M400 is an electro-mechanical actuator for the control of two-way and three-way plug valves in: • heating systems • air handling systems. The M400 is either controlled by an increase/decrease signal or by a modulating 0–10 V control signal.
The working range of the actuator is adjusted automatically depending on the stroke of the valve. The electronic circuitry of the actuator then takes care of the adjustment of the valve end positions. The actuator is supplied by 24 V AC. It can provide a position indicator signal 2-10 V and a 16 V DC voltage supply for older TAC controllers.