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Hunter PSR-52 pump start relay in lockable NEMA-rated outdoor enclosure, 24VAC flying leads and multiple wiring knockouts.

Hunter PSR-52 Pump Relay - Double-Pole, 3HP/7.5HP

Brand: Hunter
Save 28%
$253.84
$184.03
SKU PSR52
In Stock (13)

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The Hunter PSR-52 Pump Relay delivers dependable pump activation for irrigation systems that require booster pumps or direct water sourcing. Engineered for reliable performance and straightforward installation, the PSR-52 works with standard 24VAC controllers and provides a secure, lockable enclosure for outdoor use.

  • Compatibility: Activates 120V single-phase pumps up to 3 HP and 230V pumps up to 7.5 HP.
  • Enclosure: Lockable NEMA-rated cabinet designed for outdoor installations with multiple wiring knockouts for flexible mounting.
  • Easy wiring: 24VAC flying leads make connection to controllers quick; supports conventional or two-wire decoder activation.
  • Approvals: UL/cUL-approved relay components with industry protection ratings (IP54) and other certifications for safe operation.
  • Electrical specs: Max full-load amps 40 A and max resistive amps 50 A; includes internal transformer and solid-state relay for dependable switching.
  • Compact footprint: Approximately 7.5" H × 6.5" W × 4.5" D for convenient installation near pump or controller.

Ideal for residential and commercial irrigation setups, the PSR-52 simplifies pump control without complex wiring. Follow Hunter's installation guidelines — including the recommended minimum separation from the controller — and consult the included installation card and cutsheet for wiring diagrams and model selection. The PSR family is backed by a two-year limited warranty.

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Frequently Asked Questions

What pump horsepower does the PSR-52 support?
It activates 120V single-phase pumps up to 3 HP and 230V pumps up to 7.5 HP.
How do I connect the relay to my controller?
Use the 24VAC flying leads to connect directly to any standard 24VAC irrigation controller; follow the wiring diagram in the installation card.
Is the PSR-52 suitable for outdoor installation?
Yes. It comes in a lockable NEMA-rated enclosure with knockouts for external wiring; components have UL and IP54 approvals.