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800A AC400V 2P 100mA Earth Leakage Circuit Breaker

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  • WCM1L

Key Information

WCM1L

Pole: 2P, 3P, 3P+N,4P

Voltage: AC230V/400V

kA: 35-75kA

Inm(A): 100,125, 250, 400, 800

In(A): 10A-800A

 General

WCM1L series residual current protection moulded case circuit breaker (RCCB for short) is one new breaker researched and developed by advanced international design and manufacture technology of the company. The rated insulation voltage 800V, applies AC50Hz, rated operation voltage 400V, rated operation current upto 800A for infrequent switch of the line and infrequent start of the motor. RCCB has protection functions to overload, short circuit and under voltage, to protect the line and power device from deamge, also make protection to the fire caused by grounding fault at long time that undetected under over current.

RCCB is divided into type M (higher breaking), and type H (very high breaking), has features of smal volume, high breaking, short flashover, vibration resistance, etc.,

Main technical parameters

Model

WCM1L-125

WCM1L-250

WCM1L-400

WCM1L-800

Frame current Inm (A)

125

250

400

800

Rated current In (A)

(10), 16, 20, 25, 32, 40, 50, 63, 80, 100, 125

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

225, 250, 315, 350, 400

400, 500, 630, 700, 800

Pole (P)

2

3

4

2

3

4

3

4

3

4

Rated insulation voltage Ui (V)

AC800

Rated operation voltage Ue (V)

AC400

Rated impulse withstand voltage Uimp (V)

8000

8000

8000

8000

Flashover distance (mm)

≯50

≯50

≯100

>100

Breaking capacity rank

M

H


M

H


M


M


Ultimate short circuit breaking capacity Icu (kA)

AC 400V

35


50

35

50


50

50

Operation short circuit breaking capacity Ics (kA)

AC 400V

22


35

22

50


35

35

Rated residual operation current IΔn (mA)

Non-delayed type

100/300/500

-

Delayed type

100/300/500

300/500/1000

Rated residual non-action current IΔno (mA)

IΔn/2

Rated residual short circuit connecting (breaking capacity IΔm (kA)

Icu/4

Operation performance (times)

Power-on

1500

1000

1000

1000

Power-off

8500

7000

4000

4000

Shunt release

>

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Under voltage release

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Leakage alarm unit modular

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Auxiliary contact

>

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Alarm contact

>

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Motor-driven operation mechanism

>

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Rotating handle operation mechanism

>

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Notes: 1. It includes vertical and horizontal installation of ultimate breaking and flashover distance; 

            2. Three poles circuit breaker of this series connects with three phase loading, of which can not be with neutral line, otherwise the circuit breaker will make fault operation; 

            3. Three poles circuit breaker of this series connects with three phase loading, phase line at left pole, neutral line at right pole not the middle pole.

 


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