Best Miniature Circuit Breakers of 2026

The Square D QO Tandem Mini Circuit Breaker is designed to protect against overloads and short-circuits. It is compatible only with QO panels that allow tandem breakers and can be easily installed through plug-in installation. The breaker trips thermally in case of overload and magnetically under a short circuit situation. Users are advised to contact their local building inspector for code adoptions and details regarding general NEC 2020 updates.

The Siemens Q2020 Circuit Breakers are designed for easy installation in Siemens load centers and meter combos, thanks to their plug-in design. This means you can quickly set them up without complicated wiring. They work well with Siemens PL and ES series load centers, so you have flexibility in choosing your system. These breakers protect your electrical setup from overloads and short circuits, keeping your home safe from electrical hazards. With a thermal-magnetic mechanism, they respond effectively to electrical issues, providing reliable and consistent protection for your circuits.

SIEMENS Q1515 Breaker is a space-saving circuit breaker designed for use in Siemens load centers and meter combinations that are rated to accept type QT breakers. This dual breaker features two single pole, 15 Amp 120-Volts interchangeable. It requires only half the space of 1-inch width circuit breakers, providing more room in your electrical panel. The manual means of energizing and de-energizing a circuit allows for easy control and safety. The SIEMENS Q1515 Breaker accepts #14-6 AWG Cu or #14-6 AWG Al wire, making it versatile for different wiring needs. With a 10k AIC series rating and HACR rating, it ensures reliable performance. It is CSA certified and UL Listed, guaranteeing its quality and safety.

The Sperry CS550A Finder helps you quickly identify the exact circuit breaker or fuse connected to a specific electrical line, saving you time and frustration. It’s designed to be safe around sensitive electronics, so you don’t have to worry about causing damage while using it. You can keep the power on during testing, which means no interruptions in your work or home activities. The device comes with a plug-in transmitter and an automatic receiver, making it easy to use and reliable in pinpointing circuits. Plus, both units give clear visual and audible signals, so you’ll always know when you’ve found the right breaker.

Chtaixi AC Miniature Circuit Breaker is a 2 pole DIN rail mount circuit breaker that provides protection against overload and short circuit damage for 110V 120V 220V 230V AC circuits. It is made of silver alloy contacts, flame retardant material shell, and has a color indicator. It can be used in solar AC systems, RV, home circuits, or other 50/60Hz AC systems. The breaker has a magnetic trip range of 5-10 times the rated current, and is easy to install with screw clamp wires and 35mm DIN rail mount.

The Square D HomeLine 30 amps Surge 2-Pole Circuit Breaker is a magnetic circuit breaker with a 2" size, 30 amp, 120/240 vac, non-interchangeable, and 10,000 AIR. It also features a switch indicator that provides convenience in monitoring the breaker status. This circuit breaker is useful for protecting your home's electrical system from overloads and short circuits.

The Pjerjzn Solar Disconnect is designed to make your solar power setup safer and easier. It features upgraded connectors that allow quick installation without worrying about wire types, saving you time and hassle. Made with high-quality materials, including a thick copper coil and a clear cover, it lets you easily check its status while ensuring durability. Its built-in protection guards your system from overvoltage, overload, and lightning, helping extend the life of your solar panels. Plus, with an IP65 waterproof rating, you can confidently install it outdoors, knowing it will withstand rain and dust. This makes the Pjerjzn Solar Disconnect a reliable choice for your solar power needs.

The Square D Two-Pole Breaker by Schneider Electric is designed to handle both 120 and 240 volts, making it versatile for various electrical setups in your home or workspace. With a 20-amp rating, it provides reliable protection for circuits that require moderate power, helping to prevent overloads and electrical hazards. The two-pole design means it can control two circuits simultaneously, which is ideal for appliances or systems that need a dual connection. Its snap-in feature allows for quick and easy installation, saving you time and effort during setup or replacement.

This DC Miniature Circuit Breaker is a 2 Pole 1000V 63 Amp Isolator designed for a Solar PV System. It is used to protect power distribution facilities from overload and short-circuit damage, and can also be used for control and isolation. The electromagnetic trip system can trip immediately when the circuit is short-circuited to protect the safety of the circuit. This DC mini circuit breaker has a magnetic system to assist arc extinguishing, making it suitable for use in DC power systems, ship electric power systems, solar photovoltaic systems, or other DC systems. The screw clamp wires and 35mm DIN rail mount make it easy to install.

The Square D Homeline Circuit Breaker is a 15-Amp, single-pole plug-on-neutral combination AFCI circuit breaker designed to help save customer's time and money. The innovative neutral connection design leads to fewer connections and faster installation, freeing up gutter space by eliminating the need for pigtails. The circuit breaker is compatible with Homeline series 4 and newer load centers and is rated for 120 VAC.