Siemens 52SA2BAB 3 Position Maintained Selector Switch

Siemens 52SA2BAB is a 30 mm panel-mounted selector switch with three maintained positions and a B cam, engineered for rugged industrial control panels where a durable, non-illuminated mode selector is required. The unit features a solid metal housing suitable for mounting in standard 30 mm cutouts, a short lever for compact actuation, and a white, non-illuminated operator insert; it is UL-listed under UL File E22655, indicating compliance with applicable safety standards. The 52SA2BAB uses the B cam profile to define its three discrete maintained positions, offering predictable detent points essential for secure state changes, and it is designed for panel applications where reliable, non-illuminated selection is needed in control loops. As part of Siemens' 52 family of 30 mm pilot devices, this switch integrates with other 52-series controls and is intended for use in industrial machinery and automation panels where a compact, robust three-position selector supports consistent operator interaction without illumination.