Siemens 52PL4G2XY Pilot Light Transformer 120V LED

Siemens 52PL4G2XY Pilot Light Transformer is a 30 mm, oil-tight transformer-type indicator that powers a red LED pilot light from a 120 V AC supply. With a plastic BA9s-style lens housing a red LED module, it mounts in standard 30 mm control-panel cutouts and is UL Listed and CSA Certified. Designed for industrial environments, this unit supports indicator visibility in NEMA 1, 3, 3R, 4, 4X, 12, and 13 enclosures when installed in appropriate housings, thanks to its oil-tight construction. Part of the Siemens US2 family, the 52PL4G2XY uses an integrated transformer to drive an LED indicator at 120 VAC, making it suitable for control panels, relays, PLC interfaces, and other equipment requiring a reliable red status signal. The compact, rugged module merges transformer functionality with a bright red LED in a single unit, enabling retrofits from incandescent indicators to energy-saving LED signaling without changing panel footprint.