Square D By Schneider Electric 8903-SMO-11AK Lighting Contactor

Square D by Schneider Electric 8903-SMO-11AK is a 3-pole, 30 A Type S lighting contactor designed for open-style, mechanically held operation in lighting-control circuits, delivering reliable switching for 120 V AC lighting loads. This device belongs to the 8903 Type S family, which supports UL-listed short-circuit ratings and can be expanded with add-on pole kits to create 4- or 5-pole configurations when needed. Variants in the 8903SMO11 line are offered with coil voltages in the 120 V AC range at 50/60 Hz, and the open-style construction suits cabinet mounting in commercial or industrial lighting panels and other 120 VAC installations. Typical applications include building lighting control, stage lighting circuits, and other automated lighting systems that require a compact, mechanically latched control element capable of alternating or maintaining energization through a coil.