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100A AC 400V 2P Moulded Case Circuit Breaker

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  • WCM4

Key Information

WCM4

Pole: 3P, 4P

Voltage: AC400V

kA: 35-70kA

Inm(A): 100, 250, 400, 630

In(A): 25, 40, 50, 63, 80, 100, 125, 160, 200, 225, 250, 350, 400, 500, 630, 700, 800, 1000, 1250

General

WCM4 sereis moulded case circuit breaker (MCCB for short) is the new type of product with top current limiting principal and manufacture technology in design, is tight in structure, total molularized, high breaking capacity, zero flashover. It applies at AC50Hz, rated operation voltage 690V and below, rated operation current upto 1250A for infrequent switch of line and infrequent start of motor. MCCB has overload, short circuit and under voltage protection device, to protect line and power device from demage.
MCCB is divided into Type S (Standard), Type H (higher breaking capacity), Type L (current limiting) according to rated ultimate short circuit breaking capacity (Icu) ranking.

Main technical parameters

Model

Frame level rated current Inm (A)

Current rating (A)

Rated operation voltage Ue (V)

Rated insulation voltage Ui (V)

Rated ultimate short circuit breaking capacity Icu (kA) AC400V

Rated operation short circuit breaking capacity Icu (%Icu)

Operation performance (times)

Power on

Power off

WCM4-100S

100

25, 40, 50, 63, 100

690

750

35

22%

1500

8500

WCM4-100H

70

75%

WCM4-160S

160

125, 160

690

750

50

25%

1000

7000

WCM4-160H

70

75%

WCM4-250S

250

200, 225, 250

690

750

36

75%

1000

7000

WCM4-250H

70

75%

WCM4-400S

400

350, 400

690

750

50

35%

1000

4000

WCM4-400H

70

75%

WCM4-630S

630

500, 630

690

750

50

35%

1000

4000

WCM4-630H

70

75%

WCM4-1250S

1250

630, 700, 800, 1000, 1250

690

750

50

35%

1000

4000

WCM4-1250H

70

75%



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