Schneider Electric 8903L040 Lighting Contactor

Schneider Electric's Square D 8903L040 Lighting Contactor is a Type L, electrically held four‑pole (4P) lighting contactor with four normally open contacts (4NO) for switching lighting and other resistive loads in commercial or industrial panels. It supports up to 600 VAC on the main circuit and uses a 120 VAC coil (50/60 Hz), aligning with common 110/120 V control circuits. The 8903L040 family includes enclosed variants suitable for panel installations, and it is part of the 8903 multipole lighting contactor line designed for four‑pole configurations that enable simultaneous switching of multiple conductors. Typical applications include control of lighting banks in commercial buildings, signage, and other high‑voltage lighting installations where a compact, four‑pole arrangement is advantageous.