Square D 9013GSG2J21 Pressure Switch 30-50 Psi Pumptrol

Product Description

The SQUARE D 9013GSG2J21 is an electromechanical pressure switch rated for 30 to 50 psi with an adjustable differential pressure range of 15 to 30 psi. It operates at up to 575 VAC and uses L1-T1 and L2-T2 terminal connections. Designed for use with Square D Pumptrol pump control systems, this switch monitors system pressure and signals the pump to start or stop based on set pressure thresholds. It carries NEMA 1, 3R, 7, and 9 enclosure ratings, making it suitable for both indoor dry locations and outdoor or wet environments. Licensed plumbers, pump installers, and mechanical contractors typically specify this switch in water supply and pressure-boosting applications.

This switch is used in residential and light commercial pump systems where reliable pressure sensing and control are required. The NEMA 7 and 9 ratings extend its suitability to hazardous or classified locations where ignition-resistant enclosures are mandated. Its adjustable differential allows technicians to fine-tune cut-in and cut-out pressure settings to match system demands without replacing the switch. Typical installations include well pump systems, pressure tanks, booster pump assemblies, and irrigation controls where consistent pressure cycling is critical to system performance.

Key Features

• Pressure range of 30 to 50 psi with adjustable differential from 15 to 30 psi
• NEMA 1, 3R, 7, and 9 ratings for versatile indoor, outdoor, and hazardous location use
• 575 VAC maximum operating voltage via L1-T1 and L2-T2 terminals
• Designed for Square D Pumptrol pump control systems
• Meets CE, CSA LR25490, NSF/ANSI 372, RoHS, UL 508, and UL Listed File E12158 standards

Compatibility

Designed for use with Square D Pumptrol pump control systems as stated by the manufacturer.

Installation Notes

Installation should be performed by a licensed plumber or qualified mechanical contractor in accordance with applicable local codes and the IPC. Shut off and relieve all system pressure before removing or installing the switch, and de-energize the circuit at the disconnect or breaker before making any wiring connections. Verify that supply voltage does not exceed 575 VAC and that terminal connections match the L1-T1 and L2-T2 wiring configuration. For hazardous location installations, confirm that the NEMA 7 or 9 rating meets the specific classification of the installation site before proceeding.