The 99 0609 00 04 is a 4-contact 250V/6A unshielded straight miniature male Circular Connector with silver-plated brass contacts, PBT (UL94V-0) contact body and PA (UL94V-0) housing. The 678 series plug with Bayonet locking system, solder termination, front mounting style. It accepts 20AWG (0.75mm2) wire.