Spring Return Fail-Safe, Proportional Damper Control Actuator - 24V (No Aux Switch)

Belimo's new NFB and NFX Series sets a new standard for direct-coupled spring return actuators in the HVAC market. A compact size, low power consumption and 50% increase in minimum torque output set the new NFB and NFX apart from other market solutions. More torque combined with faster running times for both motor drive and spring return widen the application fields giving customers a cost effective solution with high quality.

Features:

• 90 in-lbs (10 Nm) min. torque. 50% more than original NF
• New smaller housing for tight spaces, plus reduced shaft-center to edge distance: 1.25" compared to 1.97" with today's NF
• Improved motor run time
• Improved spring return time
• Manual override is now standard on all models. Provides same benefits as AF Series; faster installation and easier maintenance of equipment with lock-in place switch
• Built-in mechanical limit stop