Hunter PSR22 Pump Start Relay — Double-Pole Single-Throw for 230V/120V Pumps, Flying Leads

When irrigation draws from a pond, creek, or uses a booster pump, the electrical relay is the component that tells the pump when to run. The Hunter PSR22 is built to work with standard irrigation controllers, providing a rugged, easy-to-wire interface between 24V control signals and 120/230 VAC pumps. Its compact footprint and flying wire leads make installation straightforward whether you are retrofitting an existing system or adding a new pump start capability.

How does the PSR22 integrate with my irrigation controller?

The PSR22 accepts the 24VAC control signal commonly used by irrigation controllers and switches the higher-voltage pump circuit. It mounts near the pump or inside a controller enclosure and uses flying leads for fast connections. Designed as a double-pole, single-throw device, it isolates both hot conductors of the pump circuit for safe operation.

• Connects to standard 24VAC valve output from most irrigation controllers
• Flying wire leads simplify hook-up without extra terminal blocks
• Double-pole switching isolates both live conductors for safety
• Compatible with typical controller programming and run schedules

What pump sizes and voltages can PSR22 handle?

The PSR22 is rated to control 120 VAC pumps up to 2 HP and 230 VAC pumps up to 5 HP, covering the most common residential and light-commercial booster pumps. Choose the correct model based on your pump voltage and motor size to ensure reliable starting. Always verify motor and circuit breaker ratings before installation.

• 120 VAC model supports pumps up to 2 HP
• 230 VAC model supports pumps up to 5 HP
• Select model variant to match local supply and pump specifications
• Designed to work with common motor starter and wiring practices

How easy is installation and what wiring features does it offer?

Installation is straightforward thanks to the flying wire leads that remove the need for custom terminal work; simply match the relay leads to the pump and controller wiring. The PSR22’s compact package fits into standard enclosures or mounts near the pump, and its rugged internal contacts are sized for frequent on-off cycles typical in irrigation. No complex programming is required—just wire and test with the controller.

• Pre-installed flying leads for quick 24V and pump connections
• Compact dimensions fit common enclosures and pump boxes (22.606 x 11.684 x 17.526 cm)
• Durable contacts built for repeated cycling in irrigation systems
• Minimal tools needed: basic hand tools and standard wire connectors

Which PSR22 model should I pick and what installation tips matter?

Hunter offers three PSR22 variants to match different power sources and landscape setups — select the one whose voltage and horsepower ratings match your pump. Mount the relay away from direct water exposure, secure wiring to avoid strain, and use appropriately sized breakers and conduit for code-compliant installations. If in doubt, consult a licensed electrician or irrigation professional to confirm compatibility.

• Pick model variant based on pump voltage and horsepower needs
• Protect relay from moisture and excessive heat for long life
• Use correct breaker and conductor sizes per local electrical code
• Have a professional verify connections when dealing with mains power

Who is this for: The Hunter PSR22 is aimed at irrigation contractors, landscape professionals, and informed homeowners who need a dependable relay to activate booster pumps or manage water drawn from non-pressurized sources. It’s ideal when you require a simple 24V-to-AC switching solution rated for standard residential and light commercial pumps, and prefer the convenience of flying leads for faster installation.