The General Pump YPRESSWITCH is a pressure switch that is 15 Amps, 250 Volts, 580 Switching Pressure, Brass Stem with a Stainless Steel Nipple. This model may be wired normally open or normally closed. It is not rated for inductive loads, and may not be used for starting motors; will not handle start-up current. Materials include Stainless Steel, Brass, Buna-N, and Plastic. Connection type is 1/4" NPT-M and has a maximum voltage of 250 Volts.