MinitactorTM Differential Pressure Switches For Air and Compatible Gases. Set Points from 2" w.c. to 7 psi. For quantity OEM applications the Dwyer Minitactor differential pressure switch is ideal as a flow or pressure sensor on analyzers, testers, fluidic systems, computers and peripheral equipment. Normally open, it will switch on from positive, negative or differential presures. For OEM orders, the small (1" square), low cost units are factory calibrated with required set points ranging from 2" W.C. to 7 psig. Diaphragm is molded Buna-N; housing is minteral filled Nylon. Easily mounted in any position by 3/8" panel nut on H.P. port or screws through case eyelets. Life expectancy is a minimum of one million cycles zero to actuation pressure or 10 million cycles deactuation pressure to actuation pressure. *Patent No. 3,862,387 PHYSICAL DATA Temperature Range: 32 to 140°F (0 - 60°C) Switch: Non-snap acting. Normally open, closes on increase Current Rating: Silver contacts: 5 VAC. 0.5A resistive; gold plated contacts: 5 VAC, 50 mA resistive Pressure Connections: ¼" O.D. ports Electrical Connections: 3/16" male push-on tab terminals Accessories Included: Two 3/16" female push-on connectors, on hex mounting nut. * Specify set point when ordering. Minimum quantity 25 pieces *