non-delay

5I△n max disconnect time（s） 0.04 0.04 0.04 Rated residual operating current

I△n（mA） 30/100/300 adjustable



2I△n max disconnect time（s） 0.5,0.8 0.5,0.8 0.5,0.8 Time delay

2I△n max. non-driven time △t（s） 0.1,0.3 0.1,0.3 0.1,0.3

Residual current indication Button Button Button Rated insulation voltage Ui（V） AC800 AC800 AC800 Rated working voltage Ue（V） AC400 AC400 AC400

Ultimate breaking capacity Icu(kA) 50 70 85 Service breaking capacity Ics（kA）

AC400V 35 50 65 Rated impulse withstand voltage Uimp (V) 8000 8000 8000

Arc over distance (mm) ≤50 ≤50 ≤50 Use category A A A

Insulation grade 3 3 3 a 90 90 120 90 120 b 155 155 155

c 78 78 78 Dimension (mm)

d 106 106 106

Front fix ● ● ● ● ● ● Back fix ● ● ● ● ● ●

Wiring pattern

Plug in ● ● ● ● ● ● Shunt release ● ● ● ● ● ● Under-voltage release ● ● ● ● ● ● Auxiliary contact ● ● ● ● ● ● Alarm contact ● ● ● ● ● ● Motor-driven ● ● ● ● ● ● Turning handle ● ● ● ● ● ●

Accessories

Back fix accessories ● ● ● ● ● ●

Protection function Overload, short circuit, residual

current

Overload, short circuit, residual

current


current over-current release device Thermal & magnetic Thermal & magnetic Thermal & magnetic

Action characteristic AC AC AC




Rated current In（A） 100,125,140,160, 180,200,225

100,125,140,160, 180,200,225

100,125,140,160, 180,200,225






I△n（mA） 30/100/300 adjustable



2I△n max disconnect time（s） 0.5,0.8 0.5,0.8 0.5,0.8 Time delay 2I△n max. non-driven time △t

（s） 0.1,0.3 0.1,0.3 0.1,0.3

Residual current indication Button Button Button Rated insulation voltage Ui（V） AC800 AC800 AC800 Rated working volatage Ue（V） AC400 AC400 AC400


AC400V 35 50 65 Rated impulse withstand voltage Uimp (V) 8000 8000 8000

Arc over distance (mm) ≤50 ≤50 ≤50 Use category A A A

Insulation grade 3 3 3 a 105 140 105 140 105 140 b 165 165 165 c 85 85 85

Dimension (mm) d 118 118 118 Front fix ● ● ● ● ● ● Back fix ● ● ● ● ● ●

Wiring pattern

Plug in ● ● ● ● ● ● Shunt release ● ● ● ● ● ●

Under-voltage release ● ● ● ● ● ● Auxiliary contact ● ● ● ● ● ●

Alarm contact ● ● ● ● ● ● Motor-driven ● ● ● ● ● ●

Turning handle ● ● ● ● ● ●

Accessories



current


current







Rated current In（A） 225,250,315,350,400 225,250,315,350,400

225,250,315,350,400






I△n（mA） 100/300/500

adjustable 100/300/500


adjustable 2I△n max disconnect time（s） 0.7, 1.5, 2 0.7, 1.5, 2 0.7, 1.5, 2

Time delay

2I△n max. non-driven time △t（s） 0.2, 0.5, 1 0.2, 0.5, 1 0.2, 0.5, 1



AC400V 50 65 75

Rated impulse withstand voltage Uimp (V) 8000 8000 8000 Arc over distance (mm) ≤50 ≤50 ≤50

Use category A A A Insulation grade 3 3 3

a 140 184 140 184 140 184 b 257 257 257

c 99 99 99 Dimension (mm) d 155 155 155


Wiring pattern

Plug in ● ● ● ● ● ● Shunt release ● ● ● ● ● ●




Accessories



current


current






Type UEM5L-800M UEM5L-800H UEM5L-800R Rated current In（A） 400,500,630,700,800 400,500,630,700,800 400,500,630,700,800




300/500/1000 adjustable Non-dela


I△n（mA） 300/500/1000



adjustable 2I△n max disconnect time（s） 0.7, 1.5, 2 0.7, 1.5, 2 0.7, 1.5, 2

Time delay 2I△n max. non-driven time △t

（s） 0.2, 0.5, 1 0.2, 0.5, 1 0.2, 0.5, 1



AC400V 50 65 75

Rated impulse withstand voltage Uimp (V) 8000 8000 8000 Arc over distance (mm) ≤50 ≤50 ≤50

Use category A A A Insulation grade 3 3 3

a 210 280 210 280 210 280 b 275 275 275

c 103 103 103 Dimension (mm) d 160 160 160


Wiring pattern

Plug in *（700A） — *（700A） — *（700A） — Shunt release ● ● ● ● ● ●




Accessories


Protection function Overload, short circuit, residual current


current




UEM5Z1 electronic MCCB


100 225 400 800

Type M H R M H R M H R M H R

Rated current In（A） 16-32, adjustable 40-100 adjustable

100-225 adjustable

200-400 adjustable 400-800 adjustable

Pole number 3 3 3 / 4 3 / 4

Rated insulation voltage Ui（V） AC800 AC800 AC800 AC800

Rated working voltage Ue（V） AC400 AC400 AC400 AC400

Rated impulse withstand voltage Uimp (V) 8000 8000 8000 8000

Arc over distance (mm) ≤50 ≤50 ≤50 ≤50

Use category A A B B

Insulation grade 3 3 3 3

Ultimate breaking capacity Icu(kA) 50 70 85 50 70 85 65 85 100 65 85 100

Service breaking capacity Ics（kA）

AC400V 35 50 65 35 50 65 50 65 75 50 65 75


- - 5 10

a 90 105 140 / 184 210 / 280

b 155 165 257 275

c 80 91 97 101

Dimension（mm）

d 106 118 155 158

Front fix ● ● ● ●

Back fix ● ● ● ● Wiring Plug in ● ● ● ●

Shunt release ● ● ● ●

Under-voltage release ● ● ● ●

Auxiliary contact ● ● ● ●

Alarm contact ● ● ● ●

Motor-driven ● ● ● ●

Turning handle ● ● ● ●

Accessories Back fix accessories ● ● ● ●

Protection function Over load, short

circuit delay, short circuit

instantaneous

Over load, short circuit delay, short circuit

instantaneous

Over load, short circuit delay, short circuit

instantaneous

Over load, short circuit delay, short

circuit instantaneous

Over-current release device Electronic & adjustable

Electronic & adjustable



Weight(kg) 1.6/2.5 2.0/2.9 5.7/7.5 9.5 / 12.5

Protection characteristic

Inverse time-delay over-current protection characteristics of UEM5 and UEM5L series circuit breakers a) For power distribution UEM5 and UEM5L series circuit breakers protection characteristics for power distribution（basic temperature+40℃）

Conventional time Test current Setting current In≤63A In＞63A

Initial state

conventional non-tripping current

1.05 ≥1h ≥2h Cold state

conventional tripping 1.30 ＜1h ＜2h Hot state Returnable

Returnable current 3.0 5s 8s

Cold state

b) For motor protection UEM5 and UEM5L series circuit breakers protection characteristics for motor protection（basic temperature+40℃）

Conventional time Test current Setting current In≤225A In＞255A

Initial state

conventional non-tripping current

1.0 ≥2h Cold state

1.2 ≤2h Hot state 1.5 ≤4min ≤8min Hot state

conventional tripping current

7.2 4s＜T≤10s 6s＜T≤20s Cold state

The breaking characteristics of over-current releases on the condition of short-circuit The breaking characteristics of UEM5 and UEM5L series circuit breakers’ over-current releases on the condition of short-circuit. 1) For power distribution protection circuit breakers, the short circuit protection setting current is 10In； 2) For motor protection circuit breakers, the short circuit protection setting current is 12In； The setting current described upside has precision of ±20％.

Operation performance of circuit breaker

Number of Rated frame current (A)

Number of operation cycles per hour energized Un-energized Total number

63 120 8000 20000 28000

100 120 8000 20000 28000

225 120 8000 20000 28000

400 60 7500 10000 17500

800 60 7500 10000 17500

Use and maintenance The circuit breaker’s protection characteristics of long time delay and instantaneous short circuit have

been set by the manufacturer, and it could not be adjusted arbitrarily. The rated residual working current

and residual current working time can be adjusted by the users according to actual needs.

When the main circuit is energized, the circuit breaker should be off if the “test” button is pushed down.

This test can only prove that the residual current protection function is in normal state, but cannot show

the concrete residual operating current value and time.

For the circuit breaker equipped with under-voltage release, the under-voltage release should be energized

in advance before the circuit breaker is switched on. Otherwise, the circuit breaker would be damaged!

The voltage withstand test and the insulation resistance test can be only made between polarity and ground,

but not between polarities, because of the electronic elements in the products.

The power side and the load side are showed on the outside of the residual current circuit breakers, and the

wires must be fixed according to regulations. The circuit breakers usually cannot be fed inversely.

No. “1, 3, 5” stands for the line side, “2, 4, 6” stands for the load side, “N” stands for the neutral.

The residual current protection function should be tested regularly (for example, one time per month) by

pushing down the test button. It is not permitted to directly connect the line with the neutral to do action

tests

Wiring standard

Table for Cross-sectional area of wiring cable and corresponding rated current

Rated current (A)

10 16

20

25

3240

50

63

80

100125

140

160

180

200

225

250 315

350

400

Cross-sectional area of

wire（mm2）

1.5 2.5 4 6 10 16 25 35 50 70 95 120 185 240

Cable Copper bar Rated Current（A） Number Area of wire

（mm2） Number Dimension（mm×mm）

500 2 150 2 30x5630 2 185 2 40x5

700 2 240 2 50x5

Characteristic of MCCB with residual current The work principle of residual current operated circuit breakers:

When the protected circuit (which is wired behind the residual current operated circuit breakers) occurs residual current or electric shock, as long as the value of residual current or electric shock current reaches the residual current operation value, the zero sequence current transformer’s secondary winding will send a voltage signal, which is examined by IC circuit, magnified and output, and enable the residual current release work to rapidly break the fault circuit off (according the setting requirement, the time-delay residual current operated circuit breakers breaks the fault circuit off after a certain delay time), so as to protect from residual current or electric shock.

Warning: the residual current operated circuit breakers cannot protect from electric shock danger

when human body touches both phase lines.

■ UEM5L series residual MCCB protection action time: 2I△n Limiting non-

operating time

Residual current I△n 2I△n 5I△n 10I△n

Non-delay — Max. disconnect

time（s）

0.3 0.15 0.04 0.04

0.1s 0.6 0.5 0.4 —

0.2s 0.8 0.7 0.5 —

0.3s 1 0.8 0.6 —

0.5s 2 1.5 1 —

Delay

1.0s

Max. disconnect time (s)

2.5 2 1.8 —

Note: If special residual operating current is needed, please note while making orders or note in the design diagram.

■General setting value of UEM5L series residual MCCB：

I△n Max. disconnect time Type Rated residual current setting value Non-delay Delay

UEM5L-100 100mA 0.3s —

UEM5L-225 100mA 0.3s —

UEM5L-400 300mA — 2s

UEM5L-800 500mA — 2.5s

Notices for operation of the residual current operated circuit breakers

The acting characteristic of residual current should be selected according to the standard of residual current protection installation and application, GB13955-92.

a) For protection for outlet loop at the end of circuit and hand-hold mobile electric apparatus, select the no time-delay circuit breakers of I△n 30mA.

b) The rated residual operating current (I△n) of integration power distribution protection circuit breaker which is not for end protection, is usually selected according to one thousandth of the circuit working current. For breaking time, the time-delay type should be selected first.

c) For three-phase and four-line load circuit, select the four-pole circuit breaker.

Notices for wiring:：

a) The circuit breaker is applicable for TT, TN-C-S and TN-S system of neutral earthed conductor. In

these conditions, it is strictly prohibited to connect PEN line or PE line to the N pole on the circuit

breaker’s load side, so as to prevent from unwanted operation or refuse operation.

b) In TN-C system, it should be considered to select residual current operating circuit breakers with N

pole constantly switched on. The PEN line can not break off, so the PE line of load cover should be

connected on the incoming end of the residual current operating circuit breakers, so as to prevent from

refuse operation as residual current can not be detected. For protect N line from over load, the residual

current operating circuit breakers with over current release on the N pole can be considered.

c) In IT system, usually it is suitable to install the RCCB. It is because that the system neutral point is

not earthed, and the residual current operating circuit breakers fail to operate with small fault residual

current. But in some location, failure insulation of circuit or too long routing can enlarge the

distributed capacitance in the networks. In this situation, the residual current operating circuit

breakers should be installed.

d) The neighbor outlet ends of circuitries with residual current protection should be connected with zero

lines in each, but cannot share one line.

For the UEM5L series residual current operating circuit breakers, no matter three-pole or four-pole,

the electronic circuits of the residual current release are both power-supplied by A,B and C 3 phases

(380V).

The imbalance in load will not affect the normal operation of the residual current operating circuit

breakers.

The test button can be pushed down to examine whether the circuit breaker works, but it is not

specially used for breaking operation. So do not push it frequently to prevent the test resistance from

being burnt.

If a newly installed circuit breaker is “unwanted tripping”, please examine whether the outlet end of

circuit breaker has been earthed repeatedly or connected wrongly.

For the other notes, please refer to the part of “Use and Maintenance”.

Intelligent electronic module specification

Protection category（1；2；3；4；5） 1：LI: Overload long delay + short circuit instantaneous protection; 2：LSI: Overload long delay + short circuit time delay + short circuit instantaneous protection; 3：LSIP: Overload long delay +short circuit short delay + short circuit instantaneous + pre-alarm protection; 4：LSIG: Overload long delay + short circuit short delay + short circuit instantaneous + ground fault

protection; 5：LCD: Intelligent LCD control，

Specification （1）Protection catagary 1 LI :

■ Two sect current protection (two adjustable values) Overload long time delay protection; Short circuit instantaneous protection;

■ The protection range： Long time delay protection: Ir =（0.4～1.0）In Short circuit instantaneous protection Ii =（3～12）In + OFF

■ Nameplate

■ Protection curve

（2）Protection catagary 2 LSI： ■ Three sect current protection (three adjustable values)

Overload (long time delay) protection (adjustable current, fixed time) Short circuit short time delay protection (adjustable current, fixed time) Short circuit instantaneous protection (adjustable current)

■ The protection range： Overload (long time delay) protection：Ir =（0.4～1.0）In Short circuit short time delay protection：Isd =（2～12）Ir Short circuit instantaneous protection：Ii =（3～12）In+OFF

■ Nameplate

（3）Protection catagary 3 LSIP：

■ Three sects current protection (6 adjustable values) Overload (long time delay) protection (adjustable current and time) Short circuit short time delay protection (adjustable current and time) Short circuit instantaneous protection (adjustable current) Pre-alarm protection (adjustable current)

■ The protection range： Overload (long time delay) protection：Ir =（0.4～1.0）In Overload long delay time protection：Tr= 12S、60S、80S、100S +OFF Short circuit short time delay protection：Isd = （2～10）Ir Short circuit short delay time protection：Tsd= 0.06S、0.1S、0.2S、0.3S Short circuit instantaneous protection：Ii = （3～12）In+OFF Pre-alarm protection：Ip=（0.7～1.0）Ir

■ Nameplate

■ Protection curve

（4）Protection catagary 4 LSIG： ■ Three sects current protection+ground fault protction(6 adjustable values) Notice: Four sects protection.

Overload (long time delay) protection (adjustable current and time) Short circuit short time delay protection (adjustable current and time) Short circuit instantaneous protection (adjustable current) Ground fault protction (adjustable current)

■ The protection range： Overload (long time delay) protection：Ir =（0.4～1.0）In Overload long delay time protection：Tr= 12S、60S、80S、100S+ OFF Short circuit short time delay protection：Isd =（2～10）Ir Short circuit short delay time protection：Tsd= 0.06S、0.1S、0.2S、0.3S Short circuit instantaneous protection：Ii =（3～12）In + OFF Ground fault protction：Ig=（0.2～1.0）In + OFF

■ Nameplate

■ Protection curve：

（5）Protection catagary 5 LCD：

1. Protection function Overload pre-alarm Overload long time delay Short circuit short time delay Short circuit instantaneous Unbalance protection N shunt protection Ground fault protection

2. Auxiliary function Test function(Software/hard ware) Thermal memory function Protection parameter by button setting Fault memory function LCD indication function Pin for paramter inspection or setting Chinese and English operation interface

3. Controller structure and operation

Controller use the button setting, easy operation. The protection setting of current and time for controller should be operated by professional

personnel, save the setting by OK button.

1. External power DC12V interface； 2. LCD； 3. Up button; 4. Down button; 5. Exit; 6. Ok

4. Extension new function

Control pannel

Communication function

Fault memory and check

Motor shunt break inspection and

protection

LCD current indication parameter

setting

UVT & OVT function

Long time delay thermal memory protection

Short time delay thermal memory protection

Intelligent electronic module extension new function

Fire alarm function

Temperature protection function

Dual passive contact output

5. Extension new function

（1）Communication function Controller with RS485 communication interface, support MODBUS-RTU bus protocol, through the

communication protocol conversion module for easy access protocol networks and other distribution automation network, with "remote control, remote transfer, remote telecommunications and telemetry" function, which can realize the long-distance circuit breaker remote operation function and achieve the long-distance power dispatch purpose.

（2）Overload thermal memory function (external power) The thermal memory function of controller can be selected by user; the factory default setting is OFF. The energy of controller thermal memory can be released within 30 minutes.

（3）Short circuit (short time delay) thermal memory function (external power)

Controller (short time delay) short-circuit current protection thermal memory function can be selected by user, the factory default setting is OFF, controller (short time delay) short circuit thermal memory energy can be released within 15 minutes. Note: The thermal memory function requires external power supply (DC12V/2W).ku

（4）External residual current protection function--3P added selectable function. When the detected residual current> Ig, the circuit breaker trip.

（5）Temperature protection function When the ambient temperature over 105 ℃, the circuit breaker trip.

（6）Dual passive contact output Controller has four optical signal output, DO1 and DO2 optical signal can be programmed to function as output, DO3 is "sub-gate signal", DO4 is "switch on signal."

（7）Fault memory function (LCD type)

Controller can memorize the latest 100 times of fault types, such as: a, fault trip time; b, the fault shunt and the maximum fault current records; c, long time delay action value; d, long time delay action time;

Characteristic curve and temperature compensation curve

　■ UEM5-100C,L,M,H； UEM5L-100L,M,H



■ UEM5-800C,L,M,H； UEM5L-800L,M,H

Externality and installation dimension

Back fix

Front fix

Plug in

　

Plug in

Front fix

Back fix

Front fix

Back fix

Plug in

Internal accessories

Under-voltage release The under-voltage release is used for under-voltage protection of circuit and power

equipment. Rated working voltage: AC50Hz, 220V or 380V. With the working voltage of 35%-70% of the rated voltage, the under-voltage release can

make the circuit breaker trip reliably. With the working voltage less than 35% of the rated voltage, the under-voltage release can

prevent the circuit breaker from being switched on. With the working voltage of 85%-110% of the rated voltage, the under-voltage release can

ensure the circuit breaker to work normally. (Note: only after the under-voltage release is energized with the rated working voltage, the

circuit breaker can be switched on. Otherwise, the circuit breaker would be damaged.)

Appearance Wiring

Shunt release The shunt release is used for long distance control of circuit breaker switched off. Rated working voltage: AC50Hz, 220V or 380V; DC 24V or 110V. The shunt release should make the breaker trip reliably when the operation voltage is 70%-

110% of the rated control voltage.

Appearance Wiring

Auxiliary contact and alarm contact The auxiliary contact is used for auto control of circuit breaker’s control loop. For example

the signal of circuit breaker switched on and off. The alarm contact is used for alarm of “free release”, which is caused by over-load and short

circuit of circuit breaker’s load current, and under-voltage fault of circuit and equipment. Rated working voltage: AC50Hz, 220V or 380V; DC 220V.

Input

Input

Auxiliary contact wiring diagram

Breaker position Auxiliary contact Wiring of one group One group：

Rated frame current≤225A

Position “On” Two groups：

Position “Off”

Rated frame currentt≥400A

One group：

Rated frame current≤225A

Two groups：

Rated frame currentt≥400A

Switch off Switch on

Alarm contact wiring

Breaker position Alarm contact Wiring

Position “on” or “off”

Position “free release”

Technical parameter of auxiliary contact and alarm contact

Rated current Ie（A）Type Frame current Conventional thermal current Ith（A） AC380V DC220V

≤225A 3 0.30 0.15 Auxiliary contact ≥400A 3 0.40 0.15

Alarm contact 63A～800A 3 0.30 0.15

External accessories

Motor-driven operation mechanism

Mounted in the circuit breakers, the motor-driven operation mechanism is used for long-distance control of circuit breakers’ close and open. There are three types: DC1, DC2 and DC3. DC1--adopting motor-driven, and applicable to circuit breakers with rated frame current 400A to 800A. DC2--adopting electromagnet-driven, and applicable to circuit breakers with rated frame current 250A or below. DC3- adopting advanced switch power technology and mini type permanent magnetic motor-driven, low working current, and applicable to both AC and DC circuit and circuit breakers with rated frame current 63A-800A.

Dimension (mm) Type P/N Fitting

breaker Rated control voltage (A)

Action current (A) A B H H

DC2-63/UEM5 UEM5-63 ≤5 76 120 85 146DC2-100/UEM5 UEM5-100 ≤7 91 145 85 146

DC2

DC2-225/UEM5 UEM5-225/250

AC220V/AC380V

≤8.5 105 156 89 150DC3-63/UEM5 UEM5-63 ≤0.5 90 132 89 150DC3-100/UEM5 UEM5-100 ≤0.5 90 152 90 151

DC3

C3DC3-225/UEM5 UEM5-225/250 ≤0.5 90 146 92 153DC3-400/UEM5 UEM5-400 ≤2 130 219 151 248DC1/DC3

DC3-630/UEM5 UEM5-800

DC220V (ApplicableDC3) AC220V/AC380V

≤2 130 268 153 250

DC1 外观图 DC1 电操机构外形及接线图

DC2 appearance DC2 externality and wiring

DC3 appearance DC3 externality and wiring

Turning handle operation mechanism The operation mechanism is mounted on the circuit breaker’s cover and applicable to the circuit breaker installed on electric control cubicle. It can make the circuit breaker close, open and re-cramp by turning the handle and has a guide location function to prevent the handle from fracture caused by misoperation or violent operation. Turning handle operation mechanism can divide to: SC1—centre operation mechanism SC2—eccentricity operation mechanism Two types of handle are available for the same mechanism: F-square handle; Y-round handle.

Dimension (mm) Type Fitting breaker A B C D H

SC1-(Y,F)-63/UEM5 UEM5-63 25 111 — — 44.5 SC1-(Y,F)-100/UEM5 UEM5-100 30 132 — — 44.5 SC1-(Y,F)-225/UEM5 UEM5-225/250 35 126 — — 45 SC1-(Y,F)-400/UEM5 UEM5-400 128 195 — — 76 SC1-(Y,F)-630/UEM5 UEM5-800 198 242 — — 76 SC2-(Y,F)-63/UEM5 UEM5-63 25 111 0 35 15

SC2-(Y,F)-100/UEM5 UEM5-100 30 132 11 35 15 SC2-(Y,F)-225/UEM5 UEM5-225/250 35 126 11 35 15 SC2-(Y,F)-400/UEM5 UEM5-400 128 187 15 60 30 SC2-(Y,F)-630/UEM5 UEM5-800 198 242 15 60 30

SC1 appearance SC1 externality

SC2 appearance SC2 externality

Externality of type ”F” square handle and the aperture dimension on the panel sheet (unit: mm)

Externality of type ”Y” round handle and the aperture dimension on the panel sheet (unit: mm)

Note: 1). The short handles are used for breakers with rated frame current 225A or below, and the long

handles are used for breakers with rated frame current 400A or above. 2). The breakers with rated frame current 225A or below should be equipped with 8 x 8 square axes.

The breakers with rated frame current 400A or above should be equipped with 10 x 10 square axes .both square axes are 150mm long.

series mccb series residual mccb series electronic...

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