Locking AC mains cable connector keyed and colour coded (blue) for power-in screw terminal assembly for cable diameters 10-16mm. The powerCON FXXA/FXXB is a single phase (3 conductor) lockable power connector with Circuit Breaking Capability when mated with powerCON XX Series receptacles. It replaces appliance couplers wherever a very rugged solution in combination with a locking device is needed to guarantee a safe power connection. Manufacturers part code: NAC3FXXB-W-L Power-in (blue) and power-out (grey) versions with different keying to avoid the possibility of intermating Locking 20A / 250V AC appliance coupler 3 contacts for line neutral and premating safety ground Easy to assemble because the strain relief locks with the insert mechanically and aligns with the housing Easy and reliable twist lock system Ergonomic design with slip-proof two-component moulded housing Superior NEUTRIK quality standard extremely robust and reliable Improved kink protection by two-component bushing Unique NEUTRIK locking bushing and strain relief for cable diameters 10mm to 16mm