Pentair 25 Amp, 3 HP Power Relay For LX220 And LX820 | Emergency Shut-Off Controller/Power Center — ComPool Control System | RLYSC3HP

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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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.

CALIFORNIA PROPOSITION 65 WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.
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Pentair Pool Products and Parts

About Pentair Pool Products and Parts

Pentair is often considered the "gold standard" for pool professionals, and for good reason. Founded in 1966 (originally by five inventors making high-altitude balloons!), the company has evolved into the global leader in smart, sustainable water solutions. For the DIY homeowner, Pentair represents the intersection of rugged durability and silicon valley-tier technology. They pioneered the Variable Speed Pump revolution with the IntelliFlo®, saving American pool owners millions in energy costs. Today, their ecosystem focuses heavily on automation, allowing you to control your pump, heater, lights, and chemistry from a single app. While they are a favorite among professional builders, their "EC" (E-Commerce) line of equipment allows homeowners to access pro-grade technology with valid warranties for DIY installation.

Why We Trust Pentair Pool Products and Parts
Energy Efficiency Leaders: Recipient of the ENERGY STAR® Partner of the Year award for over a decade; their pumps are designed to pay for themselves in energy savings.

Smart Automation: The Pentair Home App and IntelliCenter systems offer best-in-class control over your pool ecosystem from anywhere in the world.

Professional Pedigree: The brand most often recommended and installed by pool builders for high-end residential pools.

Eco-Conscious: Dedicated to reducing water waste and energy consumption through "Green" technology innovations.

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