When searching for the best pool automation relay expansion module, you’re looking for a reliable component that seamlessly integrates with your existing pool control system. The OONO Forward and Reverse Relay Module stands out for its versatility in controlling motors and actuators, making it perfect for complex setups. For those prioritizing compatibility, the Zodiac R0658100 3-HP Relay offers a straightforward replacement option for Zodiac/Jandy systems. Meanwhile, the Hayward HLRELAY OmniLogic provides a user-friendly interface with solid performance, ideal for mid-range systems. Buyers face tradeoffs between compatibility, ease of installation, and price, making it essential to understand your specific system needs. Continue reading for a detailed breakdown of these options to help you make an informed choice.
Key Takeaways
- Compatibility with existing pool automation systems is the most critical factor in selecting a relay expansion module.
- Top picks balance ease of installation with reliable performance, often sacrificing some advanced features for straightforward use.
- Price varies significantly; premium modules typically offer more durability and integrations, but costlier options aren’t always necessary for basic setups.
- Modules with clear wiring and robust build quality tend to last longer and reduce maintenance headaches.
- Smart relay modules like Shelly Wave expand control options but may require additional setup and network integration knowledge.
| OONO Forward and Reverse Relay Module for Motor/Linear Actuator, Reversing Relay Module (DC 12V) |  | Best for DIY Pool Automation Enthusiasts | Operating Voltage: 10-15V DC | Current Rating: 10 Amps | Maximum Switching Voltage: 15V | VIEW LATEST PRICE | See Our Full Breakdown |
| Zodiac R0658100 3-HP Relay with Harness Replacement Kit for Select Zodiac Jandy Pool and Spa Power Control System |  | Best for Existing Zodiac Jandy System Users | Horsepower Capacity: 3 HP | Mounting Type: Plug-in harness | Compatibility: Specific Zodiac/Jandy models | VIEW LATEST PRICE | See Our Full Breakdown |
| Hayward HLRELAY OmniLogic, 1 Relay Module |  | Best for Integrators and High-End Automation Setups | Operation Voltage: 240Vac | Coil Voltage: 24V DC | Contact Rating: 3 HP | VIEW LATEST PRICE | See Our Full Breakdown |
| Intermatic 143T145A Timer Replacement Relay Assembly 24V Dc Coil for P4243Me Valve/Pump Switch |  | Best for Timer-Based Control Systems | Current Rating: 20 Amps | Operation Mode: Automatic | Coil Voltage: 24V DC | VIEW LATEST PRICE | See Our Full Breakdown |
| Pentair RLYLX 20-Ampere Additional Power Relay Replacement Kit Pool and Spa Automation Control Systems |  | Best for Pentair Automation Expansion | Current Rating: 20 Amps | Operation Mode: Automatic | Material: Silver contact | VIEW LATEST PRICE | See Our Full Breakdown |
| GLX-PL-LOC-P-4 Local Display Controller for Hayward PL-P-4 Goldline ProLogic Systems |  | Best for Compatibility with Hayward Systems | Control Device Capacity: up to 16 devices | Compatibility: Hayward Goldline ProLogic & AquaPlus | Material: Corrosion-resistant housing | VIEW LATEST PRICE | See Our Full Breakdown |
| Pentair 520106 Relay Assembly Replacement for Pool and Spa Control Systems |  | Best for Heavy-Duty Load Handling | Load Capacity: up to 3 HP / 25A | Voltage: 277 VAC | Coil Voltage: 24V DC | VIEW LATEST PRICE | See Our Full Breakdown |
| Shelly Wave 1PM Mini US LR Z-Wave Long Range Smart Switch with Power Metering |  | Best for Smart, Remote Pool Lighting Control | Range: up to 1.5 miles | Channels: 1 | Max Current: 8A | VIEW LATEST PRICE | See Our Full Breakdown |
| Swimables 143T145A Intermatics 24V DC DPST Pool Equipment Relay |  | Best for Heavy-Duty, High-Load Equipment | Load Capacity: 25A / 3 HP | Voltage: 277 VAC | Coil Voltage: 24V DC | VIEW LATEST PRICE | See Our Full Breakdown |
More Details on Our Top Picks
OONO Forward and Reverse Relay Module for Motor/Linear Actuator, Reversing Relay Module (DC 12V)
This reversing relay module stands out for its simplicity and versatility, making it ideal for those looking to automate pool features or other motorized equipment. Compared with the Zodiac R0658100, it offers support for reversing motors, which is a key feature for complex pool setups, but it doesn’t include integrated control systems. Its rated current of 10 Amps and operating voltage of 10-15V DC make it suitable for small to medium motors, though it requires some wiring expertise. The LED indicators provide clear status feedback, and its compact plastic case allows for easy mounting in tight spaces. However, it lacks built-in automation logic or remote control capability, which might be a drawback for users seeking fully integrated systems. This pick makes the most sense for hands-on users customizing their pool automation with external controllers but isn’t ideal for those wanting plug-and-play solutions.
Pros:- Supports reversing motor control with forward and reverse indicators
- Compact design for easy installation
- Supports up to 10A current with a wide operating voltage range
Cons:- Requires external control system for full automation
- No wireless or remote control capabilities
- Limited to basic motor switching without advanced features
Best for: DIY pool owners or technicians seeking a flexible, reversible relay for motor control
Not ideal for: Homeowners looking for a fully integrated, ready-to-go pool automation system
- Operating Voltage:10-15V DC
- Current Rating:10 Amps
- Maximum Switching Voltage:15V
- Maximum Switching Current:10 Amps
- Rated Power:125 watts
- Coil Resistance:10 Ohms
Bottom line: This relay is best suited for users comfortable with wiring and integration, providing reliable motor control but lacking automation features.
Zodiac R0658100 3-HP Relay with Harness Replacement Kit for Select Zodiac Jandy Pool and Spa Power Control System
This relay kit excels for owners with compatible Zodiac or Jandy systems, providing a straightforward replacement that restores pump control up to 3 horsepower. Unlike the Hayward HLRELAY OmniLogic, which offers a more integrated control experience, the Zodiac relay is a dedicated replacement part designed specifically for certain Zodiac control centers. Its 3 HP capacity and plug-and-play harness make installation quick, especially for those familiar with Zodiac systems. However, it doesn’t include any automation or remote features on its own, so it’s less flexible for custom setups. This product makes the most sense for users needing a reliable, straightforward replacement within their existing Zodiac infrastructure, but it isn’t suitable for those seeking standalone or advanced automation features.
Pros:- Designed specifically for Zodiac Jandy control systems
- Plug-and-play harness simplifies installation
- Supports up to 3 HP pump operation
Cons:- Limited to compatible Zodiac/Jandy models
- No built-in Wi-Fi or remote control
- Functionality restricted to pump switching only
Best for: Pool owners with Zodiac or Jandy control systems needing a reliable relay replacement
Not ideal for: Users without Zodiac control systems or those looking for wireless or smart control features
- Horsepower Capacity:3 HP
- Mounting Type:Plug-in harness
- Compatibility:Specific Zodiac/Jandy models
- Operation Mode:Automatic
- Material:Silver contact
- Country of Origin:United States
Bottom line: Ideal for replacing failed relays in Zodiac systems, offering dependable performance but lacking smart automation capabilities.
Hayward HLRELAY OmniLogic, 1 Relay Module
The Hayward HLRELAY OmniLogic module is a robust choice for integrating with Hayward’s high-end OmniLogic automation systems, supporting easy expansion with its plug-in design. Compared with the Intermatic 143T145A, it offers higher capacity and seamless compatibility with Hayward’s ecosystem, making it ideal for sophisticated pool setups. Its durable build and direct connection to the OmniLogic panel provide reliable operation and simplified wiring. However, its cost and limited compatibility outside Hayward systems make it less suitable for DIYers or those with other control brands. This module is best for professional installers or owners already committed to the Hayward OmniLogic platform, but it’s not an option for multi-brand or budget-conscious users.
Pros:- Seamless integration with Hayward OmniLogic systems
- Supports high current loads for large pumps or equipment
- Durable construction for long-term reliability
Cons:- Limited to Hayward ecosystem
- Higher price point compared to generic relays
- Installation requires professional knowledge
Best for: Pool professionals and advanced homeowners with Hayward OmniLogic systems
Not ideal for: Homeowners seeking budget-friendly or multi-brand automation expansion modules
- Operation Voltage:240Vac
- Coil Voltage:24V DC
- Contact Rating:3 HP
- Assembly Required:False
- Country of Manufacture:USA
- Mounting Type:Plug-in
Bottom line: This relay is perfect for expanding Hayward OmniLogic automation with reliable, high-capacity modules, but not suitable for multi-brand systems.
Intermatic 143T145A Timer Replacement Relay Assembly 24V Dc Coil for P4243Me Valve/Pump Switch
The Intermatic 143T145A relay offers a straightforward, reliable solution for replacing timer-based control relays in pool pump and valve systems. It is designed specifically for the P4243Me model, ensuring compatibility, but it won’t work with standard mechanical freeze guards or other control types. Its 20 Amp current rating makes it suitable for most residential pumps and valves, and its plug-in design simplifies installation. Compared to the Pentair RLYLX, it’s more suited to timer control rather than full automation. Its primary limitation is its focus on timer systems, so it lacks wireless or smart features. This makes it an excellent choice for basic, timer-based pool control setups but less so for integrated automation systems.
Pros:- Easy to install with plug-in design
- Supports up to 20 Amps current
- Specifically designed for Intermatic timer systems
Cons:- Limited to timer-based applications
- No wireless or remote control features
- Not compatible with mechanical freeze guards
Best for: Homeowners with timer-based pool control needing a reliable relay replacement
Not ideal for: Users seeking fully automated or smart pool control solutions
- Current Rating:20 Amps
- Operation Mode:Automatic
- Coil Voltage:24V DC
- Mounting Type:Wall mount
- Material:Silver contact
- Dimensions:4.6 x 7.9 x 14 cm
Bottom line: Best suited for replacing timers in pool systems, offering dependable operation but lacking automation capabilities.
Pentair RLYLX 20-Ampere Additional Power Relay Replacement Kit Pool and Spa Automation Control Systems
The Pentair RLYLX 20-Ampere Relay Kit is a solid choice for expanding Pentair’s control systems, supporting additional high-current loads for pools and spas. It is compatible with the Pentair LX80 and other Pentair systems, providing a straightforward replacement to maintain system reliability. Its 20 Amp capacity allows for larger pumps and water features, making it suitable for more demanding setups. While it integrates seamlessly with Pentair automation, it doesn’t include advanced features like wireless connectivity or smart control, limiting its use to wired automation expansion. Compared to the Hayward OmniLogic relay, it offers better compatibility within Pentair systems but is less flexible for multi-brand or smart home integration. This product is best for Pentair system owners needing a dependable, high-current relay upgrade, but not for those seeking smart automation features.
Pros:- Supports 20 Amps current for high-power loads
- Compatible with Pentair LX80 and other systems
- Reliable, well-built replacement kit
Cons:- Limited to Pentair ecosystem
- No wireless or smart features
- Designed primarily for expansion, not automation
Best for: Pentair system users looking for high-current relay expansion
Not ideal for: Users with non-Pentair systems or seeking smart remote control
- Current Rating:20 Amps
- Operation Mode:Automatic
- Material:Silver contact
- Compatibility:Pentair LX80 and systems
- Country of Origin:USA
- Dimensions:Standard relay size
Bottom line: This relay kit is ideal for Pentair system expansion, offering dependable high-current performance but lacking smart control options.
GLX-PL-LOC-P-4 Local Display Controller for Hayward PL-P-4 Goldline ProLogic Systems
This local display controller stands out for its OEM-standard build and plug-and-play design, making it a reliable upgrade for Hayward Goldline ProLogic and AquaPlus systems. Unlike generic relays, this unit offers a user-friendly interface for monitoring and controlling up to 16 devices, including heaters and solar systems. Its high-quality, corrosion-resistant housing extends the lifespan even in harsh environments. The primary tradeoff is its limited compatibility—it’s not suitable for OmniLogic or H-Series systems, unlike more versatile options like the Shelly Wave 1PM. This pick makes the most sense for owners of Hayward systems seeking a straightforward, durable replacement that integrates seamlessly into existing setups.
Pros:- OEM-standard quality ensures reliability and durability.
- Plug-and-play design simplifies installation and setup.
- Controls up to 16 devices, including heaters and solar systems.
Cons:- Limited compatibility excludes OmniLogic and H-Series systems.
- No smart home integration or advanced automation features.
Best for: Pool owners with Hayward Goldline or AquaPlus automation systems who need a compatible, easy-to-install display controller.
Not ideal for: Buyers with OmniLogic or H-Series systems, as this controller isn’t compatible and would require a different solution.
- Control Device Capacity:up to 16 devices
- Compatibility:Hayward Goldline ProLogic & AquaPlus
- Material:Corrosion-resistant housing
- Installation:Plug-and-play
- Warranty:36 months
- Color:Black
Bottom line: This controller is ideal for Hayward system owners seeking a straightforward, high-quality local display upgrade.
Pentair 520106 Relay Assembly Replacement for Pool and Spa Control Systems
Compared to more basic relays like the Swimables 143T145A, this Pentair relay excels in handling high electrical loads with a 3 HP capacity, making it suitable for demanding pumps and heaters. Its robust construction ensures reliable switching at resistive loads up to 25 amps at 277 VAC, outperforming standard relays that may struggle under high current demands. However, its installation is less straightforward than plug-and-play options, requiring some wiring knowledge. This relay is better suited for those who prioritize performance under heavy loads and are comfortable with more technical setup, especially if using Pentair or similar high-power control systems.
Pros:- Handles high loads up to 3 HP and 25A at 277 VAC.
- Robust construction for durability in outdoor conditions.
- Compatible with various control systems including Pentair, Hayward, and Jandy.
Cons:- Requires wiring knowledge for installation, not a plug-and-play solution.
- Lacks smart features or remote control capabilities.
Best for: Professional installers or experienced pool owners needing a high-capacity relay for demanding equipment.
Not ideal for: Beginners or those seeking a simple, plug-and-play replacement, as this requires wiring expertise.
- Load Capacity:up to 3 HP / 25A
- Voltage:277 VAC
- Coil Voltage:24V DC
- Mounting:DIN Rail
- Material:Tungsten contact
- Durability:Weather-resistant
Bottom line: This relay is perfect for users needing heavy-duty performance in a reliable, high-capacity package, willing to handle installation complexity.
Shelly Wave 1PM Mini US LR Z-Wave Long Range Smart Switch with Power Metering
This compact Z-Wave relay stands out for its extendable long-range communication of up to 1.5 miles, making it ideal for smart pool lighting and small appliances. Unlike traditional relays, it offers real-time power metering, helping users monitor energy use and reduce costs. Its small size allows for retrofitting in tight spaces, and it integrates seamlessly with popular smart home platforms like Alexa, Google Home, and SmartThings. The main tradeoff is that it requires a Z-Wave hub for operation, which adds an extra component and potential complexity for setup. This makes it perfect for tech-savvy pool owners looking to automate and monitor their lighting and small electronics remotely from anywhere.
Pros:- Long-range communication up to 1.5 miles.
- Real-time power metering for energy savings.
- Compact size fits in small switch boxes.
Cons:- Requires a Z-Wave hub for operation, adding setup steps.
- Limited to controlling small appliances and lights, not large equipment.
Best for: Smart homeowners wanting reliable, long-range control and energy monitoring for pool lighting and small devices.
Not ideal for: Users without a Z-Wave hub or those who prefer standalone solutions with no additional hub needed.
- Range:up to 1.5 miles
- Channels:1
- Max Current:8A
- Compatibility:Alexa, Google, SmartThings
- Power Metering:Yes
- Size:Very compact
Bottom line: This relay is best for smart users seeking extended-range control and energy insights for pool lighting and small electronics.
Swimables 143T145A Intermatics 24V DC DPST Pool Equipment Relay
Compared to the Shelly Wave 1PM, this Swimables relay is designed for high-load applications, supporting up to 25A resistive loads at 277 VAC, making it suitable for pumps, heaters, and water features. Its heavy-duty construction ensures long-term reliability in outdoor environments, outperforming lighter relays that might fail under continuous high-current operation. However, it lacks smart features or remote control, limiting its use to direct manual or timer-based control systems. This relay makes the most sense for experienced technicians or professionals who need a dependable, high-capacity switch for demanding pool equipment, especially where smart home integration isn’t a priority.
Pros:- Handles high currents up to 25A at 277 VAC.
- Robust and weatherproof for outdoor use.
- Easy drop-in replacement for existing relays.
Cons:- No smart connectivity or remote control capabilities.
- Requires manual wiring and setup.
Best for: Pool technicians or experienced DIYers needing a rugged, high-capacity relay for demanding equipment without automation features.
Not ideal for: Homeowners seeking wireless control or energy monitoring, as this is a basic high-load relay.
- Load Capacity:25A / 3 HP
- Voltage:277 VAC
- Coil Voltage:24V DC
- Type:DPST
- Material:Steel contacts
- Application:Pumps, heaters, water features
Bottom line: This relay is ideal for heavy-duty applications where durability and load capacity are critical, and automation isn’t needed.
How We Picked
These products were evaluated based on performance, compatibility with popular pool automation systems, build quality, ease of installation, and overall value. We prioritized modules that are widely used and tested, ensuring they meet the demands of different pool setups—from simple pumps to complex multi-feature systems. The ranking reflects a balance between affordability and advanced features, helping both casual users and more dedicated pool owners find suitable options. Reliability and user feedback also played important roles in determining the top picks, ensuring that each product offers consistent performance in real-world conditions.Factors to Consider When Choosing Best Pool Automation Relay Expansion Module
Choosing the best pool automation relay expansion module requires considering several factors beyond just brand or price. Understanding your existing system’s compatibility, the load capacity you need, and ease of installation can save you time and money. It’s also worth evaluating the module’s build quality and future-proofing features. By paying attention to these considerations, you can prevent common mismatches and ensure your pool automation system runs smoothly for years to come.Compatibility With Your Pool System
Ensuring the relay module integrates seamlessly with your current automation system is vital. Check whether the module supports your brand and model—such as Zodiac, Hayward, or Pentair. Mismatched components can lead to setup complexities or unreliable operation, so verifying compatibility before purchase is a wise step. Some modules also need specific communication protocols or wiring configurations, so review your system’s requirements closely.
Load Capacity and Electrical Ratings
Understanding the load your relay needs to handle is crucial. Consider the horsepower or current ratings of your pool equipment—pumps, heaters, and lights—and select a relay that can comfortably support these loads. Overloading a relay can cause failures or safety hazards, so choosing a module with a higher capacity than your equipment requires provides extra safety margin and longevity.
Ease of Installation and Maintenance
Opt for modules with straightforward wiring and clear instructions to reduce installation time. Some relays come with wiring harnesses or plug-in connectors, which simplify setup. Maintenance considerations include build quality and modular design—well-made relays with accessible components tend to last longer and are easier to troubleshoot if issues arise.
Build Quality and Durability
Durability often correlates with material quality and design. Metal enclosures or high-grade plastics can withstand environmental factors like humidity or corrosion. Investing in a robust module may cost more upfront but can prevent frequent replacements, especially in outdoor or harsh environments.
Future-Proofing and Additional Features
Some relay modules offer smart integrations, remote control capabilities, or expandability options, which might be worth considering for future upgrades. Modules compatible with Z-Wave, Wi-Fi, or other smart home protocols can provide more control and convenience down the line. However, these features often come at a higher price and may require additional setup effort.
Frequently Asked Questions
Will this relay module work with my existing pool automation system?
To determine compatibility, check your system’s brand and model specifications against the relay module’s supported protocols and connections. Many modules are designed for specific brands like Zodiac, Hayward, or Pentair, so matching these is essential. If you’re unsure, consult the product documentation or contact the manufacturer for confirmation. Using compatible modules ensures reliable operation and prevents potential damage to your system.
How difficult is it to install a relay expansion module myself?
Installation complexity varies depending on your system and the relay module’s wiring requirements. Many modules are designed for straightforward hookup with clear instructions, making them accessible for DIY enthusiasts with basic electrical knowledge. However, some setups may require additional tools or safety precautions, especially when working with high voltages. If you’re uncomfortable with electrical work, hiring a professional can save time and ensure safety.
Can a relay module handle multiple pieces of equipment at once?
Yes, many relay modules are designed to control multiple circuits either through multiple channels or high-current ratings. Always verify the load ratings and channel count to match your setup. Overloading a relay can lead to failures or safety hazards, so choosing a module with sufficient capacity and proper wiring is essential for managing multiple devices reliably.
Are smart relay modules worth the extra cost?
Smart relay modules like Shelly Wave offer remote control, integration with smart home systems, and real-time monitoring, which can add convenience and flexibility. For users who want to manage their pool equipment from anywhere or integrate with home automation setups, these features justify the higher price. However, they may require more setup and troubleshooting, so consider your comfort with technology before opting for smart modules.
What should I do if my relay module stops working?
If a relay module malfunctions, first check all wiring connections and fuse or circuit breaker status. Inspect the relay for signs of physical damage or corrosion. Replacing a faulty relay is usually straightforward if you have basic electrical skills, but if issues persist, consulting a professional ensures safety and proper operation. Regular maintenance and choosing high-quality modules can help prevent these problems in the future.
Conclusion
For most users, the OONO Forward and Reverse Relay Module offers the best balance of versatility and performance, making it the top overall choice. Those seeking value without sacrificing reliability should consider the Zodiac R0658100 3-HP Relay, especially if compatible with their existing Zodiac or Jandy systems. For owners wanting advanced features and smart integration, a premium option like the Shelly Wave provides excellent control options. Beginners or DIYers will appreciate modules with simple wiring and clear instructions, while experienced users looking for durability might prioritize heavy-duty, high-capacity relays. Assess your system’s needs carefully, and you’ll find the perfect fit for your pool automation setup.
