Sontay Genuine Electronic Speed Controller for Industrial Fans Pumps & Motors. Sontay genuine part numbers: FC-ERV, FC-ERV1, C0308, ERV-1. The FC-ERV series of electronic speed controllers provide an economic means of regulation for voltage controllable single-phase AC motors Centrifugal fans, axial fans, propeller fans, and centrifugal pumps are prime candidates for electronic speed control. The FC-EVS can control the speed of single-phase voltage controllable electric motors, with a 0-10Vdc or 4-20mA control signal. Centrifugal fans, axial fans, propeller fans and centrifugal pumps are prime candidates for electronic speed control. Fan speed is controlled via a remote invertible 0-10Vdc / 10-0Vdc or 0-20mA/20-0mA signal, suitable for direct connection to BEMS or transmitters. It is equipped with Modbus RTU communication and provides a wide range of functionalities: remote control options, adjustable off live min, and max output voltage settings, and time-limited motor operation initiated by a logic or switch signal. Volume or velocity reduction. Suitable for supply & extract systems. Minimum and maximum speed adjustment. 2 or 3-wire fan speed connections. Flow rate reduction on centrifugal pumps. If you have any questions or queries, please feel free to get in touch and we will be happy to help. Can’t find what you’re looking for? Drop us a message and we will be happy to assist. We hold a large range of current and obsolete parts available. At Trade Heating Spares, we pride ourselves on a wide range of Boiler spares and accessories, Heating, Cooling and HVAC parts, Tools and appliances. We endeavour to despatch orders made before 2pm on the same day. Images are for reference only, actual item received may vary from image.