General description The automatic air compressor switch is designed for efficient control of air pressure in various applications, including water pumps. It features a robust construction and is equipped with multiple connection options for versatility. Technical specifications Overall dimension: 82*52*127MM (L*W*H) Rated voltage: 220/380V Exhaust pipe: 6MM Contact mode: normally closed Connector size: British internal thread 1/4 Outer diameter of pressure relief port: 9.5 mm Maximum current: 20A Working pressure: 5-8KG (90-125PSI) Service life: 80,000 times