Torque min. 18 in-lb for control of damper surfaces up to 11 sq ft.

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 ¼” up to 5/8” in diameter

by means of its standard universal clamp. Shafts up to ¾” 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 TMB 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 TMB24-3... 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.

Add on auxiliary switches or feedback potentiometers are easily fastened directly

onto the actuator body for signaling and switching functions.

Technical Resources: TMB24 (35sec) Data Sheet