Rain Bird PSR110220 Dual-Voltage Pump Start Relay
Brand: Rain Bird | SKU: PSR110220
Product Overview
Use an irrigation controller’s 24 VAC pump-start command to switch a separately supplied single-phase pump with Rain Bird PSR110220. The relay supports a 110- or 220-volt line arrangement, but the allowable motor size changes with voltage: the technical sheet lists up to 2 HP at 120 V and 5 HP at 240 V. Match the motor nameplate and controller output before choosing the relay.
Key Features
- Dual-pole relay for a 110- or 220-volt pump supply arrangement.
- 24 VAC control connection from a compatible irrigation controller.
- Gray powder-coated steel NEMA 3R enclosure.
- Grounding provision and quick-connect terminals.
Common Uses
- Starting a compatible single-phase irrigation pump from a traditionally wired controller.
- Replacing a matched dual-voltage pump-start relay after checking the pump and controller ratings.
Technical Specifications
- Model: PSR110220; factory part: PS310000.
- Motor supply: 110 or 220 VAC nominal, single phase.
- Control signal: 24 VAC.
- Largest motor in the manufacturer’s electrical table: 2 HP at 120 V; 5 HP at 240 V.
- Power-relay electrical table: 24 FLA at 120 V; 28 FLA at 240 V.
- Frequency: 60 Hz.
- Power-relay coil inrush/run: 950 mA / 360 mA.
- Enclosure: NEMA 3R, gray powder-coated steel.
- Not recommended for two-wire controller/decoder systems; select the appropriate Universal PSR model instead.
- Pump, controller, branch-circuit and motor-protection equipment are separate.
Dimensions
- Width: 6 inches.
- Height: 6 inches.
- Depth: 4 inches.
Compatibility & Installation Notes
Match the motor voltage, horsepower and nameplate current to the relay ratings. The 5 HP limit applies at the higher voltage; it is not a 5 HP rating for a 120 V pump.
Check that the controller’s pump/master-valve output can supply the required 24 VAC coil load. PSR110220 is the standard dual-pole model, not an ice-cube relay model recommended for two-wire decoder installations.
Have a qualified installer make the line-voltage connections with power disconnected. Follow the motor nameplate and the relay’s supplied wiring diagram; do not alter its internal factory wiring.
Provide the required motor thermal-overload and circuit protection. The pump-start relay is not a complete pump-protection panel, and a circuit breaker alone does not establish motor thermal protection.
The manufacturer’s dual-pole installation guide is for units built from December 2014 onward. For an older replacement installation, obtain the instructions that match the unit’s date and supplied diagram.
Frequently Asked Questions
Can it run a 5 HP pump on 120 V?
No. The manufacturer’s electrical table lists a largest motor of 2 HP at 120 V and 5 HP at 240 V.
Is the controller connection 110 or 220 volts?
No. The control connection uses 24 VAC. The separate line-voltage supply feeds the pump through the relay.
Is it recommended for a two-wire decoder system?
No. Rain Bird recommends the appropriate Universal PSR model with an ice-cube relay for those systems.
Does it include motor overload protection?
Do not treat the start relay as a complete motor-protection panel. Provide the protection required for the actual pump and installation.
Why Buy from Big Frog Supply?
Choose PSR110220 for a compatible traditionally wired 24 VAC controller when the pump supply may be 110 or 220 volts. Its dual-pole switching and voltage-dependent 2 HP / 5 HP limits distinguish the selection from simply buying a relay by an amp label. Check the motor nameplate and the controller’s coil capacity together; a two-wire decoder installation calls for a different PSR arrangement.
Model: PSR110220; factory part: PS310000.
Motor supply: 110 or 220 VAC nominal, single phase.
Control signal: 24 VAC.
Largest motor in the manufacturer’s electrical table: 2 HP at 120 V; 5 HP at 240 V.
Power-relay electrical table: 24 FLA at 120 V; 28 FLA at 240 V.
Frequency: 60 Hz.
Power-relay coil inrush/run: 950 mA / 360 mA.
Enclosure: NEMA 3R, gray powder-coated steel.
Not recommended for two-wire controller/decoder systems; select the appropriate Universal PSR model instead.
Pump, controller, branch-circuit and motor-protection equipment are separate.
