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Best magnetic circuit breakers - April 2026

Last Updated - April 3, 2026

1
Best Choice

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Square D by Schneider Electric

Square D - Tandem mini Circuit Breaker, QO, 2 x 1 Pole at 20A, 120/240VAC, 10kA, Plug in Mount, Clam Pack - QO2020C

Square D by Schneider Electric

$42.40

More Details
Main highlights
- Trip thermally (in an overload situation) or magnetically (under a short circuit situation)
- Plug-in installation
- Learn about general NEC 2020 updates, contact your local building inspector for code adoptions and details
- Designed to protect against overloads and short-circuits
- Compatible only with QO panels that allow tandem breakers
$42.40
2

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

FalconSupply

FalconSupply Genuine Square D QO120 QO 20 Amp Circuit Breaker Kit (2 Pack), Single Pole, 20A, 120V, 10kAIC, Plug-in for QO Load Centers & Panel Box, Visi-Trip, New Replacement

FalconSupply

$33.99

More Details
Main highlights
- RELIABLE 20A OVERCURRENT PROTECTION — These UL Listed single-pole breakers provide essential thermal-magnetic protection for standard 20 Amp circuits. They are engineered to safeguard expensive wiring and connected 120V equipment from both sustained thermal overloads and instantaneous high-current short-circuit events. Their 10,000 Ampere Interrupting Capacity (10kAIC) is specifically rated to safely handle significant fault currents found in typical 120/240V AC 60Hz residential electrical services.
- QO SYSTEM COMPATIBILITY & SPECIFICATIONS — Designed with a robust plug-in mount for exclusive use in Square D QO-series load centers, panelboards, and CSEDs (Combined Service Entrance Devices) which feature the shielded copper bus bar system. The box lug terminals accept a wire size range of #14 to #8 AWG for both aluminum (Al) and copper (Cu) conductors and require a tightening torque of 35 lb-in. These components are UL Listed and CSA Certified, meeting rigorous North American safety and performance standards.
- INSTALLATION BUNDLE — This is a value-added package from FalconSupply. The box includes the two (2) genuine QO120 breakers, one (1) individually sealed electronics cleaning wipe for bus bar preparation, and one (1) Pro-Finishing Hardware Pack. Each hardware pack contains two professional-grade, zinc-plated steel combination-drive panel cover machine screws and one green hex-head grounding machine screw for convenience.
- EXCLUSIVE VISI-TRIP INDICATOR — Features the signature Square D Visi-Trip indicator, a red flag that appears in a dedicated window on the breaker's face during a trip event. This industry-leading function allows for immediate visual identification of the specific faulted circuit from the front of a busy panel without requiring any tools for diagnostics. This simplifies the troubleshooting process for electricians and homeowners alike, significantly reducing downtime when restoring power to lighting or outlets.
- AUTHENTIC OEM COMPONENT — This kit is built around two (2) factory-new, unused, and authentic Original Equipment Manufacturer (OEM) Square D QO120 circuit breakers. The QO series is Square D's premium, professional-grade line of circuit protection. These components are sourced to deliver genuine Square D technology, known for its benchmark reliability and precise performance. Ideal for new construction, electrical system upgrades, or as direct replacement parts for existing Square D QO electrical systems, ensuring a perfect fit and function.
$33.99
3

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

SIEMENS

Q220 20-Amp Double Pole Type QP Circuit Breaker

SIEMENS

$16.21

More Details
Main highlights
- Use for overload and short-circuit protection of your electrical system
- Siemens type QP circuit breakers provide easy plug-in connections in Siemens enclosures and the time saving insta-wire feature
- Double pole, 20 Amp, 240V type QP Circuit Breaker
- Compatible with Siemens PL and ES series load centers
- Accepts #14-8 AWG AI wire
- 10,000 AIC interrupting rating
$16.21
4
Best Value
43% Off

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

SIEMENS
43% Off

SIEMENS Q230 30-Amp Double Pole Type QP Circuit Breaker

SIEMENS

$16.73

$29.27
(43% Off)

More Details
Main highlights
- Use for overload and short-circuit protection of your electrical system
- Siemens type QP circuit breakers provide easy plug-in connections in Siemens enclosures and the time saving insta-wire feature
- Double pole, 30 Amp, 240V type QP Circuit Breaker
- Compatible with Siemens PL and ES series load centers
- 10,000 AIC interrupting rating
$16.73
$29.27 (43% Off)
5
13% Off

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Square D
13% Off

Square D HOM225 HomeLine Circuit Breaker, HOM-Type, 2-Pole, 120/240VAC, 25-Amp

Square D

$17.49

$20.20
(13% Off)

More Details
Main highlights
$17.49
$20.20 (13% Off)

Best magnetic circuit breakers - April 2026

Square D - Tandem mini Circuit Breaker, QO, 2 x 1 Pole at 20A, 120/240VAC, 10kA, Plug in Mount, Clam Pack - QO2020C

FalconSupply Genuine Square D QO120 QO 20 Amp Circuit Breaker Kit (2 Pack), Single Pole, 20A, 120V, 10kAIC, Plug-in for QO Load Centers & Panel Box, Visi-Trip, New Replacement

Q220 20-Amp Double Pole Type QP Circuit Breaker

SIEMENS Q230 30-Amp Double Pole Type QP Circuit Breaker

Square D HOM225 HomeLine Circuit Breaker, HOM-Type, 2-Pole, 120/240VAC, 25-Amp

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