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As a heavy-duty HVAC sequencer relay
What is the difference between direct-acting and reverse-acting models
allowing for motor control module replacement without removing the entire blower wheel
pre-stripped leads for the primary side and an accessible 5-screw terminal board for secondary connections
Siemens Combustion SQM50.464R1G3R Actuator 30067439-890 As a heavy-duty HVAC sequencerThe Siemens SQM50. 464R1G3R Actuator is a high precision reversible motor designed for the positioning of flow control valves, butterfly valves, and dampers in large scale commercial and industrial combustion systems. Engineered for high torque burner control, this unit delivers 140 in lb of torque with a 25 second run time for a 90 degree stroke. It operates on a 4 20mA control signal, allowing for seamless integration into modulating burner control
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