General description This high-quality single hole vertical air compressor pressure control switch is designed to effectively manage air pressure, making it an ideal accessory for air compressors. Technical specifications Rated voltage: 380V Maximum voltage: 500V Rated current: 20A Size: G1/4" Working pressure: 75 to 175 psi Mechanical life: 50,000 cycles Function Helps reduce pressure Energy-saving feature for air compressors ON/OFF Equipped with a red on/off switch for easy operation Used to set the start/stop state of the air compressor by adjusting the pressure