Product Description
. . . . . Belimo NF24-S Spring Return Fail-Safe, On/Off Damper Control Actuator, Direct Coupled, 24 VAC/DC
The NF24-S is used for On/Off, fail-safe control of dampers in HVAC systems. Actuator sizing should be done in accordance with the damper manufacturer's specifications. Control is On/Off from an auxiliary contact, or a manual switch.
The NF series actuators provide true spring return operation for reliable fail-safe application and positive close off on air tight dampers. The spring return system provides constant torque to the damper with, and without, power applied to the actuator.
The NF24-S version is provided with 1 built in auxiliary switch. This SPDT switch is provided for safety interfacing or signaling, for example, for fan startup. The switching function is adjustable between 5° and 85°.. Belimo. Belimo. NF24-S.