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

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

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

The rated operational voltages for them are 200 to 440VAC. If using them in 100VAC or 110VAC circuit, earth-leakage prot

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

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

Basically you have to consider the effect of harmonic waves, but there are two ways as below. 1. Refer to the recommende

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

It means a space between the edge of a exhaust port and panel component ( such as wall or duct) of a circuit breaker. Th

Operating characteristics described in our catalog (if there is no "Note" particularly) mean operating time when it star

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Low-voltage Circuit Breakers

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FAQ within [ Low-voltage Circuit Breakers ]

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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
- Category： Air Circuit Breakers
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
- Category： Molded Case Circuit Breakers
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
- Category： Molded Case Circuit Breakers
4-pole type in 100VAC or 110VAC

The rated operational voltages for them are 200 to 440VAC. If using them in 100VAC or 110VAC circuit, earth-leakage protection does not operate. More Details >>
- No：24820
- Release Date：2019/04/09 15:10
- Category： Earth Leakage Circuit Breakers
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
- Category： Air Circuit Breakers
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
- Category： Molded Case Circuit Breakers
How to select at Inverter circuit

Basically you have to consider the effect of harmonic waves, but there are two ways as below. 1. Refer to the recommended rated current by inverter manufactu... More Details >>
- No：22360
- Release Date：2018/08/31 14:33
- Category： Molded Case Circuit Breakers
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
- Category： Molded Case Circuit Breakers
Arc space

It means a space between the edge of a exhaust port and panel component ( such as wall or duct) of a circuit breaker. The arc space is needed for smoothly di... More Details >>
- No：22373
- Release Date：2018/08/31 14:33
- Category： Molded Case Circuit Breakers
Hot start characteristics

Operating characteristics described in our catalog (if there is no "Note" particularly) mean operating time when it starts to carry current from the conditio... More Details >>
- No：22374
- Release Date：2018/08/31 14:33
- Category： Molded Case Circuit Breakers

41-50 of Total 123

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