Belimo Damper Actuator, Non-Spring Return, 3 Position, 24V

Belimo Damper Actuator Non Spring Return 3 Position 24v Damp.Rotary, 45in-lb, On/Off/Float, 24V

Application
For On/Off and floating point control of dampers in HVAC systems. Actuator sizing
should be done in accordance with the damper manufacturer’s specifications.
The actuator is mounted directly to a damper shaft from 1/4” up to 5/8” in diameter
by means of its standard universal clamp. Shafts up to 3/4” diameter can be
accommodated by an accessory clamp.
Operation
The actuator is not provided with and does not require any limit switches, but is
electronically protected against overload. The anti-rotation strap supplied with the
actuator will prevent lateral movement.
The LMB series provides 95° of rotation and a visual indicator which indicates position
of the actuator. When reaching the damper or actuator end position, the actuator
automatically stops. The gears can be disengaged with manual release on the
actuator cover.
The LMB24-3… actuators use a sensorless brushless DC motor, which is controlled
by an Application Specific Integrated Circuit (ASIC). The ASIC monitors and controls
the actuator’s rotation and provides a digital rotation sensing (DRS) function to prevent
damage to the actuator in a stall condition. Power consumption is reduced in holding
mode.
The LMB24-3-S version is provided with one built-in auxiliary switch. This SPDT
switch is provided for safety interfacing or signaling, for example, for fan start-up. The
switching function is adjustable 0 to 95°. The auxiliary switch is double insulated so
an electrical ground connection is not necessary