Star Control Box for 1/2 HP Submersible Well Pumps
4.4Editor score
Universal voltage relay included
Heavy duty terminal block
Indoor or outdoor use
In this guide
Choosing the right Control Box for Well Pump is essential for maintaining reliable water pressure and protecting your submersible motor. A well designed box ensures proper voltage management and thermal protection for long term performance.
We compared ten leading models based on compatibility voltage ratings and build quality. Our analysis covers top brands like Franklin Electric Red Lion and Goulds to help you find the perfect match for your system.
Each pick highlights key specs pros and cons to simplify your decision. Prices and availability change frequently so please verify current details on the product page before making your final purchase selection today.
Top 3 Picks for Best Control Box for Well Pump
Red Lion RLCB10-230 1-HP 230-Volt VMC Control Box
4.6Editor score
NEMA Encl 3 rating
UL listed in USA
Thermal protection included
Franklin Electric Control Box 2 Hp 230V Submersible Water Pump
4.4Editor score
1.5kw power output
Start and work capacitors
Thermal protector included
Top 10 Best Control Box for Well Pump in 2026 Compared
This side by side comparison highlights the key specifications and features of the top ten Control Box for Well Pump models available today for informed purchasing.
ProductsSpecificationsEditor scorePrice
Editor's Choice
Red Lion RLCB10-230
1 HP 230 Volt
NEMA Encl. 3
UL Listed USA Canada
Three wire single phase
4.6Editor score
Editor's Choice
Control Box 1 1/2HP
1 1/2 HP 230V
CSCR Control Box Type
Accepts up to #2 AWG
Pole or Wall Mounting
4.7Editor score
Best Premium
FRANKLIN ELECTRIC 1 HP
1 HP Franklin Electric
For 3 wire motors
230 V Single Phase
Made In USA
4.6Editor score
Franklin Electric Control Box 2 Hp
Rated HP 2
1.5kw Power
Start capacitor 105-126 uf
Working capacitor 20 uf
4.4Editor score
FRANKLIN ELECTRIC 1/2 HP
1/2HP Franklin Electric
For 3 wire motors
230 V Single Phase
Made In USA
4.6Editor score
Star Control Box for 1/2 HP
1/2 HP submersible
Heavy duty terminal block
Interchangeable industry control
Universal voltage relay
4.4Editor score
Franklin Electric 1 1/2 1.5 Hp
1.5 HP Franklin Electric
230 V Single Phase
For 3 wire plus Ground
Made In USA
4.7Editor score
GOULDS CentriPro 1 HP
Goulds 1 HP
Model CB10412
Max amps 9.8
60 HZ frequency
4.6Editor score
Control Box 3/4HP
Franklin Manufacturer
3/4 HP 230V
Country US
Mechanical Components
4.7Editor score
Franklin 2823008110
1 1/2 HP 230V
1 Phase Control Box
2823008110 Part
Franklin Brand
4.7Editor score
1. Red Lion RLCB10-230 – Best Overall Control Box for Well Pump
Red Lion RLCB10-230
1 HP 230 Volt
NEMA Encl. 3 Rating
UL Listed USA and Canada
Capacitor Start Run Design
The Red Lion RLCB10-230 is a robust Control Box for Well Pump designed for 1 HP 230 Volt single phase deep well submersible pumps. With a 4.6 rating it offers reliable performance for both indoor and outdoor installations thanks to its NEMA Encl. 3 rating.
Pros
- Heavy duty box terminals
- NEMA Encl. 3 rating
- UL listed for safety
- Thermal protection included
- Designed for 3 wire pumps
Cons
- Verify pump wire count first
- Limited to 1 HP models
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Its heavy-duty box type terminals ensure secure connections while the capacitor start/run design with thermal protection protects the motor from overheating. The unit includes four 7/8-inch knockouts and three 1-1/8-inch knockouts for flexible wire routing.
While it is built to last and rigorously tested for continuous duty users must verify their pump is a 3-wire model as 2-wire pumps do not require a control box. Some Red Lion pumps come with one included so check the description.
This box is ideal for homeowners or professionals needing a verified UL listed control solution for standard 1 HP 3-wire submersible pumps. Its durable construction and safety certifications make it a top choice for long term water system reliability.
Safety and Durability
The NEMA Encl. 3 rating and UL listing ensure the box withstands environmental conditions and meets strict safety standards for residential and commercial use.
Installation Flexibility
Multiple knockouts and mounting holes allow for versatile installation options whether wall mounted or on a pole near your well head.
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2. Control Box 1 1/2HP – Best Value Control Box for Well Pump
Control Box 1 1/2HP
1 1/2 HP 230V
CSCR Control Box Type
Accepts up to #2 AWG
Pole or Wall Mounting
This Control Box for Well Pump targets 1 1/2 HP 230V single phase systems and earns a strong 4.7 rating from users. It features CSCR control technology and accepts wire up to #2 AWG for robust electrical connections.
Pros
- High 4.7 user rating
- Supports larger 1 1/2 HP
- Accepts thick #2 AWG wire
- Flexible mounting options
- CSCR technology included
Cons
- No detailed thermal info
- Basic enclosure specs listed
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The design allows for pole or wall mounting providing installation flexibility for various well setups. Its capacity to handle larger horsepower makes it suitable for deeper wells or higher demand water systems.
While the listing offers standard specs it lacks detailed thermal protection data compared to premium branded units. Buyers should ensure compatibility with their specific motor requirements before ordering this general purpose box.
It is a practical choice for those needing a reliable control box for 1 1/2 HP submersible pumps without excessive cost. The high rating suggests solid performance for standard residential or light commercial water applications.
Wire Capacity
Accepting up to #2 AWG wire ensures this box can handle the higher current demands of 1 1/2 HP motors safely and efficiently.
Mounting Versatility
Pole or wall mounting options give installers the freedom to position the box where it is most accessible and protected.
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3. Franklin Electric Control Box 2 Hp – Best Premium Control Box for Well Pump
Franklin Electric Control Box 2 Hp
Rated HP 2
1.5kw Power
Start capacitor 105-126 uf
Working capacitor 20 uf
The Franklin Electric Control Box 2 Hp delivers premium performance for 2 HP 230V single phase submersible water pumps. It is rated at 1.5kw with precise start and working capacitor values ensuring optimal motor startup and operation.
Pros
- 2 HP power output
- High wattage 1.5kw
- Specific capacitor ratings
- Thermal protector included
- Single phase 230V
Cons
- Higher price point
- Limited to 2 HP systems
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Included thermal protection and a start relay safeguard the motor against overloads and electrical stress. The unit weighs 6.75 lb and operates at 60Hz making it suitable for standard US electrical systems.
While it commands a higher price its specific component ratings and robust power handling justify the cost for demanding applications. Users should verify their pump matches the 2 HP rating to avoid mismatches.
This box is best for those with high capacity 2 HP submersible pumps needing a reliable branded control solution. Its detailed specs and thermal features make it a top choice for professional or heavy duty water systems.
Power Handling
With a 1.5kw rating and 2 HP capacity this box supports high output pumps that require consistent and stable electrical control.
Component Precision
Exact start and working capacitor ranges ensure the motor receives the correct phase shift and torque for efficient startup.
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4. FRANKLIN ELECTRIC 1 HP – Reliable Control Box for Well Pump
FRANKLIN ELECTRIC 1 HP
1 HP Franklin Electric
For 3 wire motors
230 V Single Phase
Made In USA
This Franklin Electric Control Box for Well Pump is designed for 1 HP 3 wire single phase submersible motors at 230 V. It carries a 4.6 rating and is made in the USA ensuring consistent manufacturing quality.
Pros
- Made In USA quality
- 1 HP standard rating
- Compatible with 3 wire
- 4.6 user rating
- Simple design
Cons
- Basic feature listing
- No extra specs noted
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The box provides essential control functions for standard well pumps without unnecessary complexity. Its focus on core compatibility makes it a straightforward upgrade for existing systems needing a reliable control solution.
While it lacks detailed specs in the listing users can trust Franklin Electric's reputation for durability and performance. Ensure your pump matches the 3 wire requirement as 2-wire models do not need this box.
Ideal for homeowners seeking a trusted brand for 1 HP submersible pumps this box offers dependable operation. Its simple design and domestic production appeal to those prioritizing reliability and ease of replacement.
Domestic Manufacturing
Made in the USA this control box adheres to strict quality standards ensuring reliable performance for your well pump system.
Motor Compatibility
Specifically designed for 3 wire motors it ensures proper phase shifting and control for standard submersible pump setups.
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5. FRANKLIN ELECTRIC 1/2 HP – Compact Control Box for Well Pump
FRANKLIN ELECTRIC 1/2 HP
1/2HP Franklin Electric
For 3 wire motors
230 V Single Phase
Made In USA
Designed for 1/2 HP 3 wire single phase motors this Franklin Electric Control Box for Well Pump operates at 230 V and earns a 4.6 rating. It is made in the USA ensuring consistent build quality and reliability.
Pros
- 1/2 HP rating
- Made In USA
- 4.6 user rating
- 3 wire compatible
- Standard 230 V
Cons
- Limited to smaller pumps
- Basic listing details
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The compact design fits standard well setups requiring control for smaller submersible pumps. Its straightforward specifications make it easy to match with compatible 3-wire motors found in many residential wells.
While it does not list extra features its association with Franklin Electric implies solid performance and longevity. Confirm your pump is 3-wire before ordering as 2-wire variants do not need a control box.
This box is a practical choice for smaller 1/2 HP submersible systems needing a trusted control solution. Its domestic manufacturing and high user rating make it a dependable option for standard water needs.
Smaller Pump Support
Tailored for 1/2 HP motors this box provides the necessary control for lighter duty submersible water pumps efficiently.
Reliable Brand
Franklin Electric is a respected name in pump components ensuring you get a control box that performs consistently.
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6. Star Control Box for 1/2 HP – Budget Friendly Control Box for Well Pump
Star Control Box for 1/2 HP
1/2 HP submersible
Heavy duty terminal block
Interchangeable industry control
Universal voltage relay
This Star Control Box for Well Pump is designed for 1/2 HP submersible systems and can be used indoors or outdoors. It features a heavy-duty terminal block and a universal voltage relay for flexible installation.
Pros
- Universal voltage relay
- Heavy duty terminals
- Interchangeable design
- Indoor or outdoor use
- Competitive pricing
Cons
- Lower rating than others
- Generic specs listed
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Its interchangeable design means it can replace many industry standard control boxes making it a versatile choice for replacements. The universal voltage relay simplifies wiring for different 230 volt setups without complex adjustments.
While it has a lower rating than some premium brands it offers solid features at a competitive price point. Users should check compatibility with their specific pump model to ensure a proper fit.
Ideal for budget conscious buyers needing a reliable control box for 1/2 HP pumps this unit delivers practical performance. Its interchangeable nature and heavy duty terminals make it a smart option for standard well setups.
Universal Compatibility
Interchangeable with industry control boxes this unit makes replacement easier for existing well systems requiring a standard control solution.
Versatile Installation
Designed for both indoor and outdoor use this box offers flexibility for different well head environments and protection needs.
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7. Franklin Electric 1 1/2 1.5 Hp – Durable Control Box for Well Pump
Franklin Electric 1 1/2 1.5 Hp
1.5 HP Franklin Electric
230 V Single Phase
For 3 wire plus Ground
Made In USA
This Franklin Electric Control Box for Well Pump targets 1.5 HP 3 wire plus ground submersible motors at 230 V single phase. It holds a strong 4.7 rating and is made in the USA ensuring quality construction.
Pros
- 1.5 HP capacity
- Made In USA
- High 4.7 rating
- Ground wire support
- Trusted brand
Cons
- No extra features noted
- Standard specs only
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The box provides essential control for medium power pumps with a focus on reliability and safety. Its ground wire support adds an extra layer of protection for the pump motor during operation.
While it lists basic specs the high user rating suggests consistent performance and satisfaction. Verify that your pump requires a control box and matches the 3 wire plus ground configuration before purchasing.
Ideal for those needing a dependable solution for 1.5 HP submersible pumps this box offers trusted quality. Its domestic manufacturing and strong ratings make it a solid choice for standard residential water systems.
Safety Features
Supporting 3 wire plus ground motors this box ensures proper grounding and control for safer pump operation.
Domestic Quality
Made in the USA this control box adheres to high manufacturing standards for reliable long term performance.
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8. GOULDS CentriPro 1 HP – Solid Control Box for Well Pump
GOULDS CentriPro 1 HP
Goulds 1 HP
Model CB10412
Max amps 9.8
60 HZ frequency
The GOULDS CentriPro Control Box for Well Pump is designed for 1 HP 3 wire 230 volt single phase submersible pumps with a max amp rating of 9.8 at 60 HZ. It earns a 4.6 rating for reliable performance.
Pros
- Goulds brand quality
- Model CB10412
- Max amps 9.8
- 60 HZ operation
- 3 wire 230V
Cons
- Limited amp info
- Standard features
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This unit provides standard control functions for Goulds CentriPro pumps ensuring compatibility and efficiency. The max amp rating helps users verify it matches their motor requirements before installation.
While it lists standard specs it carries the reputation of Goulds for durability in water systems. Confirm your pump is 3-wire and 230V to avoid mismatch issues during setup or replacement.
Best for owners of Goulds CentriPro pumps needing a replacement control box this model offers verified compatibility. Its consistent ratings and standard specs make it a safe choice for standard well operations.
Brand Compatibility
Designed for Goulds CentriPro pumps this control box ensures perfect compatibility with existing submersible water well pump systems.
Electrical Specs
With a max amp rating of 9.8 at 60 HZ this box handles standard 1 HP motor loads safely and efficiently.
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9. Control Box 3/4HP – Intermediate Control Box for Well Pump
Control Box 3/4HP
Franklin Manufacturer
3/4 HP 230V
Country US
Mechanical Components
This Control Box for Well Pump targets 3/4 HP 230V single phase systems and is manufactured by Franklin in the United States. It holds a strong 4.7 rating and includes essential mechanical components for operation.
Pros
- Franklin Manufacturer
- 3/4 HP capacity
- 230V 1 Phase
- High 4.7 rating
- US Made
Cons
- Basic specs listed
- No specific model
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Designed for intermediate power pumps it offers a balance between capacity and standard control functions. The US manufacturing suggests consistent quality and durability for residential well applications.
While it lacks detailed specs in the listing the high rating indicates solid performance and user satisfaction. Verify your pump matches the 3/4 HP rating to ensure compatibility and efficient operation.
Ideal for systems needing control for 3/4 HP submersible pumps this box offers trusted manufacturing and reliability. Its high rating and standard specs make it a practical choice for mid-size water requirements.
Manufacturer Reputation
Manufactured by Franklin in the US this control box benefits from trusted quality standards for consistent performance.
Mid-Range Power
Targeting 3/4 HP pumps this box handles intermediate loads effectively for standard residential well water systems.
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10. Franklin 2823008110 – Standard Control Box for Well Pump
Franklin 2823008110
1 1/2 HP 230V
1 Phase Control Box
2823008110 Part
Franklin Brand
This Franklin Control Box for Well Pump is part 2823008110 designed for 1 1/2 HP 230V single phase submersible motors. It holds a 4.7 rating and offers standard control functions for reliable water system operation.
Pros
- 1 1/2 HP rating
- 2823008110 Part
- Franklin Brand
- High 4.7 rating
- 1 Phase 230V
Cons
- Limited details
- Standard specs
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The specific part number ensures you receive the correct component for Franklin pump systems. Its 1 1/2 HP capacity makes it suitable for mid to high demand residential wells using 230V power.
While it lists basic specs the high rating and Franklin branding suggest consistent quality and user satisfaction. Ensure your pump requires a control box and matches the 3-wire configuration for proper function.
Ideal for those needing a verified replacement part for 1 1/2 HP Franklin pumps this box delivers reliability. Its strong rating and specific part number make it a dependable choice for standard water systems.
Part Number Accuracy
Part 2823008110 ensures you get the exact replacement control box designed for 1 1/2 HP Franklin submersible motors.
Power Rating
Designed for 1 1/2 HP 230V 1 Phase this box handles mid-range pump loads for efficient water delivery.
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Buying Guide – How to Choose the Best Control Box for Well Pump
Selecting the right control box requires matching your pump's specs and ensuring durability for long-term water system performance.
Horsepower Match
The control box must match the horsepower of your submersible pump exactly. Using a mismatched box can lead to motor failure or inefficient operation so always verify the HP rating on your pump label before purchasing.
Always confirm the HP rating on the pump label matches the control box specification for safe and efficient operation.
Voltage Requirements
Most submersible pumps run on 230V single phase power but some models may differ. Ensure the control box supports your system's voltage to prevent electrical damage or connection issues during installation and daily use.
Check your pump's voltage rating and match it with the control box specification to avoid electrical hazards.
Wire Configuration
Submersible pumps are either 2-wire or 3-wire designs. Only 3-wire pumps require a control box so verify your motor's wire count before ordering. Installing a control box on a 2-wire pump will prevent it from working correctly.
Determine if your pump is 3-wire before buying since 2-wire pumps do not need a control box.
Thermal Protection
Thermal protection inside the control box helps prevent motor overheating during extended use. Look for units that include built-in thermal protectors or start relays to extend your pump's lifespan and ensure safety during hot weather operation.
Choose a control box with thermal protection to safeguard the motor from overheating and extend its life.
Enclosure Rating
Outdoor installations need a control box with a durable enclosure rating like NEMA Encl. 3. This ensures the box resists weather conditions dust and moisture so it remains functional for years without corrosion or electrical hazards.
Pick a box with NEMA Encl. 3 rating for outdoor use to ensure weather resistance and safety.
Brand Reputation
Reputable brands like Franklin Electric Red Lion and Goulds offer tested and reliable components. A trusted brand often means better quality control customer support and warranty coverage which matters for long-term well system reliability.
Opt for known brands to get better quality assurance and support for your well pump system.
Terminal Quality
Heavy-duty terminals ensure secure electrical connections and reduce the risk of arcing or loose wiring. Look for control boxes with robust terminal blocks that can handle the specific wire gauge your pump requires without overheating.
Look for heavy-duty terminals to ensure secure wiring and reduce electrical connection risks.
Installation Features
Features like knockouts for wire entry and mounting holes simplify installation. A control box with flexible routing options allows for easier cable management and secure mounting near your well head or pump control area.
Check for knockouts and mounting options to simplify installation and keep wiring tidy.
How to Use and Care for Your Control Box for Well Pump
Always disconnect power before inspecting or installing the control box to prevent electrical shock. Verify the pump and box voltage match and confirm wire counts align before making any connections.
Mount the box securely using the provided holes in a dry accessible location away from direct flooding. Ensure terminals are tight and free of corrosion to maintain safe electrical flow to the pump.
Periodically check the box for dust or moisture buildup especially in outdoor installations. Clean around vents and knockouts to prevent debris accumulation that could affect cooling or cause wiring damage over time.
Frequently Asked Questions
Do 2-wire pumps need a control box?
No 2-wire submersible pumps do not require a control box because they have internal electronics for startup. Only 3-wire pumps need an external control box to manage the capacitor and relay functions properly.
What happens if the control box voltage does not match?
Using a control box with a mismatched voltage can damage the motor or cause immediate failure. Always ensure the control box voltage matches the pump's rated voltage exactly for safe and reliable operation.
Can I use a control box for both indoor and outdoor use?
Yes if the control box has an appropriate NEMA enclosure rating like Encl. 3 for outdoor protection. Check the product specifications to confirm it is rated for outdoor environmental conditions before installing outside.
How do I know if my pump needs a control box?
Check your pump label or manual for the wire count. If it is a 3-wire model it needs a control box. If it is a 2-wire model it typically does not require one for startup and operation.
What is the purpose of the thermal protector in a control box?
The thermal protector prevents the pump motor from overheating during extended operation. It cuts off power if the motor gets too hot extending its lifespan and reducing the risk of electrical fires or motor burnout.
Can I replace a control box with a universal model?
Yes universal models can replace many standard boxes if the HP voltage and wire count match your pump. Ensure the replacement meets your system's electrical specs to avoid compatibility issues during operation.
Final Thoughts on Choosing the Best Control Box for Well Pump
The top picks like the Red Lion RLCB10-230 and Franklin Electric 2 Hp offer reliable performance for standard submersible pumps. These models balance features durability and safety ratings for most residential needs.
When choosing prioritize matching your pump's HP voltage and wire count exactly. A correct fit ensures safe operation and extends the life of your water system without unexpected failures or electrical issues.
Prices and availability change frequently so verify current details on the product page before purchasing. Always double check your pump specifications to confirm the control box matches your system's requirements today.