Differential Pressure Switch, Application Refrigeration, Air Compressor Control, Air Flow Control, Contact Form SPDT, Electrical Rating 15 A @ 125/250/480V AC Resistive, Housing Material Stainless Steel, Input Voltage 125V AC, 250V AC, 480V AC, Maximum Differential Pressure Setting 6 psi, Maximum Operating Temperature 160 Degrees F, Maximum Pressure Rating 30 psi, Maximum Pressure Setting 6 psi, Minimum Operating Temperature -40 Degrees F, Minimum Pressure Setting 0 psi