Description: Rated voltage: 220/380V; Exhaust pipe: 6MM Contact method: normally closed; Bracket joint size: 20MM Outer pressure relief port: 9.5MM; Maximum current: 20A Working pressure: 5-8KG; Life: 80,000 times Switching pressure range: 0.5-0.8MPA (5-8BAR) (90-120PSI) Package Includes: 1 Piece Air Compressor Pressure Valve Switch