Abstract: A modular electrical conductor system for electrical wiring including one or more discrete elongated generally rectilinear track or carrier members and a plurality of modular electrical elements which are selectively connectable with the carrier members to establish a selected electrical circuit, the various carrier members and modular elements having preassembled electrical conductors carried therein such that ends of the conductors are adapted for mating electrical connection while being continually shielded from contact by an installer.

Abstract: An electrical power track system includes an elongated tubular track carrying elongated electrical conductors internally thereof and having a relatively narrow longitudinally extending slot formed in the track to enable access to the conductors but inhibiting insertion of fingers and the like into the track. A gripper device is adapted for mounting on the track and has a thin fin-like extension adapted for insertion into the track slot. The gripper device carries descrete electrically conductive L-shaped contacts spaced along the fin-like extension for movement between retracted positions within the extension to enable insertion into the track slot, and extended positions engaging the track conductors when the gripper device is mounted on the track. An actuator carried by the gripper device enables selective movement of the contacts between their retracted and extended positions, and a locking member releasably secures the gripper device on the track.