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The sturdy construction of FB21 pressure switch is designed for the requirements of large pressure, heavy duty Industrial air compressors (up to 250 psi).Its steel case and cover resists the harsh conditions encountered in field applications.An unloader valve equipped to prevent the compressor from starting under load.
MODEL | Min ON (Cut-In)PSI | Max Off(Cut-Out) PSI | Differential PSI | Factory Setting PSI | Electrical Rating | Pipe Fittings | Contact Arrangement | |
120VAC | 240VAC | |||||||
FB21H | 40 | 250 | 25-60 | 145-175 | 20A | 12A | 1/4", 3/8" Male or Female NPT | NC |
FB21S | 15 | 60 | 7-15 | 30-40 | 20A | 12A | 1/4", 3/8" Male or Female NPT | NC |
Other Pressure Settings and Differential Pressure are available on request.
Conversion: 1Mpa =10bar,1bar = 14.5PSI, 1Kgf/cm2 = 14.2PSI
pressure control switch(FB21)