providing the reliable timing logic necessary for industrial and residential climate control applications

verify the temperature differential across the suction and discharge lines

and flame supervision to ensure peak thermal efficiency and operational safety

Simplified Installation: Standard 1/4" spade terminals allow for fast

Common Questions How do I configure the output range on the Belimo 22DC-51

Siemens Combustion SQM40.255R11 Actuator 324846-701 providing the reliable timing logicThe Siemens SQM40. 255R11 is a high torque combustion actuator engineered for precise modulation of fuel and air flow in industrial burner systems. Operating on 110V AC, this modulating motor utilizes a 4 20 mA control signal with a 135 Ohm impedance to drive butterfly valves, dampers, and oil pressure controllers. Designed specifically for counter clockwise (CCW) operation, the unit delivers 90 in lb of torque with a 90 degree stroke time of 25