Square D 8903LG20 Enclosed Lighting Contactor

Square D 8903LG20 enclosed lighting contactor is a two‑pole, 30 A switching device rated for up to 600 V, housed in a NEMA 1 painted sheet‑steel enclosure for indoor service. It is designed to electrically hold a lighting circuit, with two normally open contacts, UL/CSA listed for control of fluorescent and general lighting loads in commercial or industrial installations, and it mounts on a surface for easy integration into panels or lighting racks. The enclosure typically measures about 7.81 in wide, 12.69 in high, and 6.03 in deep, using screw‑clamp terminals suitable for copper or aluminum conductors. Coil voltage options span common control voltages, including 24/60 VAC (V01), 110/120 VAC (V02C) for 50/60 Hz systems, 277 VAC (V04), and 440/480 VAC (V06), enabling compatibility with a wide range of control circuits. This family is commonly used to switch indoor lighting banks, offices, and other general lighting loads, offering reliable, electrically held operation in a compact enclosure and the Square D/Schneider Electric brand backing.