Top 10 Best interlock kit in 2026

Last Updated - 6/11/2026

🏆Best Choice

EXCELFU

Generator Interlock Kit Compatible with Eaton Cutler Hammer BR SERIES 150 and 200 amp Panels, Generator Horizontal Electrical Interlock Kit, 1 1/4-1 7/16 inches Spacing Between Main and Branch Breaker

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

Main highlights

•Safe and Reliable: Generator interlock kit for Eaton Cutler Hammer provide a safe and cost-effective way to backfeeding of your home electrical appliances by a portable generator. Ideal solution for power outages or emergency backup power to keep your home geared up and running safely.
•Compatible Models: Generator Interlock Kit Compatible with Eaton/Cutler Hammer Interlock Kit for BR Series, BR series with plug-in neutral and CH-series with plug in neutral 150 and 200 amp
•Main Breaker Position: Single handle horizontal throw left (on) to right (off) 1 1/4 - 1 7/16 inches spacing between main breaker and branch breakers.
•Easy Installation: Easy to connect the generator to electrical panel and ensure the main breaker can never be on while the generator breaker is on.
•What You Get: 1 x Interlock Plate, 3 x Shoulder Screws, 3 x Hex Nuts, 1 x Drill Bit, 1 x Generator Start-Up Procedure Labels, 5 x Remind Label, 2 x Zip Ties, 1 x Instruction and EXCELFU 100% Satisfying Customer Service.

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$15.99

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Flngr

Generator Interlock Kit Compatible with Eaton or Cutler Hammer Vertical Throw CH Series 150 or 200 amp, 2 1/4" Spacing Between Main and Branch Breakers

9.7

ChoiceComparer.com Score

9.7

/ 10

Outstanding

Main highlights

•Compatible models:Generator Interlock Kits Compatible with Eaton / Culter Hammer with a single vertical-throw main breaker panels,2 1/4 Inch Spacing between main and generator breaker. Before buying,
•Application scenarios:Our kit provides a easy and safe solution when inconvenience caused by unexpected power outages. The interlock kit prevents both mains and generator power supply at the same time, it is used to safely direct generator power to any circuit in your home, while ensuring you can safely use all your household appliances
•Professional and safe:We specializes in Generator Interlock Kits. We produce high-quality products to provide safety for you and your family. Electricity safety is no smal
•Package includes:1 interlocking panel, 1 matching drill bit, 3 shoulder screws, 4 hex nuts, 5reminder labels, 2 fixing straps, and installation and use instructions included

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$24.68

$25.98

-5%

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Senshare

Generator Interlock Kit for Eaton Cutler Hammer BR & CH Series 150-200 Amp Panels, 1 1/4 to 1 7/16 Inch Spacing, Compatible with Eaton Interlock Kit 200 Amp, Safe Generator Backfeed Solution

9.5

ChoiceComparer.com Score

9.5

/ 10

Outstanding

Main highlights

•【Compatibility】This generator interlock kit fits Eaton/Cutler Hammer BR&CH Series with Plug on Neutral 150-200 amp panels, the spacing between main and the closest generator breaker is 1 1/4 to 1 7/16''
•【Safe Power Backup】This generator interlock kit is compatible with Eaton breaker panels and features a secure mechanical interlock that prevents the main and generator breakers from being switched on at the same time. A reliable backup power solution for outages and emergencies—keeping your home safe and powered
•【Easy Installation in Minutes】Compatible with Cutler Hammer generator interlock kit, this set includes a 3/16" drill bit and durable steel components for a secure fit. The step-by-step installation guide ensures a quick, hassle-free setup — even for first-time DIYers
•【Package Contents】Compatible with Eaton Interlock Kit 200 Amp and Cutler Hammer Generator Interlock Kit. Includes: 1 Interlock Plate, 6 Safety Labels, 2 Generator Breaker Retainer Straps, 1 x 3/16 Drill Bit, 1 Installation Guide
•【Customer Support】Our dedicated support team is available 24/7 to assist you. Your satisfaction is our priority—reliable help and guidance whenever needed

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$7.99

$13.99

-43%

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QYZZRS

Generator Interlock Kit Compatible with Eaton Cutler Hammer BR Series 150 and 200 amp Panels,1 1/4-1 7/16 inches Spacing Between Main and Branch Breaker,Professional and Interlock Kit(1Set)

9.4

ChoiceComparer.com Score

9.4

/ 10

Excellent

Main highlights

•This Interlock Kit Compatible with Eaton Cutler Hammer BR and CH Series Main 150 and 200 AMP Panels
•Interval Space Required：1 1/4 - 1 7/16 Inch Spacing between main and generator breaker. Make sure the model numbel and spacing is correct, and they will work.
•Installation Note: Before installing the interlocking kit, Attach the screws to the interlock kit first. Let's simulate the use of the test, so that we can better align the installation position, to avoid errors in the installation position, resulting in failure to use.
•Package：Our Generator Interlock kit include 1 × Interlock plate, 3 × Screws kit, 1 × Drill Bit, 1 × Instruction Bulletin, 2 × Generator Start-Up Procedure Label, 8 × Remind Label, 2 × Zip Ties.
•Safe use：the manual transfer switch device allow portable generator safe back feeding power supply to distribution panel and home line. Prevent utility and generator supplies from being ON at the same time. Aren't putting electrician in dangerous and damage electric devices during power outages.

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$7.99

$9.99

-20%

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XMK

Generator Interlock Kit Compatible with Eaton Cutler Hammer Only CH SERIES TAN Breaker 150 and 200 amp Panels,Generator Horizontal Electrical Interlock Kit,1 1/2 in Spacing Between Main Branch Breaker

9.2

ChoiceComparer.com Score

9.2

/ 10

Excellent

Main highlights

•Compatible Models: Generator interlock kit compatible with Eaton/Cutler Hammer interlock kit for CH series 150 and 200 amp, ONLY for CH panels with TAN breakers where the area of main breaker is depressed, NOT for CH panels with PON breakers where the area of main breaker is flat or raised. Please check the second picture for best fit.
•Main & Branch Breaker Space: Single handle horizontal throw left (on) to right (off) 1 1/2 inches spacing between main breaker and branch breakers.
•Safe and Reliable: Generator interlock kit for Eaton Cutler Hammer provide a safe and cost-effective way to backfeeding of your home electrical appliances by a portable generator. Ideal solution for power outages or emergency backup power to keep your home geared up and running safely.
•Easy Installation: Easy to connect the generator to Eaton/Cutler Hammer electrical panel and ensure the main breaker can never be on while the generator breaker is on. Moves smoothly when in operation and provide safety for your family.
•Complete Interlock Kits: 1 x Interlocking Plate, 3 x Shoulder Screws, 3 x Hex Nuts, 1 x Matching Drill Bit, 5 x Remind Labels, 2 x Zip Ties, 1 x Instruction and XMK 100% Satisfying Customer Service.

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$19.99

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XMK

Generator Interlock Kit for Eaton Cutler Hammer 100A and 125A BR Series Panels,Interlock Kit for Eaton Cutler Hammer 100 Amp and 125 Amp for BR Series Panels with Adjacent Main and Branch Breakers

9.1

ChoiceComparer.com Score

9.1

/ 10

Excellent

Main highlights

•Compatible Models: Generator interlock kit compatible with Cutler Hammer/Eaton interlock kit for BR Series 100 and 125 amp panels
•Main and Branch Breaker Position: Single handle horizontal throw left to right main breaker and adjacent branch breakers
•Safe and Reliable: Generator interlock kit for Eaton Cutler Hammer 100A and 125A provide a safe and cost-effective way to backfeeding of your home electrical appliances by a portable generator; Ideal solution for power outages or emergency backup power to keep your home geared up and running safely
•Easy Installation: Easy to connect the generator to Eaton/Cutler Hammer electrical panel and ensure the main breaker can never be on while the generator breaker is on; Moves smoothly when in operation and provide safety for your family
•Complete Interlock Kits: 1 x Interlocking Plate, 3 x Shoulder Screws, 3 x Hex Nuts, 1 x Matching Drill Bit, 1 x Generator Start-Up Procedure Labels, 5 x Remind Labels, 2 x Zip Ties, 1 x Instruction

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$15.99

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QYZZRS

QYZZRS Generator Interlock Kit Compatible with Eaton Cutler Hammer 100 Amp and 125 Amp Panels Breaker,for Safe Usage of Portable Power During Outage,Professional and Interlock Kit (1)

8.9

ChoiceComparer.com Score

8.9

/ 10

Great

Main highlights

•QYZZRS Generator Interlock Kit Compatible with Eaton Cutler Hammer 100 Amp and 125 Amp Panels Breaker.
•Installation Note: Before installing the interlocking kit, Attach the screws to the interlock kit first. Let's simulate the use of the test, so that we can better align the installation position, to avoid errors in the installation position, resulting in failure to use.
•Package：Our Generator Interlock kit include 1 × Interlock plate, 2 × Screws kit, 1 × Drill Bit, 1 × Instruction Bulletin, 2 × Generator Start-Up Procedure Label, 8 × Remind Label, 2 × Zip Ties.
•Safe use：the manual transfer switch device allow portable generator safe back feeding power supply to distribution panel and home line. Prevent utility and generator supplies from being ON at the same time. Aren't putting electrician in dangerous and damage electric devices during power outages.
•Includes detailed installation instructions

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$9.99

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HUBRV

Generator Interlock Kit Compatible with Eaton Cutler Hammer BR Series 150 and 200 Amp Panels, Generator Horizontal Electrical Interlock Kit, 1 7/16-1 1/4 Inches Spacing Between Main and GEN Breaker

8.8

ChoiceComparer.com Score

8.8

/ 10

Great

Main highlights

•Compatible Models: Fit the Eaton Cutler Hammer BR SERIES 150amp & 200amp Panels
•【Check the spacing】 The Spacing between main and branch breaker is 1 7/16-1 1/4 inches
•Prevents main power and generator from being on simultaneously, ensuring compliance with NEC regulations (e.g., NEC 230.85, NEC 702.7) and protecting utility workers from dangerous feedback currents
•Safe and Reliable: Generator interlock kit prevents both mains and generator power supply at the same time. The generator lockout kit is used to safely direct generator power to any circuit in your home, while ensuring you can safely use all your household appliances. Ideal solution to keep your home geared up and running safely while power outages.
•Complete Interlock Kits: 1 x Interlocking Plate, 3 x Shoulder Screws, 3 x Hex Nuts, 1 x Matching Drill Bit, 5 x Remind Labels, 2 x Zip Ties, 1 x Instruction and 100% Satisfying Customer Service.

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$9.49

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XMK

Generator Interlock Kit for Eaton Cutler Hammer Type CH Series 150 or 200 amp Panels TAN Breaker ONLY,Horizontal Main Generator Interlock Kit,1 1/2 Inch Spacing Between Main and Branch Breaker

8.6

ChoiceComparer.com Score

8.6

/ 10

Good

Main highlights

•Compatible Models: Generator interlock kit compatible with Cutler Hammer/Eaton interlock kit for CH series 150 and 200 amp, ONLY for CH panels with TAN breakers where the area of main breaker is depressed, NOT for CH panels with PON breakers where the area of main breaker is flat or raised; Please check the second picture for best fit
•Main & Branch Breaker Space: Single handle horizontal throw left (on) to right (off) 1 1/2 inches spacing between main breaker and branch breakers
•Safe and Reliable: Generator interlock kit for Eaton Cutler Hammer provide a safe and cost-effective way to backfeeding of your home electrical appliances by a portable generator; Ideal solution for power outages or emergency backup power to keep your home geared up and running safely
•Easy Installation: Easy to connect the generator to Eaton/Cutler Hammer electrical panel and ensure the main breaker can never be on while the generator breaker is on; Moves smoothly when in operation and provide safety for your family
•Complete Interlock Kits: 1 x Interlocking Plate, 3 x Shoulder Screws, 3 x Hex Nuts, 1 x Matching Drill Bit, 1 x Generator Start-Up Procedure Labels, 5 x Remind Labels, 2 x Zip Ties, 1 x Instruction

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$19.99

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SPZOCE

Generator Interlock Kit Compatible with Eaton Cutler Hammer BR Series 150 & 200 Amp Panels, 1 1/4-1 7/16 Inch Spacing Between Main Breaker and Branch Breaker, Professional Interlock Kit (EAT-PN200)

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•【Compatible Models】Generator Interlock Kit Compatible with Eaton/Cutler Hammer Interlock Kit for BR Series (with Plug-in Neutral) and CH Series (with Plug-in Neutral), 150 & 200 Amp. The spacing between the main breaker and the branch breaker is 1 1/4 - 1 7/16 inches.
•【Easy Installation】The product comes with a 3/16-inch drill bit made of sturdy steel, capable of easily penetrating the breaker panel. A detailed installation manual is also included.
•【Safety】 This kit helps prevent the inconvenience of accidental power outages by safely directing generator power to any circuit in your home. It allows for the secure connection of a generator while ensuring you can use all your household appliances.
•【Package Contents】 Our generator interlock kit includes: 1 × interlock plate, 3 × screws and nuts, 1 × generator start-up procedure label, 5 × reminder labels, 2 × zip ties, 1 × instructions, and 1 × drill bit.
•【Quality】 Made of aluminum alloy with an anodized surface finish and polished edges, this product is sturdy and durable. If our product does not meet your expectations, feel free to contact us, and we will send you a replacement.

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$23.99

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