Molded in glass-filled PBT rated 94V-0 plastic, the polarized WPJ series housings incorporate a secure inner locking device to prevent accidental disconnection due to routing of wires or vibration and are offered in three different keying patterns. Available in 2 and 3 circuits, the locking mechanism is designed for a secure and stable connection ideal for high vibration applications. An audible click is heard when mating the receptacle housing assembly with the mating half. The wire-to-wire version is offered in a free-hanging configuration.