Siemens GBB Modulating, NSR, 221 lb-in, Rotary Electric Actuator w/ Auxiliary Switches & Span/Offset (24 Vac)

This model comes with Dual Auxiliary Switches and Span/Offset. The OpenAir direct coupled 24 Vac non-spring return (NSR) rotary electric actuator is designed for modulating control of building HVAC dampers. These actuators are used in constant or variable air volume installations for the control of supply return air, mixed air, exhaust, rooftop units, and face and bypass dampers requiring up to 221 lb-in (25 Nm) torque or 310 lb-in (35 Nm) torque. Features: Built-in feedback on modulating units Unique self-centering shaft coupling All metal housing Two torque ranges available Manual override Offset and span adjustment models available Independently adjustable dual auxiliary switches available UL, cUL and CE listed