Magnetic circuit breakers: top picks

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AI-generated summary · updated September 12, 2026 · verify details before purchase.

1. 

   1 Best for Eaton panels Eaton

   Eaton CH Series 20 Amp 1-Pole Circuit Breaker CH120

   ★★★★★4.6/5 $15.00

   High-performance magnetic circuit breaker compatible with Eaton CH load centers, known for robust construction and positive switching.

   • Solid build
   • Positive switching
   • Widely compatible

   • Only for Eaton panels

   View on Amazon manufacturer site
2. 

   2 Best value SIEMENS

   Siemens Q120 20 Amp Single-Pole Type QP Circuit Breaker

   ★★★★☆4.5/5 $8.48

   Affordable and reliable magnetic circuit breaker for Siemens and compatible panels, offering standard protection with a good price-to-performance ratio.

   • Affordable
   • Good performance
   • Easy installation

   • Plastic housing feels less premium

   View on Amazon manufacturer site
3. 

   3 Best budget pick GE

   GE THQL1120 20 Amp 1-Pole Circuit Breaker

   ★★★★☆4.4/5 $10.29

   Economical magnetic circuit breaker for GE load centers, providing dependable overload and short-circuit protection at a low cost.

   • Very affordable
   • Dependable
   • Widely available

   • Basic design
   • Not for heavy-duty use

   View on Amazon manufacturer site
4. 

   4 Best for Murray panels Murrey Home

   Murray MP120 20 Amp Single-Pole Circuit Breaker

   ★★★★☆4.3/5 $15.16 Only 8 left

   Reliable magnetic circuit breaker specifically designed for Murray load centers, offering consistent performance and easy snap-in installation.

   • Snap-in design
   • Consistent trip
   • Good value

   • Limited to Murray panels

   View on Amazon manufacturer site
5. 

   5 Best for Homeline panels Schneider Electric

   Square D Homeline 20 Amp Single-Pole Circuit Breaker HOM120CP

   ★★★★★4.6/5 $13.00 Only 1 left

   Popular magnetic circuit breaker for Square D Homeline load centers, featuring a patented trip mechanism and high short-circuit current rating.

   • Patented trip
   • High SCCR
   • Easy to install

   • Only for Homeline panels

   View on Amazon manufacturer site
6. 

   6 Best for BR panels CUTLER HAMMER

   Eaton BR 20 Amp 1-Pole Circuit Breaker BR120

   ★★★★☆4.5/5 $12.95 Only 2 left

   Versatile magnetic circuit breaker for Eaton BR and Westinghouse style panels, known for its compact size and reliable protection.

   • Compact size
   • Versatile compatibility
   • Reliable

   • Some reports of false trips

   View on Amazon manufacturer site
7. 

   7 Best for obsolete panels Connecticut Electric

   Connecticut Electric VPKUBIP 20 Amp Single-Pole Circuit Breaker

   ★★★★☆4.2/5 $89.55 Only 9 left

   Aftermarket magnetic circuit breaker designed to fit obsolete load centers like Pushmatic, providing a solution for older electrical systems.

   • Fits obsolete panels
   • Lifesaver for old homes
   • Decent quality

   • Aftermarket brand
   • Higher price

   View on Amazon
8. 

   8 Best overall Square D

   Square D QO 20 Amp Single-Pole Bolt-On Circuit Breaker QO120CP

   ★★★★★4.7/5 $11.49 Currently unavailable

   High-quality magnetic-trip circuit breaker from a trusted brand, ideal for residential load centers, with excellent durability and reliable protection.

   • Trusted brand
   • Reliable magnetic trip
   • Easy to install

   • Limited amp options for some

   View on Amazon manufacturer site

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