Pentair 25 Amp, 3 HP Power Relay For LX220 And LX820 | Emergency Shut-Off Controller/Power Center — ComPool Control System | RLYSC3HP
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- SKU:
- RLYSC3HP
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About This Item
The Pentair RLYSC3HP is the OEM replacement 25 amp, 3 HP power relay for the ComPool LX220 and LX820 Solar Control Systems — the switching component that controls load circuits within these legacy automation power centers.
⚠️ IMPORTANT: LICENSED PROFESSIONAL INSTALLATION REQUIRED
Electrical control components must be installed or replaced by a qualified electrician or certified pool technician. The LX220 and LX820 power centers operate at mains voltage. Do not attempt to service internal relay components without proper certification and with power fully disconnected at the breaker.
The power relay in the ComPool LX220 and LX820 systems switches the electrical load for connected pool and solar equipment circuits. When a relay fails, the circuit it controls will not respond to automation commands — equipment may fail to turn on, fail to turn off, or behave erratically. Replacing the relay with the correct OEM part restores proper switching function. Confirm the part number RLYSC3HP against the relay currently installed in your power center before ordering.
Specifications
| Pentair Part Number | RLYSC3HP |
| Part Name | 25 Amp, 3 HP Power Relay for LX220 and LX820 |
| Amperage Rating | 25 A |
| Horsepower Rating | 3 HP |
| Quantity Included | Each |
Fits Into
| Brand | Equipment Line | Model / Part Number | Notes |
| Pentair (formerly Compool) | Emergency Shut-Off Controller/Power Center — ComPool Control System | LX820 | 25 amp, 3 HP power relay for LX220 and LX820 systems |
Compatibility is based on Pentair parts documentation and available OEM records. This is not an exhaustive list. For certainty, verify the part number in your equipment's manual or on the original part itself before ordering.
Pro Tip
The ComPool LX220 and LX820 are legacy automation systems. Before ordering, open the power center enclosure (with power off at the breaker) and physically confirm the part number printed or stamped on the existing relay matches RLYSC3HP. Multiple relay variants were used across ComPool system generations, and installing a relay with an incorrect amperage or contact rating can damage the control board or connected equipment. If you are unsure which relay is installed, photograph the existing component and contact a certified pool automation technician before proceeding.
