The BM-PTA-40405-00N00-1S thermal actuators are designed for controlling control valves in HVAC automation systems. The thermal actuator can be controlled by 24 Vac on/off control signal or PWM signal.
BM-PTA-40405-00N00-1S is normally closed and BM-PTA-41405-10N00-1S is normally open. The following figures illustrate the function principles of the thermal actuators.


Key Features