Abstract: A field configurable contactor is disclosed. The contactor preferably includes a plurality of spaces adapted to receive any number, up to its limit, of contact modules. Each contact module preferably includes a pair of contacts and a spring biased cam follower which opens and closes the contact pair when a cam profile of the contactor moves according to energization or de-energization of the contactor. The contact module can be either “normally open” or “normally closed” depending on its initial placement onto the contactor relative to the cam profile. A latch assembly in the contactor may hold the contactor mechanically during de-energization.

Abstract: A multiple pole sub-feed for a panel board is disclosed. The sub-feed of the present invention includes extension bus bars which connect to the bus bars of the panel board and preferably linearly extend the length of the sub-feed. The sub-feed further includes bus connectors supported generally perpendicular to the extension bus bars and preferably extending the width of the sub-feed. The design allows for a plurality of poles of sub-feed to be accommodated by adding bus connectors to the end of the sub-feed, where each bus connector includes an opening for electrically connecting to one of the extension bus bars. Current passes from the extension bus bars to a metal retainer connecting the bus connector to the extension bus bars, to a current carrying strap in the bus connectors, to a current carrying spool located in a turret on the bus connectors, and then to a circuit breaker positioned above the bus connector about the turret.

Abstract: A circuit breaker lighting panelboard is adapted for both top and bottom feed connections with no field modification requirements. The panelboard interior accepts a variety of branch circuit breaker mounting arrangements and the mounting rails are interconnected by steel straps to reduce shipment damage.

Abstract: A two-piece extruded aluminum alloy housing is shaped to provide support and ground conduction facility to power busway conductors contained therein. The two-piece housing is attached together with snap-fit connectors along its top and bottom surfaces. The housing is attached to the busway power conductors by means of insulated bolts. The bolts may be hollow so that air can flow through the bolts to aid in cooling the conductors within the housing by convection.