Masterpact NW - Does OFF position Key Lock block the contact of remote closing XF contact?

Search FAQs

The function of off position lock on ACB Masterpact NW is to lock the circuit breaker in OFF position by physically maintaining the opening pushbutton pressed down.

In this condition you will see ACB status Charged & not OK.

You can not switch on the ACB by giving command to XF also while Off position key lock accessories is to lock the circuit breaker in OFF position .