IEC 60947-2 is an international standard for circuit breakers. The rated voltage for the applicable circuit breaker is 1

The range of ambient temperature is from -10 to 40 degree Celsius for not only MCCB but also including Earth Leakage Cir

Almost MCCBs can be connected n reverse. Check the item column of specification table "reverse connection" in the catalo

It is a method which breaks short circuit current with both upstream and downstream circuit breakers. For example, in th

A circuit breaker must have interrupting ratings. These are classified as rated short-circuit breaking capacities in IEC

It is a characteristic that operating time inversely become shorter as current increases. For Molded Case Circuit Breake

When it is connected as special connection, AC/DC compatible circuit breaker can be used with DC 250V or more (3-pole ty

First, turn OFF the upstream circuit breaker and the relevant circuit breaker. You must not work in the state where volt

Bar terminal material for 400A is aluminum alloy, and for 630A or higher is copper.

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FAQ within [ Molded Case Circuit Breakers ]

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IEC60947-2 standard

IEC 60947-2 is an international standard for circuit breakers. The rated voltage for the applicable circuit breaker is 1000V AC or less, or DC 1500V DC or le... More Details >>
- No：22361
- Release Date：2018/08/31 14:33
Ambient temperature

The range of ambient temperature is from -10 to 40 degree Celsius for not only MCCB but also including Earth Leakage Circuit breaker, Earth Leakage Relay and... More Details >>
- No：22352
- Release Date：2018/08/31 14:33
MCCB Reverse connection

Almost MCCBs can be connected n reverse. Check the item column of specification table "reverse connection" in the catalog. If it says "Possible", MCCB can be... More Details >>
- No：22442
- Release Date：2018/08/31 14:33
Cascade breaking

It is a method which breaks short circuit current with both upstream and downstream circuit breakers. For example, in the case that short circuit current at ... More Details >>
- No：22357
- Release Date：2018/08/31 14:33
Interrupting ratings

A circuit breaker must have interrupting ratings. These are classified as rated short-circuit breaking capacities in IEC 60947-2.e rated ultimate short-circu... More Details >>
- No：22341
- Release Date：2018/08/31 14:33
Inverse time delay operating characteristic

It is a characteristic that operating time inversely become shorter as current increases. For Molded Case Circuit Breakers, protection characteristic meeting... More Details >>
- No：22387
- Release Date：2018/08/31 14:33
Max. operational voltage for AC/DC Common

When it is connected as special connection, AC/DC compatible circuit breaker can be used with DC 250V or more (3-pole type is DC400V and 4-pole type is DC500... More Details >>
- No：22445
- Release Date：2018/08/31 14:33
Electronic MCCB 400-1600A How to change rated current and characteristic curve (Except CE breakers)

First, turn OFF the upstream circuit breaker and the relevant circuit breaker. You must not work in the state where voltage is applied to the relevant circui... More Details >>
- No：22439
- Release Date：2018/08/31 14:33
- Update：2018/08/31 14:35
MCCB bar terminal material

Bar terminal material for 400A is aluminum alloy, and for 630A or higher is copper. More Details >>
- No：24819
- Release Date：2019/04/09 15:13
Rear stud (B-ST) installed

B-ST is possible. More Details >>
- No：24814
- Release Date：2019/04/09 15:17

1-10 of Total 49

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