powerCON NAC3MPXXA (power in) - powerCON NAC3MPXXB (power out), CBC coupler for linking power cables with NAC3FXXA/B. The powerCON is a locking 3 conductor equipment AC connector with breaking capacity using contacts for line, neutral and pre-mating ground contact. It replaces appliance couplers wherever a very rugged solution in combination with a locking device is needed in order to guarantee a safe power connection.