Schneider Electric 9013FHG2J27 Pumptrol Pressure Switch

The Schneider Electric Square D 9013FHG2J27 Pumptrol pressure switch is an industrial-grade electromechanical device that automatically starts and stops a pump or air compressor based on a pre-set pressure threshold, helping protect equipment and regulate air delivery in workshops, garages, and light industrial settings. It maintains a fixed 20 psi differential with an 80 psi on-pressure (turns the pump on) and 100 psi off-pressure (shuts it off), and is configured as DPST with two normally closed contacts (2NC) to switch two circuits in the motor control reliably. The unit uses a nitrile diaphragm and a thermoplastic housing, with screw-clamp terminals for secure wiring, and is designed for rugged service in typical compressor environments. Electrical ratings include up to 1 hp at 575 VAC, and a low-maintenance operating rate of about 10 cycles per minute, making it suitable for intermittent duty compressors. Its enclosure is rated NEMA 1/IP20, and its physical footprint measures roughly 2.78 in wide, 3.76 in deep, and 2.8 in high, with a service temperature range from -33 to 257 °F.