Description Thanks to the unique expertise and feedback, this electric actuator has been developed to be a quality solution that provides the most competitive total cost of ownership. With or without fail safe capabilities, this electric actuator is On/Off or Positioning. Aluminium housing, quarter turn with visual indicator and manual override, 24 VAC power supply. Motors with thermal protection, gear case, torque switches and travel limit switches in full close and open positions, anti-condensation heater and output drive with removable socket. Your ISO TOP valve actuation solution supported with many years of experience.