Siemens GRD121.1U Electronic Damper Actuator 24V Spring Return Fire and Smoke Control voomi_id_130428 The Mueller 289291 Black Pipe

The Mueller 289291 Black Pipe Nipple is a durable and reliable choice for various plumbing applications

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SPST manual humidistat control designed to automate the operation of humidifiers

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Siemens GRD121.1U Electronic Damper Actuator 24V Spring Return Fire and Smoke Control voomi_id_130428 The Mueller 289291 Black PipeProduct Description The Siemens GRD121. 1U is a rigorously designed electronic damper actuator, crafted to automate fire and smoke control systems effectively. This 24V device features a spring return mechanism ensuring reliable functionality in critical safety applications. UL555 555S rated assembly suitable for smoke and fire dampers. Engineered for rapid action with a 30 second opening and 15 second closure at 350 degrees Fahrenheit. Compact design