Belimo Damper Actuator, Fail-Safe Spring Return, 120V, On/Off

Belimo Damper Actuator Spring Return Fail-Safe On/Off 120v
Spring, 35in-lb, On/Off, 120V

Torque min. 35 in-lb, for control of air dampers
Application
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 actuator is mounted directly to a damper shaft from 3/8” up to 1/2” in diameter
by means of its universal clamp, 1/2” shaft centered at delivery. For shafts up to 3/4”
use K6-1 accessory. A crank arm and several mounting brackets are available for
applications where the actuator cannot be direct coupled to the damper shaft.
Operation
The LF 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 consistent torque to the damper with, and without, power applied to the
actuator.
The LF series provides 95° of rotation and is provided with a graduated position
indicator showing 0° to 95°.
The actuator may be stalled anywhere in its normal rotation without the need of
mechanical end switches. Power consumption is reduced in holding mode. The
actuator is double insulated so an electrical ground connection is not necessary.
The LF120-S US and LF230-S US versions are provided with one built-in auxiliary
switch. This SPDT switch is provided for safety interfacing or signaling, for examp