NFBUP Belimo Actuator

Overview

The Belimo NFBUP is a universal-voltage spring return damper actuator engineered for fail-safe control of air dampers in commercial HVAC systems. It delivers 90 in-lb of torque to reliably position dampers during normal operation and power outages.

Features

• Universal power supply capability accepting 24 to 240 VAC or 24 to 125 VDC
• True spring return mechanism ensures emergency safety positioning on power loss
• Direct coupling design with universal clamp fits damper shafts up to 1.05 inches
• Robust housing engineered for demanding HVAC environments
• Simple On/Off control interface for straightforward installation and operation

Specifications

• Torque: 90 in-lb [10 Nm]
• Control Signal: On/Off
• Supply Voltage: AC 24…240 V / DC 24…125 V
• Fail-Safe Mode: Spring Return
• Direction of Rotation: Reversible

Applications

• On/off fail-safe control of ventilation dampers
• Air handling unit outside air and exhaust dampers
• Commercial building emergency air isolation systems