The COMPUTHERM DF-330 actuators have both automatic and manual modes. Switching between these operating modes by turning the transparent dial on the front panel of the actuator. In its automatic mode the actuator keeps the valve closed, while it opens the valve in response to 230V voltage in 4 minutes.( ~4 mm stroke) In manual mode, the actuator keeps the valve partially open, regardless of the power supply (~2.5 mm stroke).

• Supply voltage: 230 V AC, 50 Hz
• In non-voltage state the valve is: closed
• Modes: manual and automatic
• Power consumption: 2 W
• Max. current: ~50 mA
• Protection against environmental impacts: IP54
• Maximum stroke: ~4 mm
• Length of connecting cable: 0.8 m
• Dimensions of the flare nut: M30x1.5 mm
• Opening/closing period: approx. 4 minutes (25 °C)
• Opening force: 100 N