Schneider Electric 3S1F Transformer

Schneider Electric's Square D 3S1F is a compact, dry-type transformer rated at 3 kVA with dual primary windings (240/480 VAC) and a 120/240 VAC secondary, designed for single-phase service. It is resin-sealed and totally enclosed, suitable for wall mounting in commercial or light industrial environments, and packaged in a painted steel housing with a NEMA 3R enclosure for outdoor or damp locations. Rated for 60 Hz operation, it provides a reliable step-down from a 240/480 VAC source to 120/240 VAC for control circuits, lighting, and auxiliary equipment. Physical specs include approximately 8.6 in wide, 6.5 in deep, and 10.5 in tall, with a weight around 60 lb. Typical installations use this transformer for general power distribution in buildings, supplying 120/240 VAC auxiliary circuits from 240/480 VAC sources.