Suitable for use on single phase compressors. Comes complete with an unloader valve underneath with a 6mm push in connection. The function of the unloader valve is to remove pressure from the piston of the compressor so when it restarts it can move freely and prevent motor from stalling Includes differential kit at no added cost. DON'TCOMPROMISE ON CHEAP ALTERNATIVES. AUTHENTIC PRESSURE SWITCH USED BY MOST COMPRESSOR MANUFACTURERS. Condor MDR1: Voltage: 500V max Current: 20a max Frequency: 50/60Hz Pressure: 11 bar Connections: 3/8" BSP + 3 x 1/4" BSP female Manufacturers Ref: MDR1/11 The use of OEM part numbers where stated are for reference purposes only, it is notintendedto imply that PMJ International Ltd parts are supplied by the OEM nor indeed is this the case. [ ] (https://stores.ebay.co.