BELIMO NFA-S2 Spring-Return Damper Actuator (NFA Series)

• Torque (Motor & Fail-Safe): 10 Nm
• Control Type: Open/Close (On/Off)
• Running Time (Motor): 75 seconds for a 90° rotation
• Running Time (Fail-Safe): < 20 seconds at room temperature via spring tension
• Auxiliary Switches: 2x SPDT (Single Pole Double Throw) integrated switches for position feedback (one fixed at 10%, one adjustable from 11…90%).
• Power Consumption: 6 W in operation / 2.5 W in rest position
• Enclosure Rating: IP54 / UL Enclosure Type 2
• Shaft Mounting: 10…25.4 mm universal shaft clamp with an anti-rotation mechanism
• Normal Operation: The actuator moves the damper to its operating position while simultaneously tensioning its internal return spring.
• Fail-Safe Mechanism: If the supply voltage is interrupted, the actuator automatically turns the damper back to its safe emergency position using spring force.

Brand New BELIMO NFA-S2 Actuator. In stock — ships worldwide within 5-10 days.

1-year warranty against manufacturing defects. Contact us for pricing — reply within 24 hours.