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The 8 Best miniature circuit breakers of 2024

Are you trying to find miniature circuit breakers among various brands on the market but aren’t sure where to begin? To assist you in finding the right one, we’ve put together a list of the 7 best to help you pick the perfect one!

We investigated and evaluated a number of the top-selling miniature circuit breakers on the market in order to create our list of the best. Making a decision among the many options available is never simple. There are an infinite number of models available, each with a distinct price. And as you’ll find out, the best options aren’t usually the ones you imagine! This comparison is rich and relevant because of the numerous factors that were employed. You will find products featured in this ranking not only based on their pricing but also on their features and other customers reviews. To write this review, we completed 30 hours of research and did 21 miniature circuit breakers tests. You won’t need to pick products at random any more. If you’re unsure of what to look for, browse our list and consult the buying guide!

An overview of our top picks

Table of contents

The best miniature circuit breakers you can buy today

SaleNo. 1
DC Miniature Circuit Breaker, 2 Pole 1000V 40 Amp Isolator for Solar PV System, Thermal Magnetic Trip, DIN Rail Mount, Chtaixi DC Disconnect Switch C40
  • FUNCTIONS: Used to protect power distribution facilities from overload and short-circuit damage, and can also be used for control and isolation.
  • FAST TRIP: The electromagnetic trip system can trip immediately when the circuit is short-circuited to protect the safety of the circuit.
  • ARC EXTINGUISHING: DC arc extinguishing is more difficult than AC. This DC mini circuit breaker has a magnetic system to assist arc extinguishing.
  • APPLICATION: Used in DC power system, ship electric power system, solar photovoltaic system, or other DC system.
  • INSTALLATION: Screw clamp wires, 35mm DIN rail mount.
No. 2
DC Miniature Circuit Breaker, 2 Pole 500V 20 Amp Isolator for Solar PV System, Thermal Magnetic Trip, DIN Rail Mount, Chtaixi DC Disconnect Switch C20
  • FUNCTIONS: Used to protect power distribution facilities from overload and short-circuit damage, and can also be used for control and isolation.
  • FAST TRIP: The electromagnetic trip system can trip immediately when the circuit is short-circuited to protect the safety of the circuit.
  • ARC EXTINGUISHING: DC arc extinguishing is more difficult than AC. This DC mini circuit breaker has a magnetic system to assist arc extinguishing.
  • APPLICATION: Used in DC power system, ship electric power system, solar photovoltaic system, or other DC system.
  • INSTALLATION: Screw clamp wires, 35mm DIN rail mount.
No. 3
Westinghouse Miniature Circuit Breaker, 40A, Two Pole, C Curve, UL 489 Certified
4 Consomer Reviews
Westinghouse Miniature Circuit Breaker, 40A, Two Pole, C Curve, UL 489 Certified
  • UL489 CERTIFIED: Meets National Electrical Code standards to serve as primary thermal overload and short circuit protection. Approved by Underwriters Laboratories for Branch Circuit Protection in US and Canada. UL File No. E517928.
  • STANDARD INSTALLATION: Mini circuit breaker snaps on 35mm DIN rails or may be directly mounted to control panels. Typically used in branch circuit applications including motor control circuits, HVAC / HVACR equipment, and various OEM equipment.
  • SPECIFICATIONS: 1 Pack, 40 Amp / 2-Pole / C Curve MCB; rated for 10kAIC 480Y/277V AC with a direct current rating of 125V DC (60V DC per pole). Westinghouse Model No. WMBB2C40.
  • CURRENT LIMITING: Westinghouse MCBs are designed to interrupt within the first half of the AC cycle compared to 1 to 2 AC cycles for conventional breakers.
  • WHAT'S INCLUDED: (1) Two pole miniature circuit breaker only. DIN rail and installation kit sold separately.
No. 4
ZGLEDUN Miniature Circuit Breaker - AC Mini Home Circuit Breaker 120V/240V DZ47-63 Din Rail Mount 1P 20A
290 Consomer Reviews
ZGLEDUN Miniature Circuit Breaker - AC Mini Home Circuit Breaker 120V/240V DZ47-63 Din Rail Mount 1P 20A
  • Model: DZ47-63; Rated Current: 20A; Rated Voltage: 110V; For AC 50Hz/60Hz; 1 Pole.
  • Size: 2.6"x 3.1"x 0.7"/ 67 x78 x 18mm (L*W*H). Fit for 35mm DIN rail.
  • Function: High quality AC mini circuit used for line overload, short circuit protection and infrequent conversion of lines. It can also work as on-off switch for load circuits.
  • Easy Installation: Modular sturcture, can be easily installed on the DIN standard guide rail in distribution box, bistable locking clip.
  • Applications: DZ47-63 series miniature circuit breaker is mainly used for the illumination of office buildings and residential buildings. It is used for distribution and protection the facilities from damages caused by overload and short-circuit.
No. 5
Chtaixi AC Miniature Circuit Breaker, 20 Amp 120V/240V 2 Pole DIN Rail Mount Circuit Breaker, Thermal Magnetic Trip, Solar AC Disconnect Switch MCB C20
333 Consomer Reviews
Chtaixi AC Miniature Circuit Breaker, 20 Amp 120V/240V 2 Pole DIN Rail Mount Circuit Breaker, Thermal Magnetic Trip, Solar AC Disconnect Switch MCB C20
  • FUNCTIONS: Used to protect 110V 120V 220V 230V AC circuit from overload and short circuit damage, and can also be used for control and isolation.
  • CURVE C: Magnetic trip range 5-10 times rated current.
  • QUALITY: Silver alloy contacts, flame retardant material shell, color indicator.
  • APPLICATION: Can be used in solar ac systems, RV, home circuits, or other 50/60Hz AC systems.
  • INSTALLATION: Screw clamp wires, 35mm DIN rail mount.
SaleNo. 6
smseace Miniature Circuit Breaker Low Voltage AC 6A 230/400V, 1 Pole AC Disconnect Switch C6 DIN Rail Mount Used to Protect Circuit Equipment
  • Product: Miniature circuit breaker,DZ47-63 miniature circuit breaker, used in 220V branch circuit, is used to protect electrical circuit equipment in houses and buildings.
  • Model: DZ47-63; Number of stages: single pole; For AC 50 Hz or 60 Hz;rated current: 6A; rated voltage: 230V.Size: 3.1"x 0.7"x 2.8"/ 79 x18 x 71mm (L*W*H).
  • Single air switch, single in and single out, only connected to the live wire and not the neutral wire.
  • Material: PC plastic.Beautiful and exquisite appearance, high breaking capacity, quick disconnection, guide rail installation, long service life, high performance and light weight.
  • Function: used for line overload, short circuit protection and infrequent conversion of lines.Usually the circuit breaker is installed vertically, and the inclination of the vertical plane does not exceed ±5°
No. 7
Westinghouse Miniature Circuit Breaker, 10A Single Pole, C Curve, UL 489 Certified
  • UL489 CERTIFIED: Meets National Electrical Code standards to serve as primary thermal overload and short circuit protection. Approved by Underwriters Laboratories for Branch Circuit Protection in US and Canada. UL File No. E517928.
  • STANDARD INSTALLATION: Mini circuit breaker snaps on 35mm DIN rails or may be directly mounted to control panels. Typically used in motor control circuits, HVAC / HVACR equipment, input-output module protection for programmable logical controllers (PLC) and distributed control systems (DCS), relays and instrumentation - among other applications.
  • SPECIFICATIONS: 1 Pack, 10 Amp / 1-Pole / C Curve MCB; rated for 10kAIC 277V AC with a direct current rating of 60V DC. Westinghouse Model No. WMBB1C10.
  • CURRENT LIMITING: Westinghouse MCBs are designed to interrupt within the first half of the AC cycle compared to 1 to 2 AC cycles for conventional breakers.
  • WHAT'S INCLUDED: (1) Single pole miniature circuit breaker only. DIN rail and installation kit sold separately.
No. 8
Chtaixi 3 Pack 1 Pole Miniature Circuit Breaker, 20 Amp 120V/240V AC DIN Rail Mount Circuit Breaker, Thermal Magnetic Trip MCB C20
  • FUNCTIONS: Used to protect 110V 120V 220V 230V AC circuit from overload and short circuit damage, and can also be used for control and isolation.
  • CURVE C: Magnetic trip range 5-10 times rated current.
  • QUALITY: Silver alloy contacts, flame retardant material shell, color indicator.
  • APPLICATION: Can be used in solar ac systems, RV, home circuits, or other 50/60Hz AC systems.
  • INSTALLATION: Screw clamp wires, 35mm DIN rail mount.
No. 9
Chtaixi 3 Pole DIN Rail Mount Circuit Breaker, 63 Amp 480V AC Miniature Circuit Breaker, Thermal Magnetic Trip AC Disconnect Switch MCB C63
  • FUNCTIONS: Used to protect 480V AC circuit from overload and short circuit damage, and can also be used for control and isolation.
  • CURVE C: Magnetic trip range 5-10 times rated current.
  • QUALITY: Silver alloy contacts, flame retardant material shell, color indicator.
  • APPLICATION: Can be used in 3 phase high power circuit or other 50/60Hz AC systems.
  • INSTALLATION: Screw clamp wires, 35mm DIN rail mount.
No. 10
Chtaixi AC Miniature Circuit Breaker, 6 Amp 120V/240V 1 Pole DIN Rail Mount Circuit Breaker, Thermal Magnetic Trip, Solar AC Disconnect Switch MCB C6
  • FUNCTIONS: Used to protect 110V 120V 220V 230V AC circuit from overload and short circuit damage, and can also be used for control and isolation.
  • CURVE C: Magnetic trip range 5-10 times rated current.
  • QUALITY: Silver alloy contacts, flame retardant material shell, color indicator.
  • APPLICATION: Can be used in solar ac systems, RV, home circuits, or other 50/60Hz AC systems.
  • INSTALLATION: Screw clamp wires, 35mm DIN rail mount.
SaleNo. 11
Square D - Tandem Mini Circuit Breaker, QO, 2 x 1 Pole at 20A, 120/240VAC, 10kA, Plug in Mount, Clam Pack - QO2020C
324 Consomer Reviews
Square D - Tandem Mini Circuit Breaker, QO, 2 x 1 Pole at 20A, 120/240VAC, 10kA, Plug in Mount, Clam Pack - QO2020C
  • 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
  • Trip thermally (in an overload situation) or magnetically (under a short circuit situation)
  • Plug-in installation
No. 12
12V-110V DC Miniature Circuit Breaker, 6 Amp 1 Pole Battery Breaker Protector for Solar PV System and RV, Thermal Magnetic Trip, DIN-Rail/Surface Mount, Chtaixi DC Disconnect Switch B6
  • FUNCTIONS: Used to protect 12V 24V 36V 48V 60V 100V DC circuit from overload and short circuit damage, and can also be used for control and isolation.
  • ARC EXTINGUISHING: This DC mini circuit breaker has a magnetic system to assist arc extinguishing.
  • CURVE B: Magnetic trip range 4-7 times rated current.
  • APPLICATION: Used in battery power systems, solar photovoltaic systems, RV, electric moped, or other DC systems.
  • INSTALLATION: Screw clamps wire or M5 wire lug (size fits), 35 mm DIN rail mount or surface mount.
No. 13
Chtaixi DC Miniature Circuit Breaker, 2 Pole 500V 80 Amp Isolator for Solar PV System, Thermal Magnetic Trip, DIN Rail Mount, High Current DC Disconnect Switch MCB 2P C80
  • FUNCTIONS: Used to protect power distribution facilities from overload and short-circuit damage, and can also be used for control and isolation.
  • ARC EXTINGUISHING: This DC circuit breaker has a magnetic system to assist arc extinguishing.
  • QUALITY: Silver alloy contacts, flame retardant material shell, color indicator.
  • APPLICATION: Used in solar photovoltaic system, or other DC system.
  • INSTALLATION: Screw clamp wires, 35mm DIN rail mount.
No. 14
Breaker Box Circuit Breaker Distribution Box, Outdoor Waterproof with DIN Rail, Power Distribution Protection Box for Miniature Circuit Breaker, Electrical Box for Indoor Wall(HT-5WAY)
24 Consomer Reviews
Breaker Box Circuit Breaker Distribution Box, Outdoor Waterproof with DIN Rail, Power Distribution Protection Box for Miniature Circuit Breaker, Electrical Box for Indoor Wall(HT-5WAY)
  • The small breaker box is designed to neatly arrange your circuit breakers and junctions in a compact and organized manner.
  • IP65 GRADE: Circuit breaker box with waterproof & weather designed, effectively block splashing water, rain, dust, snow, oil, UV, etc, effectively protecting the circuit breaker.Impact resistance up to IK08.
  • Easy installation: Includes Din Rail and terminal, easy to install MCB; Knock-out holes for cable enter and out; Can be installed directly on the wall without slotting.
  • Wide range of use, suitable for installation indoors, widely used in homes, workshops, hotels, shopping malls, PCB BOX, ads distribution box, unloading terminal equipment, sewage treatment facilities, communication engineering, power stations, etc.
  • Safeguard your electrical system with the included din rail breaker box that automatically cut off power in case of overloads or short circuits, preventing any potential damage.
No. 15
DIHOOL 60 Amp Circuit Breaker Box, PV Solar Disconnect Switch, DC 400V DIN Rail Circuit Breaker
109 Consomer Reviews
DIHOOL 60 Amp Circuit Breaker Box, PV Solar Disconnect Switch, DC 400V DIN Rail Circuit Breaker
  • 60 Amp AC/ DC Breaker, No Polarity, IP65 Waterproof Box
  • Rated Voltage: DC 12-400V Protect - And + Pole or AC 90~400V Protect L And N Pole
  • Adapter Cable: 6-8.7MM Diameter Cable, 7-5 AWG Cable
  • With IP65 waterproof and easy to install, the transparent cover also make it easy to check the status of the circuit breaker.
  • The Breaker Box is suitable for photovoltaic solar panel grid-connected system and solar off-grid system solar power generation system. PV array. RV solar
No. 16
Chtaixi AC Miniature Circuit Breaker, 100 Amp 120V/240V 2 Pole DIN Rail Mount Circuit Breaker, Thermal Magnetic Trip, Solar AC Disconnect Switch MCB 2P C100
  • FUNCTIONS: Used to protect 110V 120V 220V 230V AC circuit from overload and short circuit damage, and can also be used for control and isolation.
  • CURVE C: Magnetic trip range 5-10 times rated current.
  • QUALITY: Silver alloy contacts, flame retardant material shell, color indicator.
  • APPLICATION: Can be used in solar ac systems, RV, home circuits, or other 50/60Hz AC systems.
  • INSTALLATION: Screw clamp wires, 35mm DIN rail mount.
No. 17
Glarks 30Pcs 5A 10A 15A 20A 30A Circuit Breakers Thermal Overload Protector Switch with Manual Reset 32VDC, AC125-250V With Quick Connect Female Spade Terminal and Waterproof Button Caps
  • ♛ [What You Get]: This kit includes 10pcs 5A, 10A, 15A, 20A and 25A overload protector switch with waterproof caps. 20pcs male female spade terminal, 30pcs in total. Multiple models of circuit breaker can solve the needs in different situations.
  • ♛ [Good Reliability]: Our products can work normally under up to 32V AC and 250V DC. After power off, you can use the button to manually restore and reset. The compact design provides you with a high-density circuit protection configuration.
  • ♛ [Easy to Installation]: The overload protector needs to be installed in a 3/8 inch round hole. If you plan to use it to replace the aging circuit breakers, you can install it without modification. Please test before installation.
  • ♛ [Safety Protection]: Push-to-reset operation with black manual reset button, come with a waterproof button cap to protect from bad weather. It can provide effective protection for the electrical system, squirrel cage motor, winding motor over current, short circuit, phase loss, phase imbalance, phase error and starting process.
  • ♛ [Widely Application]: Overload protectors are widely used in the protection and monitoring of industrial electrical appliances in the machinery, metallurgy, building materials, chemical, and textile industries.
No. 18
100A, 480V AC, 60V DC, 3 Pole, DIN Rail Mount Miniature Circuit Breaker, Trip Curve: C, UL1077
9 Consomer Reviews
100A, 480V AC, 60V DC, 3 Pole, DIN Rail Mount Miniature Circuit Breaker, Trip Curve: C, UL1077
  • Package Dimensions: 3.0 H x 4.0 L x 3.0 W (inches)
  • Visual trip indication, Easy to wire screw clamp connections
  • Package Weight: 1.0 pounds
  • Country of Origin : China
No. 19
smseace DC Miniature Circuit Breaker, 63A 2P 500V Low Voltage DIN Rail Mounted Miniature Air Circuit Breaker, Suitable for Solar Panels Grid System.FCY8-63-C63-2P
  • Product name: DC circuit breaker( 63A)
  • Specifications: Rated current: 63A; Rated voltage is 90-500v; Breaking capacity is 6KA; Number of levels: 2 poles.
  • Used for line overload and short circuit protection; simple and convenient to use.
  • Fast closing to ensure load operation and prolong service life.
  • Application: dc circuit breakers are used in solar panel grid systems, solar and wind hybrid systems, etc.
No. 20
DIHOOL Smart Miniature Circuit Breaker with Adjustable Current 1~63 Amp, AC 120V Current Limit Quick Disconnect with Overvoltage and Undervoltage Protection
5 Consomer Reviews
DIHOOL Smart Miniature Circuit Breaker with Adjustable Current 1~63 Amp, AC 120V Current Limit Quick Disconnect with Overvoltage and Undervoltage Protection
  • Adjustable overvoltage value, adjustable undervoltage value, adjustable overcurrent value, and adjustable recovery time
  • Default value Overvoltage Trip Value: 140V; Undervoltage Trip Value: 90V;Overcurrent Trip Value: 63A
  • Wait for 5 seconds after powering on, and if overvoltage/undervoltage/overcurrent occurs, wait for 30 seconds to restore the circuit
  • Before use, please carefully review the user manual and adjust the overvoltage/undervoltage/current protection values according to your own needs
  • There are setting instructions on the side of the product. If the manual is missing, you can view it through the side view

How to choose a good miniature circuit breakers

Does the idea of finding a fantastic miniature circuit breakers make you anxious? When it comes to purchasing this product, specifically when deciding which model to select, has your head been spinning between options? You are not alone if that is the case. We are aware of the pressure involved in the purchasing process!

Your presence here indicates that you are interested in miniature circuit breakers. Before choosing which product would be the best for your needs after being inundated with information, locate a reliable source with genuine selections. You can get that information from a variety of sources, including buying guides and rating websites, word-of-mouth recommendations from friends and family, online discussion forums where users can share their own experiences, product reviews that can be found all over the internet, and YouTube channels. You can only get the right product through exhaustive analysis. But you realize that’s not always simple. In order to ease your concerns, we have taken the time to develop a list of the top miniature circuit breakers products available right now. You might be wondering how we came up with the list. How was this buying guide developed?

First, we used our algorithms to gather as much reliable data as we could about these products. To verify all the data gathered, we used both artificial intelligence and a lot of algorithms.
Then, our experts used criteria that are recognized in the business to evaluate them according to their quality to price ratio, allowing us to choose the top miniature circuit breakers on the market right now!

The selection of the goods is not arbitrary. Before creating a list, we take into account a number of factors. Below are some of the criteria discussed:

Brand Value: What happens if you choose a dubious brand just because it appears to be a good deal? So the likelihood of receiving a product with a short shelf life increases. That is due to the fact that well-known brands have a reputation to uphold, while others do not. Top miniature circuit breakers brands strive to provide some distinctive traits that set them apart from the competition. So, hopefully one or more of the items on our list will be perfect for you.

Features: Useful features are all you need, not tons of them. We consider the important aspects and select the top miniature circuit breakers based on those.

Specifications: Numbers always help you measure the quality of a product in a quantitative way. We try to find products with higher specifications, but with the right balance.

Quality: A product’s quality may always be quantified with the aid of numbers. We look for goods with better standards that strike the proper balance. The best quality product that gets highly appreciated and recommended by experienced users.

Customer ratings:  Would it be accurate to suggest that the miniature circuit breakers were used by hundreds of customers before you? Superior ratings indicate that many customers had better service.

Customer Reviews: Like ratings,  provide you with accurate and reliable information about the product from genuine customers. Customer ratings are very important to all of us because they contain accurate and reliable information about the customer service we received from several hundred customers.

Seller Rank: This is very intriguing! Not only do you need a good miniature circuit breakers, you also need a product with rising sales that is trendy. It accomplishes two goals. First, the expanding user base proves the quality of the product. Second, given that number, producers must be able to offer greater quality and after-sales support.

Value: You get what you pay for, they say, so consider the value. Cheap isn’t always good and expensive isn’t always bad. However, that does not imply that spending a lot of money on a product that is flashy but underwhelming is a good idea. Before adding them to the list, we make an effort to evaluate how much value you can get for your money from your miniature circuit breakers.

Durability: Durability and reliability are closely related concepts. You will benefit from a strong and long-lasting miniature circuit breakers for months and years to come.

Product availability: Products come and go, and new ones replace the old ones. Most likely, a few new features and required changes were made. What use is it to use a supposedly good product if the maker no longer supports it? We make an effort to highlight products that are current and offered by one or more trustworthy sellers, if not more.

Negative Reviews: Yes, we do take that into account as well! The goods with the majority of bad reviews are filtered out and disregarded when we choose the best-rated one on the market.

These are the standards by which we selected our miniature circuit breakers. Do we end our process there? Hell no. The most crucial fact about us that you should be aware of is that we regularly update our website with current and pertinent information. We have one more layer of filtration since we place the greatest importance on reader satisfaction. Please let us know if any product included here is incorrect, irrelevant, subpar, or simply out of date. We always value your opinions, and we’ll work hard to make any necessary corrections to our list in response to them.

Why should you believe us?

There are now thousands of possibilities for these products on Amazon, but choosing the best one can be difficult and time-consuming. And what miniature circuit breakers should you purchase in 2022?

This guide is the result of more than 10 years of experience in researching, testing and writing about many topics. Each member of our team is an authority in their area. We read every article we could find online and every consumer review on every retail website for seven hours. Additionally, we discovered a ton of websites that offered helpful resources, including buying tips and thorough information on miniature circuit breakers.