What an Auxiliary Contact Block Actually Does An auxiliary contact block does not switch the load. It mirrors the contactor’s state as a low-current signal so a control circuit, a relay or a PLC input can see what the main contacts are doing. That distinction is the whole reason aux blocks are ordered separately: they […]
What This Block Actually Does An auxiliary contact block does not switch the load. It mirrors the contactor’s state as a low-current signal so a control circuit or a PLC input can see what the main contacts are doing. The 1NO + 1NC arrangement in this block family gives you both a normally-open and a […]