Rated current sensitivity

It is an earth leakage current (Effective value of residual operating current) which definitely trips Earth Leakage Circuit Breaker and Earth Leakage Relay ... More Details >>

How to use SHT

A shunt trip (SHT) is an internal accessory which electrically and remotely trips a circuit breaker. When the supply voltage of the SHT is remained between 7... More Details >>

Fixed-type and Adjustable-type of V-t...

For Fixed type, the depth from the circuit breaker mounting surface to the panel board front is fixed. Adjustable-type is used when the depth from the circui... More Details >>

ELCB reverse connection

Almost ELCBs can be connected n reverse. Check the item column of specification table "reverse connection (below 230 V AC)" in the catalog. If it says "Possi... More Details >>

ACB trip indication

Generally, there is no Mechanical Trip indication of continuous output for AE-SW. It is necessary to indicate electrically by using OCR Alarm (AL) output or ... More Details >>

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 >>

Electronic MCCB 400-1600A How to ch...

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 >>

F-type and V-type operating handle

Both of F-type and V-type can remotely operate a circuit breaker in the panel board and the design of 800A fame or less are unified. Features are as follows.... More Details >>

Trip button

It is a button in order to mechanically trip a circuit breaker outside. It is used to confirm switching mechanism at the regular maintenance or sequence-chec... More Details >>

Rated current sensitivity

Earth Leakage Circuit Breaker and Earth Leakage Relay operate at higher than 50% but not exceeding 100% of the rated residual operating current IΔn. The eart... More Details >>