About Low-voltage Power Distribution ...

For other coil designation, it can be calculated as below.1. For S-T* and S-N* type (AC operation type)(1) Input (Instantaneous, constant) power consumption ... More Details >>

Degree of protection

In order to prevent breakdowns and human injuries, it is necessary to select a control device having protection structure suitable for each purpose. The prot... More Details >>

Release element in neutral (4P breaker)

AE-SW 4-poles with WS relay (general protection) has overcurrent protection for neutral-pole. The tripping characteristic is same as phase-pole. Moreover, A... More Details >>

ACB How to store drawout handle

Set the handle holder to the right side of the drawout frame with the included screw and nut, and store the drawout handle. However, the circuit breaker with... More Details >>

ACB　installation type

There are Fixed type and Drawout type. More Details >>

ACB How to check the operating chara...

Y-2005 type field test equipment (it is sold separately) enable to check the operating characteristic easily. The test is conducted by connecting the test te... More Details >>

ACB　add earth leakage protection

When earth leakage current protection module (ER) is attached, it is possible to protect against earth leakage current. "Trip" or "Alarm signal output" can b... More Details >>

Where UVT power supplied from?

Do not take the control power supply of UVT ("Resettable type" and "Reset prevention type") from the secondary side of the breakers. If taking the control po... More Details >>

How to use TBM

It is an internal accessory to test the earth leakage tripping operation by applying voltage remotely. It is possible to make the same control sequence as th... More Details >>

Default setting from the factory

The knob of the sensitivity current selector is set to the maximum value when shipping in order to prevent unwanted earth leakage tripping when Earth Leakage... More Details >>