Siemens Building Technology 331-2905 Actuator R-407A it ensures seamless physical fitment

it ensures seamless physical fitment and electrical compatibility

the plug-and-play wiring harness minimizes labor time while ensuring secure electrical connections

It will automatically re-engage the heating circuit once the temperature drops below the 50°F reset threshold

depending on the specific orifice size and media type utilized in the system

the yellow color-coding ensures rapid identification for technicians during regulator spring replacement or system commissioning

Siemens Building Technology 331-2905 Actuator R-407A it ensures seamless physical fitmentThe Siemens Building Technology 331 2905 is a professional grade No. 4 Pneumatic Damper Actuator engineered for the gradual or positive control of outdoor air, return air, and exhaust dampers. As a veteran preferred HVAC pneumatic actuator, this unit features a rugged all metal body and a 4 inch stroke designed for longevity in demanding ventilating systems and terminal units like unit ventilators and mixing boxes. This model is equipped with an