Siemens 3SU1051-6AA40-0AA0 Indicator Light

Siemens 3SU1051-6AA40-0AA0 is a 22 mm round indicator light from the SIRIUS ACT family, built with a metal housing and a green smooth-lens face for clear status signaling in control panels. Designed for front-panel mounting in electrical cabinets and automation enclosures, it fits standard 22 mm DIN cutouts and presents a compact, durable indicator head with a height of about 29.45 mm. The unit is rated for operation across a broad industrial temperature range, from -25 to +70 °C, enabling reliable visibility in varied environments. In use, this green pilot light provides a visual cue for machine status, process readiness, or signaling conditions within automation circuits, helping operators quickly assess system conditions at a glance. As a genuine Siemens indicator light, it adheres to the SIRIUS ACT line’s design language and maintains a consistent appearance and footprint with other 22 mm indicators on the panel.