Abstract: An electrical connector device comprising one or more conductive metal connector elements and a two part insulator block having one or more parallel, longitudinal passages to accommodate therein the connector elements. Each connector has crimping ears on one end and a tubular barrel with locking barbs on the other end so as to permit one wire to be mechanically crimped into position and the other wire to be simply plugged in without use of any additional add-on device. The subject device is especially adapted for mounting on a circuit breaker panel so as to permit the individual circuit breakers to be prewired to individual connector devices. This permits actual wiring of the circuit breaker box to the external cables by a simple and secure plug-in operation.