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 >>

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 >>

CCC certification

All our products are compliant with CCC (China Compulsory Certification). More Details >>

AL/AX direct connection to PLC

It is necessary to use AL and AX switches that are suitable for the specification of PLC input unit. Generally AL and AX switch for micro-load are used for i... More Details >>

AC Breakers used at DC circuit

It is not possible to use a circuit breaker for AC in DC circuit. Since the Arc-Extinguishing Device structure of circuit breaker for DC is different from th... More Details >>

ACB　General use Generator protection use

General protection relay (WS) of AE-SW type Air Circuit Breaker has tripping characteristic and function for general use. However, we also provide the replay... 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 >>

replace AE-SS with AE-SW

(1) and (2) are impossible. More Details >>

Test button

The push button is used for testing whether it definitely trips when an earth leakage current occurs. At this test, a Leakage Display button will be come out... More Details >>

Residual non-operating current

It is a current that does not leak-trip even if there is ground fault current or leakage current. In the standard, it is 50 % of the rated residual operating... More Details >>