Best Bolt-On Miniature Circuit Breakers of 2026

Harry Stack Avatar
Harry Stack
Last Updated: Jan 9, 2026

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Bolt-On Miniature Circuit Breakers are an essential component for any electrical system. These breakers are designed to protect against overloading and short circuits, preventing damage to the electrical system and potential electrical hazards. They are easy to install with a bolt-on design, making them a popular choice for both residential and commercial applications. These circuit breakers are available in a variety of sizes and amperage ratings, ensuring compatibility with a wide range of electrical systems. Bolt-On Miniature Circuit Breakers are a reliable and cost-effective solution for protecting electrical systems against potential hazards.

At a Glance: Our Top Picks

GE THQB2130 2P30A 120/240 BLT-ON CB Cover #TOP 1
GE THQB2130 2P30A 120/240 BLT-ON CB
ftb score rating icon 9.9
Square D QOB120 Bolt On Circuit Breaker Cover #TOP 2
Square D QOB120 Bolt On Circuit Breaker
ftb score rating icon 9.8
GE THQB1130 30A Miniature Circuit Breaker Cover #TOP 3
GE THQB1130 30A Miniature Circuit Breaker
ftb score rating icon 9.6

Top 10 Bolt-On Miniature Circuit Breakers

#TOP 1

GE THQB2130 2P30A 120/240 BLT-ON CB

GE
GETHQB2130
Black
General Electric
GE THQB2130 2P30A 120/240 BLT-ON CB Cover
ABB TEY/Q-Line® THQB2130 2-Pole Miniature Circuit Breaker • 30A Double Pole Breaker • 120/240 VAC, 10 kA Interrupt • Thermal Magnetic Trip • Bolt-On Installation • HACR Rated

The GE THQB2130 Circuit Breaker is a high-quality miniature circuit breaker designed by GE. With a capacity of 2P30A and a voltage rating of 120/240, this circuit breaker is perfect for various applications. The first feature of this circuit breaker is its compact size, which makes it easy to install in tight spaces. This feature ensures that you can conveniently fit it in any electrical panel without any hassle. The second feature is its reliable performance, guaranteeing the protection of your electrical system. With this circuit breaker, you can have peace of mind knowing that your electrical devices are safe from any potential damage. The third feature is its quick trip mechanism, which ensures that the circuit breaker trips instantly in case of any overload or short circuit, preventing any further damage. Lastly, this circuit breaker is built to last, thanks to its high-quality materials and construction. With its durable design, it can withstand years of use without any issues. Overall, the GE THQB2130 Circuit Breaker is a reliable and efficient choice for your electrical system, providing convenience, safety, and durability.

What We Like
Compact Size
Reliable Performance
Quick Trip Mechanism
#TOP 2

Square D QOB120 Bolt On Circuit Breaker

1H824
Black
Square D QOB120 Bolt On Circuit Breaker Cover
Square D QOB120 Bolt On Circuit Breaker, 20A, 1 Pole, Qob

The Square D Bolt On Circuit Breaker is a 1-pole circuit breaker that operates at 120/240V and has a 10kA capacity. As a miniature circuit breaker, it provides reliable protection for your electrical system. With a 20-amp rating, it is suitable for various applications and can handle both 120V and 240V loads. The compact design of this circuit breaker allows for easy installation and saves space in your electrical panel. It is a durable and high-quality product from the trusted brand Square D, ensuring the safety and efficiency of your electrical system.

What We Like
1-pole
120/240V
10kA capacity
Miniature circuit breaker
#TOP 3

GE THQB1130 30A Miniature Circuit Breaker

GE
GETHQB1130
Black
GE THQB1130 30A Miniature Circuit Breaker Cover
ABB TEY/Q-Line® THQB1130 Miniature Circuit Breaker • 30A Single Pole Breaker • 120/240 VAC, 10 kA Interrupt • Thermal Magnetic Trip • Bolt-On Installation • HID Compatible

The GE 30A Single Pole Breaker is designed to keep your home or business safe by protecting against electrical overloads and short circuits. Its 30-amp rating and quick response system help prevent damage by swiftly cutting power when needed. The bolt-on installation ensures the breaker stays firmly in place, giving you confidence in its reliability. Additionally, the visible trip indicator makes it easy for you to spot when the breaker has been triggered, simplifying maintenance and troubleshooting. This breaker combines safety, stability, and ease of use for your electrical system.

What We Like
Reliable overcurrent protection
Secure bolt-on mounting
Fast-acting trip mechanism
Visible trip indicator
#TOP 4

GE THQB2140 Bolt-On Mount Type THQB Miniature Circuit Breaker

GE
THQB2140
COLOR
GE THQB2140 Bolt-On Mount Type THQB Miniature Circuit Breaker Cover
ABB TEY/Q-Line® THQB2140 2-Pole Miniature Circuit Breaker • 40A Double Pole Breaker • 120/240 VAC, 10 kA Interrupt • Thermal Magnetic Trip • Bolt-On Installation • HACR Rated

This miniature circuit breaker is a compact and reliable device that can interrupt electrical currents in case of overload or short circuit. It has a 2-pole configuration with a continuous current rating of 40 amps and 120/240V AC voltage. The LI trip function, EB GO schedule, and HACR special markings make it suitable for various applications. The circuit breaker features an internal common trip and can be reverse fed. It is made in China and has a model number of THQB2140. The item package dimension is 8.636" L x 9.906" W x 5.08" H.

What We Like
Compact and reliable device
2-pole configuration with 40 amp continuous current rating
LI trip function, EB GO schedule, and HACR special markings for versatile applications
#TOP 5

GE THQB1120 Miniature Circuit Breaker

ABB
THQB1120
COLOR
GE Industrial
GE THQB1120 Miniature Circuit Breaker Cover
ABB TEY/Q-Line® THQB1120 Miniature Circuit Breaker • 20A Single Pole Breaker • 120/240 VAC, 10 kA Interrupt • Thermal Magnetic Trip • Bolt-On Installation • HACR & SWD Rated

This miniature circuit breaker is made in China and has a model number of THQB1120. It is a 1-pole 20 amp 120/240 volt AC bolt-on mount type circuit breaker. The item package dimension is 17.272" L x 9.652" W x 3.048" H and it weighs 0.3 lb. It is categorized as a miniature circuit breaker.

What We Like
Compact size
Easy to install with bolt-on mount type
Can handle up to 20 amps of current
#TOP 6

GE THQB32020 Bolt-On Mount Type THQB Miniature Circuit Breaker

GE
THQB32020
COLOR
GE THQB32020 Bolt-On Mount Type THQB Miniature Circuit Breaker Cover
ABB TEY/Q-Line® THQB32020 3-Pole Miniature Circuit Breaker • 20A Triple Pole Breaker • 120/240 VAC, 10 kA Interrupt Thermal Magnetic Trip • Bolt-On Installation • Residential & Commercial Use

This miniature circuit breaker is made in China and has a model number of THQB32020. It is a 3-pole 20 amp 240 volt AC breaker that can be bolted on. The item package dimension is 10.16" L x 9.652" W x 8.128" H and it weighs 0.85 lb. It belongs to the category of miniature circuit breakers.

What We Like
Easy to install with bolt-on mount type
Compact size and lightweight design
Suitable for 240 volt AC circuits
#TOP 7

Eaton Cutler-Hammer C-H BAB1020

CHBAB1020
Black
Eaton Cutler-Hammer C-H BAB1020 Cover
Eaton Cutler-Hammer C-H BAB1020; 20A QCKLAG Bolt ON 1P 120/2, Black

The Eaton Cutler-Hammer C-H BAB1020 is a miniature circuit breaker that offers reliable protection for your electrical system. With its quick-lag bolt-on feature, this 1P 120/2 breaker is easy to install and provides a secure connection. The 20A rating ensures that it can handle the electrical load without tripping. This breaker is designed to be compact, making it ideal for applications where space is limited. The Eaton Cutler-Hammer C-H BAB1020 is a trusted choice for residential and commercial use, providing convenience and peace of mind.

What We Like
Reliable protection
Easy installation
Compact design
#TOP 8

Eaton Cutler-Hammer CHBAB2030 Circuit Breaker

CHBAB2030
Black
Eaton Cutler-Hammer CHBAB2030 Circuit Breaker Cover
C-H BAB2030; 30A QCKLAG BOLT ON 2P 120/2

The Eaton Cutler-Hammer CHBAB2030 is a magnetic circuit breaker with a 30A QCKLAG BOLT ON 2P 120/2 attribute. This circuit breaker is designed to protect electrical circuits from damage caused by overloads and short circuits. It is easy to install and can be bolted on to the electrical panel. The CHBAB2030 is a reliable and efficient circuit breaker that ensures the safety of your electrical system.

What We Like
Easy to install
Protects electrical circuits from overload and short circuit damage
Reliable and efficient
#TOP 9

CUTLER HAMMER BAB2040 40A Circuit Breaker

CHBAB2040
Black
CUTLER HAMMER BAB2040 40A Circuit Breaker Cover
C-H BAB2040; 40A QCKLAG BOLT ON 2P 120/2

The CUTLER HAMMER 40A Breaker is a reliable miniature circuit breaker designed to protect your electrical circuits. With a 40-amp rating, it handles substantial electrical loads, making it suitable for various applications. The bolt-on design ensures a secure and straightforward installation, saving you time and effort. Its two-pole configuration provides enhanced protection by simultaneously interrupting both hot wires, which is ideal for 240V systems. This breaker is part of the trusted CUTLER HAMMER brand, known for durability and safety, giving you peace of mind in your electrical setup.

What We Like
40-amp capacity
Bolt-on installation
Two-pole protection
Reliable brand
#TOP 10

Square D QOB220 Circuit Breaker

Square D QOB220 Circuit Breaker Cover
Square D QOB220 Bolt On Circuit Breaker 2P 20 Amp 120/240Vac/48Vdc

The Square D Circuit Breaker is a reliable miniature circuit breaker designed for 120/240V applications with a 20 Amp capacity. This new surplus model ensures excellent performance, protecting your electrical systems from overloads and short circuits. You can count on this device to enhance safety in your home or business by automatically shutting off power during faults. Its compact design allows for easy installation, making it a convenient choice for various electrical setups. With this circuit breaker, you'll enjoy peace of mind knowing your electrical systems are well-protected.

What We Like
Reliable overload protection
Easy installation
Compact design
20 Amp capacity
Buying Guide Image

Frequently Asked Questions (FAQs)

1. What is a BAB breaker?

Eaton's bolt-on miniature circuit breakers (Quicklag) provide superior protection in panelboards, and offer easy installation. They are also switching duty rated for 120 VAC fluorescent light applications, and UL 489 listed. All products 15–100A are HACR rated.

2. What is a type BA circuit breaker?

Type B circuit breakers are designed to trip if the current flowing through hits between three and five times the recommended maximum or 'rated load'. This is the most sensitive type of MCB, designed for domestic applications, and low voltage commercial settings where any current surges are likely to be small.

3. Do they make mini GFCI breakers?

QOB120GFI SQUARE D Circuit Breaker Miniature Circuit Breaker (QOB-GFI) Ground Fault Protecting (Class A 6mA), 20A BOLT-IN.

Editor's Notes

During our bolt-on miniature circuit breaker research, we found 24 bolt-on miniature circuit breaker products and shortlisted 10 quality products. We collected and analyzed 2,967 customer reviews through our big data system to write the bolt-on miniature circuit breakers list. We found that most customers choose bolt-on miniature circuit breakers with an average price of $14.56.

The bolt-on miniature circuit breakers are available for purchase. We have researched hundreds of brands and picked the top brands of bolt-on miniature circuit breakers, including GE, Square D, ABB, CUTLER HAMMER, Schneider Electric. The seller of top 1 product has received honest feedback from 384 consumers with an average rating of 4.7.

Written by
Harry Stack Avatar

Harry Stack owns a small hardware store, his career landed him a depth of knowledge in categories such as tools, equipment, machinery and hardware. In his spare time, he usually repairs furniture, safes and appliances, and he knows how to make simple repairs to plumbing or electrical fixtures. His hobbies also include woodworking and fishing.