Belimo Damper Actuator The Belimo damper actuator has an open/close control type. This actuator has an adjustable U-clamp, which accepts round or square shafts. It is a rotary/louver actuator. It is compatible with all the leading makes of HVAC controls. The damper actuator is fitted with a universal spindle clamp for quick and easy mounting directly on the damper spindle. The actuator is supplied with an ant rotation strap for fixing it at a position. This actuator operates on stall torque technology, which does not require end switches. The damper actuator has no limit switches and is overload proof. It requires a 240VAC/VDC supply voltage.

Optional auxiliary switch (stock no. 504-1545) suitable for use with LM, NM, SM, and GM damper actuators, features 2xSPDT switches rated at 3 (0.5)A 250Vac and supplied with 1m of cable. Features and Benefits Operation life is minimum 60000
Pushbutton manual override
Direction change switch
Cable length is 1m
Ambient temperature ranges between -30°C and 50°C
Rated impulse voltage is 4kV
Maintenance free
Low power consumption up to 2.5W
Maximum damper area is 4m²
Damper spindle compatibility ranges between 10mm and 20mm
Motor torque is 20Nm
Noise level is 45dB
Damper spindle size ranges between 10mm and 20mm Certifications IP54 rated
CE according to 89/336/EEC
92/31/EEC
UL Enclosure Type 2
IEC/EN 60730-1
IEC/EN 60730-2-14