If you’re searching for a generator interlock kit for electrical panel, you’re likely looking for a safe, reliable way to connect your generator during outages. The best overall pick is the Generator Interlock Kit for Eaton Cutler Hammer BR Series, known for its universal compatibility and durable design. The Square D Interlock Kit offers excellent value for homeowners with Square D panels, while the GE-compatible kits provide seamless integration for GE panels. These options come with tradeoffs, such as varying ease of installation or compatibility limitations. Keep reading to see how these kits compare and which one fits your specific needs.
Get the latest gadgets delivered free — and shop member deals
- Fast, free delivery on millions of items
- Access to Prime Big Deal Days deals on October 6–7
- Prime Video, Amazon Music and more included
Complete the kit
Key Takeaways
- Compatibility with specific electrical panel brands is critical; always verify your panel model before choosing a kit.
- Top-rated kits balance ease of installation with durability, reducing long-term maintenance concerns.
- The most versatile options support various panel types, but often come at a higher price.
- Affordable kits tend to have limited compatibility or require more technical skill to install correctly.
- Premium kits often feature more comprehensive safety features, but may be unnecessary for basic needs.
| Generator Interlock Kit for Eaton Cutler Hammer BR Series 150 & 200 Amp Panels | ![]() | Best Overall for Compatibility and Safety | Compatibility: Eaton/Cutler Hammer BR and CH Series with plug-in neutral | Amp Rating: 150 & 200 amps | Main Breaker Position: Single handle, horizontal throw left to right | VIEW ON AMAZON | See Our Full Breakdown |
| Generator Interlock Kit Compatible with GE General Electric | ![]() | Best for GE Panel Owners Needing Precise Fit | Compatibility: GE general electric breaker panels with single vertical throw main | Interval Space Required: 2 1/2 inches | Includes: Interlock plate, screws, drill bit, labels, zip ties | VIEW ON AMAZON | See Our Full Breakdown |
| Generator Interlock Kit Compatible with Eaton Cutler Hammer BR and CH Series | ![]() | Best for Dual Series Compatibility with Safety Focus | Compatibility: Eaton Cutler Hammer BR and CH Series main panels | Main Amp Rating: 150 and 200 amps | Interval Space Required: 1 1/4 – 1 7/16 inches | VIEW ON AMAZON | See Our Full Breakdown |
| Generator Interlock Kit for Square D QO & Homeline 150/200 Amp Panels | ![]() | Best for Popular Panel Compatibility and Durability | Compatible Panels: Square D QO and Homeline 150/200 Amp | Material: Aluminum alloy | Spacing: 1 3/8 inches | VIEW ON AMAZON | See Our Full Breakdown |
| Generator Interlock Kit for Eaton Cutler Hammer CH Series 150 & 200 Amp | ![]() | Best for Cost-Effective Safety with Clear Compatibility | Compatible Models: Eaton/Cutler Hammer CH series 150 & 200 amp | Main & Branch Breaker Space: 1 1/2 inches | Includes: Interlocking plate, shoulder screws, hex nuts, drill bit, labels, zip ties, instructions | VIEW ON AMAZON | See Our Full Breakdown |
| Joinfworld Generator Interlock Kit Compatible with Eaton Cutler Hammer 100A and 125A Panels | ![]() | Best Overall for Eaton Panels | Compatibility: Eaton Cutler Hammer 100A and 125A Panels | Includes: Interlock Plates, Remind Labels, Drill Bit, Screws, Nuts, Zip Ties, Installation Instructions | Material: Steel with PVD titanium plating | VIEW ON AMAZON | See Our Full Breakdown |
| Generator Interlock Kit for Eaton Cutler Hammer BR Series 100 & 125 Amp Panels | ![]() | Best for Eaton BR Series Panels | Compatible Models: Eaton Cutler Hammer BR Series 100 & 125 Amp Panels | Material: Aluminum alloy | Includes: Interlock plate, screws, nuts, labels, zip ties, drill bit, instructions | VIEW ON AMAZON | See Our Full Breakdown |
| Generator Interlock Kit for Eaton Cutler Hammer BR Series 150 & 200 Amp Panels | ![]() | Best for High-Amperage Eaton Panels | Compatible Models: Eaton/Cutler Hammer BR and CH Series | Amp Rating: 150 & 200 Amp | Material: Aluminum alloy | VIEW ON AMAZON | See Our Full Breakdown |
| Generator Interlock Kit for Square D QO and Homeline Panels | ![]() | Best for Square D Panels | Compatibility: Square D QO and Homeline 150/200 Amp Panels | Interval Space Required: 1 3/8 inches | Includes: Interlock plate, screws, drill bit, instructions, labels, zip ties | VIEW ON AMAZON | See Our Full Breakdown |
| Generator Interlock Kit for General Electric GE 150/200 Amp Panels | ![]() | Best for GE 150/200 Amp Panels | Compatible Panels: GE 150/200 Amp | Material: Aluminum alloy | Distance Between Main and Branch Breakers: 1 1/4 inches | VIEW ON AMAZON | See Our Full Breakdown |
| Generator Interlock Kit Compatible with Siemens Murray 150 or 200 Amp Panel | ![]() | Best Overall for Siemens and Murray Panels | Model Compatibility: Siemens/Murray 150 or 200 amp panels | Spacing: 7/8 to 1 1/4 inches | Wattage: 6 KW | VIEW ON AMAZON | See Our Full Breakdown |
| Generator Interlock Kit Compatible with General Electric GE 150 or 200 Amp Panels | ![]() | Best for GE Panel Owners Needing Safe, Easy Installation | Compatible Models: GE 150 or 200 Amp Panels | Main Breaker Spacing: 1 1/4 inches | Kit Components: Interlocking plate, screws, nuts, drill bit, labels, zip ties, instructions | VIEW ON AMAZON | See Our Full Breakdown |
| Generator Interlock Kit Compatible with Square D QO or Homeline 150/200 Amp Panels | ![]() | Best for Square D Panel Users Needing a Reliable Connection | Compatible Panels: Square D QO, Homeline | Amp Rating: 150 or 200 amp | Spacing: 1 3/8 inches | VIEW ON AMAZON | See Our Full Breakdown |
| Generator Interlock Kit Compatible with ITE, Gould, Murray, Siemens, and Thomas and Betts, 150 or 200 Amp Panels | ![]() | Best for Multi-Brand Compatibility and Flexibility | Compatible Models: ITE, Gould, Murray, Siemens, Thomas & Betts | Panel Amperage: 150 or 200 amp | Spacing: 1 1/4 inch | VIEW ON AMAZON | See Our Full Breakdown |
| Generator Interlock Kit Compatible with Siemens or Murray 150 & 200 Amp Panels | ![]() | Best Premium for Durable, High-Quality Materials | Compatible Models: Siemens or Murray 150 & 200 amp panels | Spacing: 7/8 – 1 1/4 inches | Material: Aluminum alloy | VIEW ON AMAZON | See Our Full Breakdown |
More Details on Our Top Picks
Generator Interlock Kit for Eaton Cutler Hammer BR Series 150 & 200 Amp Panels
This kit stands out for its broad compatibility with Eaton/Cutler Hammer BR and CH series panels, making it a versatile choice for homeowners with these specific panels. Compared to the Eaton Cutler Hammer CH Series Interlock Kit (Product 5), it offers similar safety features but extends compatibility across multiple panel models, reducing the need for multiple kits. The installation process is straightforward for those with basic electrical skills, thanks to comprehensive hardware and instructions. However, it requires some familiarity with panel spacing and breaker positions, which might be a hurdle for total beginners. Its main tradeoff is that it’s limited to specific panel series and doesn’t include a dedicated generator panel, so users need to ensure their setup matches.
Pros:- Provides a safe method for backfeeding during power outages
- Compatible with multiple Eaton/Cutler Hammer panel models
- Includes all necessary hardware and detailed instructions
Cons:- Installation may require basic electrical knowledge
- Limited to specific panel series (BR and CH with plug-in neutral)
Best for: Homeowners with Eaton/Cutler Hammer BR or CH panels who want a reliable, multi-model compatible interlock kit.
Not ideal for: Individuals with non-compatible panel brands or those lacking basic electrical skills, since installation can be complex without prior experience.
- Compatibility:Eaton/Cutler Hammer BR and CH Series with plug-in neutral
- Amp Rating:150 & 200 amps
- Main Breaker Position:Single handle, horizontal throw left to right
- Spacing:1 1/4 – 1 7/16 inches
- Installation:Easy to connect, includes hardware
Our verdict“This kit is ideal for Eaton/Cutler Hammer panel owners seeking compatibility and safety without high costs.”
Generator Interlock Kit Compatible with GE General Electric
This kit is designed specifically for GE panels with a single vertical throw main, ensuring an exact fit that minimizes installation errors. It differs from the Eaton options (Product 1 and Product 3) by focusing solely on GE panels, which means it offers a tailored solution but sacrifices versatility. The inclusion of a drill bit, labels, and comprehensive instructions simplifies installation for those comfortable with DIY projects, though precise alignment is critical to avoid misoperation. Compared with universal kits, this one excels in ensuring safety within its intended panel but isn’t suitable for other brands or panel types. Its main tradeoff is the necessity for careful installation and the requirement of proper tools.
Pros:- Ensures safe power transfer from generator to home
- Includes all necessary installation components and labels
- Tailored fit for GE single vertical throw main panels
Cons:- Installation requires careful alignment and proper tools
- Limited to GE panels, not universal
Best for: GE panel owners who want a precise, brand-specific interlock kit that guarantees safe operation.
Not ideal for: Users with panels from other brands or those unfamiliar with detailed installation procedures, as it demands careful measurement and alignment.
- Compatibility:GE general electric breaker panels with single vertical throw main
- Interval Space Required:2 1/2 inches
- Includes:Interlock plate, screws, drill bit, labels, zip ties
- Installation:Manual, requires careful alignment
Our verdict“This kit offers a precise, safe solution for GE panel owners who can handle careful installation procedures.”
Generator Interlock Kit Compatible with Eaton Cutler Hammer BR and CH Series
This kit is a solid choice for homeowners with Eaton Cutler Hammer BR and CH series panels, covering the most common models for these brands. Its compatibility with both series simplifies decision-making compared to products that target a single series, like Product 5. The inclusion of a detailed instruction bulletin and labels helps facilitate correct installation, but it still requires a careful approach, especially to measure spacing accurately. Compared with the Eaton BR series-only kit (Product 1), it offers broader coverage but may involve a slightly more complex installation process due to different panel configurations. The main tradeoff is that it’s limited to Eaton panels and requires space measurement and alignment skills.
Pros:- Ensures safe transfer of power between utility and generator
- Compatible with two popular Eaton series panels
- Includes all necessary parts and clear instructions
Cons:- Requires precise measurement and space planning
- Installation can be complex for non-professionals
Best for: Homeowners with Eaton BR or CH series panels seeking a comprehensive, reliable interlock kit for multiple panel types.
Not ideal for: Individuals with non-Eaton panels or those uncomfortable with detailed measurements and manual setup.
- Compatibility:Eaton Cutler Hammer BR and CH Series main panels
- Main Amp Rating:150 and 200 amps
- Interval Space Required:1 1/4 – 1 7/16 inches
- Package Contents:Interlock plate, screws, drill bit, labels, zip ties
Our verdict“This kit is suited for Eaton panel owners who want a versatile, safety-focused solution for multiple panel types.”
Generator Interlock Kit for Square D QO & Homeline 150/200 Amp Panels
This kit is tailored for Square D QO and Homeline panels, two of the most common residential panels, making it a practical choice for many homeowners. Its aluminum alloy construction promises durability, and the inclusion of detailed instructions and a full installation kit simplifies setup. Compared to Eaton options (Product 1 and Product 3), it focuses on a different brand but offers similar safety features, such as preventing simultaneous utility and generator power. However, it may require some technical skill during installation, especially for aligning the interlock plate properly. Its main drawback is that it’s only compatible with specific panel models, so compatibility must be confirmed beforehand.
Pros:- Compatible with popular Square D panels
- Durable aluminum alloy construction
- Includes comprehensive installation tools and instructions
Cons:- Installation may require technical skill
- Limited to specific panel models
Best for: Homeowners with Square D QO or Homeline panels who prioritize durability and ease of use.
Not ideal for: Users with panels outside these brands or those who prefer a more universal solution with broader compatibility.
- Compatible Panels:Square D QO and Homeline 150/200 Amp
- Material:Aluminum alloy
- Spacing:1 3/8 inches
- Includes:Interlock plate, screws, nuts, zip ties, drill bit, instructions
Our verdict“This kit suits users with Square D panels seeking a durable, straightforward interlock solution.”
Generator Interlock Kit for Eaton Cutler Hammer CH Series 150 & 200 Amp
This kit offers a straightforward, cost-effective way for Eaton/Cutler Hammer CH series panel owners to backfeed safely during outages. It shares similarities with Product 1, especially in compatibility with CH series panels, but distinguishes itself by emphasizing an affordable price point and including all necessary components for a complete installation. Its design ensures the main breaker cannot be on while the generator breaker is active, providing essential safety. Compared to the more feature-rich Product 5, it may lack some of the detailed labeling options, but it simplifies the process for users comfortable with basic electrical work. The main limitation is that it only fits panels with a depressed main breaker area and requires measuring spacing before installation.
Pros:- Provides a safe, reliable backfeed method
- Easy to install with all necessary components
- Ensures main breaker cannot be on while generator breaker is active
Cons:- Limited to CH panels with depressed main breaker area
- Requires checking panel compatibility before installation
Best for: Cost-conscious homeowners with Eaton/Cutler Hammer CH panels who want a reliable, safe interlock at a lower price.
Not ideal for: Users with panels outside the CH series or panels with PON breakers, as it’s not compatible with those configurations.
- Compatible Models:Eaton/Cutler Hammer CH series 150 & 200 amp
- Main & Branch Breaker Space:1 1/2 inches
- Includes:Interlocking plate, shoulder screws, hex nuts, drill bit, labels, zip ties, instructions
Our verdict“This kit is an affordable, effective option for Eaton CH panel owners prioritizing safety and simplicity.”
Joinfworld Generator Interlock Kit Compatible with Eaton Cutler Hammer 100A and 125A Panels
This kit stands out for its broad compatibility with Eaton Cutler Hammer 100A and 125A panels, offering a reliable solution for homeowners seeking a straightforward installation. Compared with the Eaton BR Series kit, it provides all necessary accessories in one package, making installation more seamless. However, it requires drilling into the panel cover, which could be challenging for those unfamiliar with panel work. Its steel construction with PVD titanium plating ensures durability, but the mounting process demands some technical skill. This pick makes the most sense for those with basic DIY skills who want a dependable, versatile interlock solution for Eaton panels.
Pros:- Compatible with popular Eaton Cutler Hammer panels
- Includes all necessary installation accessories
- Prevents simultaneous utility and generator power for safety
Cons:- Requires drilling into the panel cover, which may be difficult for some users
- Installation may need basic technical skills
Best for: Homeowners with Eaton Cutler Hammer panels who want a durable, all-in-one interlock kit with reliable safety features
Not ideal for: Users with no DIY experience or those uncomfortable drilling into their panel cover, as installation can be challenging
- Compatibility:Eaton Cutler Hammer 100A and 125A Panels
- Includes:Interlock Plates, Remind Labels, Drill Bit, Screws, Nuts, Zip Ties, Installation Instructions
- Material:Steel with PVD titanium plating
Our verdict“This kit suits capable DIYers seeking a durable, compatible solution for Eaton panels without a high price tag.”
Generator Interlock Kit for Eaton Cutler Hammer BR Series 100 & 125 Amp Panels
This interlock kit is tailored specifically for Eaton BR Series panels, offering a durable aluminum alloy construction that boosts longevity compared to steel options like Joinfworld. It includes a comprehensive kit with labels, a drill bit, and all mounting hardware, making installation easier for those familiar with basic mechanical tasks. Its limited compatibility—only with BR Series—means it’s less flexible than some universal options, but for owners of these panels, it provides a precise fit. The main tradeoff is that it requires some mechanical knowledge for proper installation, which could pose a barrier for complete novices. Overall, this kit makes the most sense for Eaton BR Series owners wanting a durable, easy-to-install safety upgrade.
Pros:- Compatible specifically with Eaton BR Series panels
- Durable aluminum alloy construction
- Includes comprehensive installation kit with labels and drill bit
Cons:- Limited to Eaton BR Series panels
- Requires basic mechanical skills for installation
Best for: Owners of Eaton BR Series panels who prioritize durability and a complete installation kit
Not ideal for: Those with non-BR series Eaton panels or no mechanical skills, as it’s designed for specific models
- Compatible Models:Eaton Cutler Hammer BR Series 100 & 125 Amp Panels
- Material:Aluminum alloy
- Includes:Interlock plate, screws, nuts, labels, zip ties, drill bit, instructions
Our verdict“Ideal for Eaton BR Series panel owners seeking a high-quality, straightforward interlock solution with durable materials.”
Generator Interlock Kit for Eaton Cutler Hammer BR Series 150 & 200 Amp Panels
This kit is designed for larger Eaton/Cutler Hammer panels of 150 and 200 amps, providing a robust aluminum alloy construction that offers longevity under demanding load conditions. It’s compatible with both BR and CH series panels, making it versatile for higher-capacity systems. The inclusion of installation tools and detailed instructions simplifies setup, but the need for drilling can be a hurdle for less experienced users. Compared with smaller capacity kits, this one handles higher amperage safely but demands more careful installation to avoid misalignment. It’s best suited for those with some technical skill or professional assistance, seeking a reliable, heavy-duty interlock.
Pros:- Compatible with Eaton/Cutler Hammer BR and CH Series
- High amperage compatibility (150 & 200 Amp)
- Includes installation tools and detailed instructions
Cons:- Requires drilling for installation
- Installation complexity may challenge inexperienced users
Best for: Owners of 150/200 Amp Eaton panels needing a heavy-duty, versatile interlock kit with comprehensive installation support
Not ideal for: DIY novices or users with smaller panels, as installation can be complex and involves drilling
- Compatible Models:Eaton/Cutler Hammer BR and CH Series
- Amp Rating:150 & 200 Amp
- Material:Aluminum alloy
Our verdict“This kit is best suited for professional installers or experienced DIYers handling large Eaton panels with high loads.”
Generator Interlock Kit for Square D QO and Homeline Panels
This interlock kit is designed specifically for Square D QO and Homeline panels of 150 and 200 amps, providing a safe way to backfeed portable generators. Its clear, comprehensive installation kit includes labels, a drill bit, and all mounting hardware, making it accessible for those with some electrical knowledge. Compared to Eaton-specific options, this kit’s universal design offers flexibility but may require more precise installation to ensure proper operation. Its lightweight build and simple setup are appealing, yet the need for careful alignment and some electrical familiarity means it’s less suitable for complete beginners. It’s an excellent choice for Square D owners comfortable with basic electrical work.
Pros:- Compatible with popular Square D QO and Homeline panels
- Includes a complete installation kit with labels and drill bit
- Ensures safe backfeeding and prevents hazardous conditions
Cons:- Requires precise installation and alignment
- Some electrical knowledge needed for proper setup
Best for: Square D QO and Homeline panel owners who want a straightforward, safe generator interlock solution
Not ideal for: Homeowners unfamiliar with electrical installations or those with panels outside the compatible models
- Compatibility:Square D QO and Homeline 150/200 Amp Panels
- Interval Space Required:1 3/8 inches
- Includes:Interlock plate, screws, drill bit, instructions, labels, zip ties
Our verdict“This kit is ideal for Square D panel owners seeking a reliable, easy-to-install backfeeding safety device with comprehensive accessories.”
Generator Interlock Kit for General Electric GE 150/200 Amp Panels
This interlock kit is tailored for GE panels of 150 and 200 amps, with an aluminum alloy build that offers durability similar to Eaton and Square D options. Its straightforward design includes all necessary components, such as a drill bit and labels, facilitating installation for users with some technical skills. Compared to the Eaton kits, the GE-specific option might lack the universal adaptability but offers a perfect fit for GE panels. Drilling into the panel remains a challenge, especially for those unfamiliar with electrical work. This kit is best suited for GE panel owners who want a reliable, specifically designed safety device without investing in more complex systems.
Pros:- Compatible with GE 150/200 Amp panels
- Includes all necessary installation components
- Made of durable aluminum alloy with anodized finish
Cons:- Requires drilling for installation
- Designed specifically for certain GE models
Best for: GE 150/200 Amp panel owners needing a durable, reliable interlock with specific model compatibility
Not ideal for: People without experience in drilling into panels or those with panels outside the specified models
- Compatible Panels:GE 150/200 Amp
- Material:Aluminum alloy
- Distance Between Main and Branch Breakers:1 1/4 inches
Our verdict“This kit is best for GE panel owners looking for a precise, durable interlock that fits their system perfectly.”
Generator Interlock Kit Compatible with Siemens Murray 150 or 200 Amp Panel
This interlock kit stands out for its tailored compatibility with Siemens and Murray panels, making it a reliable choice for homeowners with these specific brands. Compared with the Generator Interlock Kit for Siemens or Murray 150 & 200 Amp Panels, it offers a straightforward installation with all necessary parts included, but is limited to panels with particular spacing measurements. Its durable aluminum or steel construction ensures long-term performance, and the inclusion of a comprehensive manual simplifies installation for those with some electrical experience. The main tradeoff is its narrow compatibility scope, so it won’t suit other brands or panels with different spacing requirements. This kit is ideal for homeowners with Siemens or Murray panels who prioritize safe, dependable power transfer without extensive customization.
Pros:- Ensures safe and reliable power transfer during outages
- Includes all necessary installation components
- Easy to install and operate
Cons:- Compatibility limited to specific panel models and spacing
- Requires careful measurement for proper fit
- Only suitable for 150 or 200 amp panels
Best for: Homeowners with Siemens or Murray 150/200 amp panels seeking a reliable, brand-specific solution.
Not ideal for: People with panels from other brands like GE or Square D, or those who need a universal kit that fits multiple brands.
- Model Compatibility:Siemens/Murray 150 or 200 amp panels
- Spacing:7/8 to 1 1/4 inches
- Wattage:6 KW
- Power Source:Portable Generator
- Current Rating:200 A
- Material Type:Aluminum or Steel
Our verdict“This kit makes the most sense for Siemens and Murray panel owners who want a dependable, straightforward installation experience.”
Generator Interlock Kit Compatible with General Electric GE 150 or 200 Amp Panels
This interlock kit is designed specifically for GE 150 and 200 Amp panels, making it a solid choice for those with GE systems. It ensures safe operation by preventing simultaneous mains and generator power, similar to the Generator Interlock Kit for Square D QO or Homeline panels, but with a focus on GE panels. Its inclusion of all necessary hardware, including a drill bit, simplifies installation for those comfortable with basic electrical tasks. While it offers reliable safety, its specificity to GE panels limits its usefulness for owners of other brands. The kit’s straightforward design and comprehensive components make it an attractive option for GE users, but it’s not suitable for those with non-GE panels needing a universal solution.
Pros:- Ensures safe operation by preventing mains and generator overlap
- Includes all necessary components, including drill bit
- Simple installation process for those with basic electrical knowledge
Cons:- Designed specifically for GE panels, not universal
- Requires some electrical familiarity for proper installation
Best for: Homeowners with GE 150/200 amp panels seeking a dedicated, easy-to-install interlock solution.
Not ideal for: Users with panels from other brands or those who prefer a universal kit compatible with multiple brands.
- Compatible Models:GE 150 or 200 Amp Panels
- Main Breaker Spacing:1 1/4 inches
- Kit Components:Interlocking plate, screws, nuts, drill bit, labels, zip ties, instructions
Our verdict“This kit is best suited for GE panel owners who want a dedicated, straightforward safety upgrade without dealing with complex wiring.”
Generator Interlock Kit Compatible with Square D QO or Homeline 150/200 Amp Panels
This interlock kit is tailored for Square D QO and Homeline panels, offering a practical solution for homeowners with these popular brands. It features an interlock plate and all installation hardware, including a drill bit, making setup manageable for those with basic electrical skills. Compared with the GE-specific kit, it provides compatibility with a different, widely used panel system, but requires drilling into the panel, which might be intimidating for some users. Its precise spacing of 1 3/8 inches ensures a secure fit, but limits flexibility for different panel models. Overall, this kit balances ease of installation with reliable safety, making it well-suited for Square D owners willing to drill into their panels.
Pros:- Easy to install with included drill bit and instructions
- Ensures safe generator connection during outages
- Compatible with popular Square D panels
Cons:- Requires drilling into the breaker panel
- Limited to specific panel models and configurations
Best for: Homeowners with Square D QO or Homeline panels who are comfortable drilling into their panels for a secure generator connection.
Not ideal for: Users with panels from other brands or those uncomfortable with drilling and modifying their panel boxes.
- Compatible Panels:Square D QO, Homeline
- Amp Rating:150 or 200 amp
- Spacing:1 3/8 inches
- Package Contents:Interlock plate, screws, nuts, labels, zip ties, drill bit
Our verdict“This kit makes the most sense for Square D owners who don’t mind drilling into their panels for a secure, safe generator connection.”
Generator Interlock Kit Compatible with ITE, Gould, Murray, Siemens, and Thomas and Betts, 150 or 200 Amp Panels
This versatile interlock kit provides compatibility across multiple brands including ITE, Gould, Murray, Siemens, and Thomas and Betts, making it an excellent choice for homes with mixed panel types or future upgrades. Its 1 1/4 inch spacing requirement is similar to other multi-brand kits but could limit installation in tight spaces. The inclusion of all necessary hardware and a drill bit simplifies setup, but its broad compatibility comes with the tradeoff of needing precise measurement and potentially more complex installation steps. Compared to brand-specific options like the Siemens Murray kit, it offers greater flexibility, but users must verify panel spacing and compatibility beforehand.
Pros:- Compatible with multiple panel brands
- Includes all hardware and drill bit for easier installation
- Ensures safe generator connection without additional wiring
Cons:- Requires 1 1/4 inch spacing between breakers
- Limited to 150 or 200 amp panels
- Installation may be more complex for non-expert users
Best for: Homeowners with multiple panel brands or planning future panel upgrades, seeking a universal interlock solution.
Not ideal for: Those with only a single brand panel or very tight panel spacing, where installation may be more complicated.
- Compatible Models:ITE, Gould, Murray, Siemens, Thomas & Betts
- Panel Amperage:150 or 200 amp
- Spacing:1 1/4 inch
- Package Contents:Interlock plate, screws, nuts, labels, zip ties, instruction
Our verdict“This kit is best for households with diverse panels or future upgrade plans, offering broad compatibility at the cost of slightly more involved installation.”
Generator Interlock Kit Compatible with Siemens or Murray 150 & 200 Amp Panels
This interlock kit emphasizes durability with its aluminum alloy construction, making it a premium option for Siemens and Murray panel owners who value longevity. Its compatibility with 150 and 200 amp panels and inclusion of all necessary installation components make it a comprehensive package. Compared to the GE or Square D kits, this option prioritizes durability and detailed instructions, but requires drilling into the panel, which may be daunting for some users. Its robust build and detailed manual justify a higher price point, though the need for some electrical knowledge remains for proper installation. This pick is ideal for those who want a long-lasting, high-quality interlock solution.
Pros:- Made of durable aluminum alloy for longevity
- Includes comprehensive manual and all installation components
- Prevents accidental power outages with safe generator connection
Cons:- Requires drilling into the panel, which may intimidate some users
- Compatibility limited to specific panel models
Best for: Homeowners with Siemens or Murray panels who prioritize durability and detailed instructions over price and ease of installation.
Not ideal for: Less experienced DIYers or those with panels from other brands who cannot accommodate drilling or specific compatibility requirements.
- Compatible Models:Siemens or Murray 150 & 200 amp panels
- Spacing:7/8 – 1 1/4 inches
- Material:Aluminum alloy
- Included Components:Interlock plate, screws, nuts, labels, zip ties, instructions
Our verdict“This kit suits owners who want a durable, high-quality interlock that emphasizes long-term performance and detailed guidance.”

How We Picked
The products in this roundup were evaluated based on compatibility with popular panel brands, ease of installation, build quality, safety features, and overall value. We prioritized kits that offer clear installation instructions and reliable performance under typical emergency conditions. Compatibility was a key factor, since a kit must match your panel’s brand and amperage for safe operation. We ranked products higher if they combined affordability with proven durability, and selected premium options for their advanced safety features. This approach ensures that each pick serves a specific buyer need, from budget-conscious homeowners to those seeking maximum safety and convenience.Factors to Consider When Choosing Generator Interlock Kit For Electrical Panel
Choosing the right generator interlock kit requires understanding several key factors that influence safety, compatibility, and installation ease. Beyond basic specifications, it’s important to consider how your panel’s brand and amperage impact your choice, as well as the safety features included in the kit. Proper installation is critical to avoid electrical hazards, so selecting a kit with clear instructions or professional support can make a difference. Balancing cost with quality is essential, especially since a poorly fitting kit can compromise safety or longevity. Keep these considerations in mind as you weigh your options.Compatibility With Your Electrical Panel
The most important factor is ensuring the interlock kit matches your panel’s brand and model. Many kits are designed specifically for brands like Eaton, Square D, GE, or Siemens. Using an incompatible kit can lead to improper operation or safety hazards. Always double-check the amperage rating and panel configuration before purchasing. Some universal kits claim compatibility with multiple brands, but verifying their fit with your specific panel is essential to avoid installation issues or safety risks.Ease of Installation
A kit that is straightforward to install can save you time and reduce the chance of mistakes. Look for products with detailed instructions, clear labeling, and minimal required tools. Some kits are designed for DIY installation, while others recommend professional setup. Poor installation can lead to malfunction or electrical shock hazards, so weigh your comfort with electrical work against the complexity of the kit. Investing in a kit with good customer support can also ease installation concerns.Safety Features
Safety should be a top priority. High-quality interlock kits include features like lockout mechanisms or clear visual indicators that prevent back-feeding and accidental energizing of the main grid. Cheaper kits may lack these safety components, increasing risk during generator setup. Consider kits that conform to electrical codes and include safety certifications. The added safety features might cost more upfront but can protect your home and loved ones during emergencies.Build Quality and Durability
Since generator interlock kits are used during emergencies, durability is key. Look for kits made from corrosion-resistant materials with solid construction. Cheaper plastic components or flimsy metal can degrade over time, especially in outdoor environments. A well-built kit maintains safety and performance over the years, making it a worthwhile investment. Reading customer reviews can also reveal real-world durability insights.Cost and Value
While budget options may seem attractive, they often come with limitations in compatibility or safety features. Conversely, premium kits tend to offer enhanced safety and easier installation but at a higher price. Aim for a kit that balances cost with the features you need. Remember, a poorly fitting or low-quality kit can lead to costly repairs or dangerous situations, so don’t compromise safety for the lowest price.Frequently Asked Questions
Can I install a generator interlock kit myself?
Installing a generator interlock kit can be a feasible DIY project if you have basic electrical knowledge and experience. However, because improper installation can pose safety risks, many homeowners prefer to hire a licensed electrician. Always follow the manufacturer’s instructions closely, and check local electrical codes before proceeding. Professional installation ensures your setup meets safety standards and functions reliably during power outages.
Will a universal generator interlock kit work with my panel?
Universal kits claim to support multiple panel brands, but compatibility is not guaranteed. The key is verifying the kit’s specifications against your panel’s brand, model, and amperage. A poorly matched kit can cause operational issues or safety hazards. It’s best to consult the product documentation or contact the manufacturer to confirm compatibility, especially if your panel is an uncommon or older model.
Are more expensive interlock kits worth the extra cost?
Higher-priced kits often include advanced safety features, better materials, and easier installation options. If safety, longevity, and ease of use are priorities, investing in a premium kit can be justified. However, for basic needs or smaller panels, a well-reviewed budget option might suffice. Always assess whether the additional features align with your specific requirements before opting for the more expensive choice.
How do I ensure my interlock kit complies with local electrical codes?
To ensure compliance, start by reviewing your local electrical codes and regulations related to generator connections. Choose a kit certified by recognized standards organizations like UL or CSA. Consulting a licensed electrician is often the best way to confirm that your installation meets all safety and code requirements. Proper documentation and certification help prevent legal issues and ensure safe operation during emergencies.
What is the typical lifespan of a generator interlock kit?
Most interlock kits are designed to last many years with proper maintenance, typically 10-20 years. Factors influencing lifespan include material quality, environmental exposure, and installation quality. Outdoor installations require rust-resistant materials to prevent corrosion. Regular inspections and cleaning can extend the service life, ensuring the safety and reliability of your generator setup when needed most.
Conclusion
For those seeking a reliable, versatile solution, the Generator Interlock Kit for Eaton Cutler Hammer BR Series stands out as the best overall choice, thanks to its broad compatibility and sturdy design. Homeowners on a budget will find the Square D Interlock Kit offers excellent value, especially if their panel matches. For those prioritizing safety and premium features, a high-end model with advanced safety mechanisms makes sense. Beginners or those with straightforward needs should opt for kits with clear instructions and strong customer support. Ultimately, matching the kit to your panel type, safety needs, and budget will lead to the best setup for your home.
As an affiliate, we earn on qualifying purchases.Fall Picks
fall essentials

















