Siemens control motors are highly versatile modulating actuators used for the positioning of flow control valves, butterfly valves, dampers, or any application requiring rotary motion.

The SQM5 is available in a wide range of torque ratings from 90 to 400 in-lbs. and running times of 8 to 50 seconds. A selection of exchangeable circuit boards provide a variety of functions including zero and span adjustment, parallel or master/slave operation, split range control, input signal override and selectable electronic linearization.
Six easily accessible internal switches
Auto/manual switch allows easy adjustments
Externally visible shaft position indicator
Highly modulating accuracy/rotational resolution
Low hysteresis actuator with double-offset drive and potentiometer gearing

SQN7 control motors are designed to drive gas and air dampers for burners with small to medium capacities.
Line Voltage floating or proportional control
Optional feedback potentiometer
Up to 22 in-lb torque
Auxiliary switch