... 3.used to enlarge number for auxiliary contact pairs Application: LA1 series auxiliary contactor can be fixed onto the ac contactor to add ... ,02,20,13,22,40,04.LA1-DN series auxiliary contacts can be fixed on top of JZC4 series relays, to add ... ’s sliding contact function ensures electric circuit can be put through. F4 series auxiliary contacts are divided into 8 specification: F4-11 ...