Ground fault protection (GFR) is prepared as option, it is possible to detect and protect against ground fault current.

It is forbidden to change the characteristic when the breaker ON. Over current trip and earth leakage trip characteristi

It is special relay characteristic for selective co-ordination. When closing ACB (changing from OFF to ON), the instanta

It is a standard equipment (automatic reset type) and 30ms of one-pulse is output at overload tripping. Hold-type circui

The rated current is standard value for continuous current, short time delay current and instantaneous current. Continuo

The test position is a position where a main circuit is in the "disconnected" state and only control circuit is in the "

The time between application of voltage to the closing coil (CC) and closing of the main contact is 0.08 sec or less.

There are Fixed type and Drawout type.

This contact(SBC) is used to auxiliary switch(AXb) contact. When Drawout type ACB is moved from "test" position to "disc

Flatness of mounting plane: 1 mm or less. In addition, it is necessary to consider the horizontality of the panel.

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FAQ within [ Air Circuit Breakers ]

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ACB Ground fault protection

Ground fault protection (GFR) is prepared as option, it is possible to detect and protect against ground fault current. "Trip" or "Alarm signal output" can b... More Details >>
- No：22412
- Release Date：2018/08/31 14:33
Setting change operation while power is on

It is forbidden to change the characteristic when the breaker ON. Over current trip and earth leakage trip characteristics should be changed by a person with... More Details >>
- No：37699
- Release Date：2020/01/18 09:58
ACB How to use MCR

It is special relay characteristic for selective co-ordination. When closing ACB (changing from OFF to ON), the instantaneous tripping characteristic is effe... More Details >>
- No：22402
- Release Date：2018/08/31 14:33
ACB　OCR alarm

It is a standard equipment (automatic reset type) and 30ms of one-pulse is output at overload tripping. Hold-type circuit is necessary since the output time ... More Details >>
- No：22428
- Release Date：2018/08/31 14:33
Rated current and continuous current

The rated current is standard value for continuous current, short time delay current and instantaneous current. Continuous current is non-breaking current (c... More Details >>
- No：22371
- Release Date：2018/08/31 14:33
ACB　test position

The test position is a position where a main circuit is in the "disconnected" state and only control circuit is in the "connected" state. Control circuit che... More Details >>
- No：22405
- Release Date：2018/08/31 14:33
ACB closing time

The time between application of voltage to the closing coil (CC) and closing of the main contact is 0.08 sec or less. More Details >>
- No：22440
- Release Date：2018/08/31 14:33
ACB　installation type

There are Fixed type and Drawout type. More Details >>
- No：22430
- Release Date：2018/08/31 14:33
ACB　Shorting B contact (SBC)

This contact(SBC) is used to auxiliary switch(AXb) contact. When Drawout type ACB is moved from "test" position to "disconnect" position, AXb contact will b... More Details >>
- No：22416
- Release Date：2018/08/31 14:33
Horizontal allowable distance when installing ACB

Flatness of mounting plane: 1 mm or less.In addition, it is necessary to consider the horizontality of the panel. More Details >>
- No：37698
- Release Date：2020/01/17 17:32

1-10 of Total 23

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