THERMIC ACTUATOR AST 40405-00N00-0

The AST 40405 and AST 41405 thermostatic actuators are designed for controlling control valves in HVAC automation systems. The thermostatic actuator can be controlled by a PWM signal or a 24 Vac/dc on/off control signal. The AST 40405 is closed when de-energized and the AST 41405 is open when de-energized. This product description is an automated translation of the original Finnish description.