Belimo NFBUP-S Spring Return Damper Actuator in-lb - 90 24-240V

The Belimo NFBUP-S is a spring return damper actuator designed for reliable control of HVAC dampers in commercial building automation systems. This versatile actuator operates on universal voltage (24/120/240VAC), eliminating the need for multiple models and simplifying inventory management.

Key Features:

• Spring return operation ensures fail-safe positioning during power loss
• 90 in-lb (7 Nm) torque rating for controlling medium to large dampers
• Universal voltage: 24/120/240VAC for flexible installation
• On-off control for simple two-position damper operation
• One auxiliary switch for status indication or interlock functions
• Direct replacement for legacy Belimo NF12 model
• Durable construction for long service life in commercial HVAC applications

Ideal for applications requiring fail-safe damper positioning such as smoke control, outside air dampers, and isolation dampers. The spring return mechanism automatically moves the damper to a predetermined safety position when power is interrupted, providing critical protection for HVAC systems.