Overview
The Belimo AFRBUP-S is a spring-return damper actuator with dual auxiliary switches, engineered for On/Off fail-safe damper control. It operates on universal voltage and provides exact position feedback.
Features
- Built-in 2 x SPDT auxiliary switches for end-stop position signaling
- Mechanical spring return fail-safe action under power loss
- Universal voltage input compatibility
- Cable electrical connection for simple wiring implementation
- IP54 and NEMA 2 weather-resistant enclosure
Specifications
- Actuator Type: Spring Return Fail-Safe
- Control Type: On/Off
- Auxiliary Switches: 2 x SPDT
- Angle of Rotation: 90°
- Power Consumption: 7 W (Running), 3.5 W (Holding)
- Fail-Safe Time: <20 s
- Protection Rating: IP54, NEMA 2
Applications
- Fail-safe damper regulation with electrical position feedback
- Commercial air distribution and ventilation damper control
- Life safety and building automation control systems



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