Boost Controller Output for Reliable Pump Activation: Hunter PSR-B
The Hunter PSR-B Pump Start Relay Booster is the solution for irrigation systems where the controller alone cannot reliably activate a pump start relay due to long wire runs, low output power, or two-wire decoder installations. The PSR-B includes a built-in local 24V transformer with a solid-state double-pole relay, delivering reliable pump activation regardless of controller output limitations.
Key Specifications & Features
- SKU / UPC: PSR-B (also: PSRB) / 611698146078
- Relay Type: Solid-state double-pole relay
- Relay Rating: 10A double-pole
- Primary Input: 120/230 VAC
- Secondary Output: 24 VAC, 1.6 A (includes built-in transformer)
- Control Input: 24 VAC flying leads from irrigation controller or decoder
- Enclosure: NEMA-rated, IP54 lockable outdoor housing
- Conduit Knockouts: Multiple for flexible wiring
- Lead Wires: Flying 24V leads for quick controller connections
- Weight: 3.96 lbs
- Min Distance from Controller: 15 ft / 4.5 m (recommended)
- Certifications: UL, cUL, FCC, CE, RCM
- Warranty: 2 years
- Installation: Must be installed by a licensed electrician
Frequently Asked Questions
When do I need the PSR-B instead of the PSR-22 or PSR-53?
Use the PSR-B when your irrigation controller cannot deliver enough 24 VAC current to reliably trigger a standard pump start relay — typically in long wire-run installations (over 500 ft), two-wire decoder systems, or when drawing water from creeks or ponds with a booster pump.
Does the PSR-B replace the pump start relay entirely?
Yes. The PSR-B is a complete self-contained pump start solution with its own built-in transformer and solid-state relay. It does not require a separate PSR-22 or PSR-53 in addition to itself.
Can the PSR-B be used with two-wire decoder irrigation systems?
Yes. The PSR-B is specifically designed for compatibility with Hunter’s two-wire decoder controllers (ICD, LNKWIFI, and others) in addition to standard 24 VAC controllers.
