It is a tripping zone which instantly trips, when significantly overcurrent such as short-circuit currents flow.

The degess of protection for ACB is IP20 as standard (under the condition that front door is closed). For MCCB and ELCB,

At time-delay tripping zone, it operates with bimetal, therefore the characteristics of AC and DC should be same if the

It is a protection method which only trips the related circuit breaker and other fault-free circuit does not trip and co

1. The internal resistance (per pole) is described in the catalog and technical notes. 2. Power consumption (W) = RI^2 x

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

It is possible to modify to Rear-connection type by Mitsubishi's certified staff.

(1) When "N" is marked on the breaker,connect the N phase wire as marked. (2) When "N" is not marked on the breaker,

Each setting knob of the overcurrent trip characteristic is set to the maximum value and then shipped if not specified.

No, you must not use 2-pole circuit breaker as 1-pole circuit breaker (series connection as only single phase ). If usin

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FAQ within [ Molded Case Circuit Breakers ]

21-30 of Total 49

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Instantaneous tripping

It is a tripping zone which instantly trips, when significantly overcurrent such as short-circuit currents flow. More Details >>
- No：22363
- Release Date：2018/08/31 14:33
degrees of protection to　 IEC60529

The degess of protection for ACB is IP20 as standard (under the condition that front door is closed). For MCCB and ELCB, the degrees of protection can be IP2... More Details >>
- No：24812
- Release Date：2019/04/09 15:18
Inst tripping current value of AC/DC common breaker

At time-delay tripping zone, it operates with bimetal, therefore the characteristics of AC and DC should be same if the effective values of them are same. Ho... More Details >>
- No：22392
- Release Date：2018/08/31 14:33
Selective coordination

It is a protection method which only trips the related circuit breaker and other fault-free circuit does not trip and continues power supply in the event of... More Details >>
- No：22366
- Release Date：2018/08/31 14:33
Calorific value of the circuit breaker

1. The internal resistance (per pole) is described in the catalog and technical notes. 2. Power consumption (W) = RI^2 x Poles = Resistance (Ω) x Load curre... More Details >>
- No：38025
- Release Date：2021/01/22 17:39
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
Front to rear connection

It is possible to modify to Rear-connection type by Mitsubishi's certified staff. More Details >>
- No：22399
- Release Date：2018/08/31 14:33
How to connect to 2-pole breaker

(1) When "N" is marked on the breaker,connect the N phase wire as marked. (2) When "N" is not marked on the breaker, N phase wire can be connected to eith... More Details >>
- No：37700
- Release Date：2020/01/17 08:58
Default setting of electronic breakers

Each setting knob of the overcurrent trip characteristic is set to the maximum value and then shipped if not specified. However, only the pre-alarm is set to... More Details >>
- No：22438
- Release Date：2018/08/31 14:33
2P MCCB only 1-pole use

No, you must not use 2-pole circuit breaker as 1-pole circuit breaker (series connection as only single phase ). If using it as 1-pole circuit breaker, these... More Details >>
- No：22382
- Release Date：2018/08/31 14:33

21-30 of Total 49

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