Schneider Electric 2959S13W30B is a replacement unlatching coil for Square D 8903 Type S lighting contactors (SMO/SP). It is a 110/120 V AC coil rated for 50/60 Hz operation with a nominal 120 V AC at 60 Hz and consumes 80 VA of coil power. Designed for 30–60 A lighting loads, this coil is compatible with 8903SM and 8903SP variants to energize and release the contactor in lighting control circuits.
