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The 8 Best thermal magnetic circuit breakers of 2024

Are you trying to find thermal magnetic 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 thermal magnetic 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 18 hours of research and did 36 thermal magnetic 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 thermal magnetic 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
Chtaixi 3 Pole DIN Rail Mount Circuit Breaker, 20 Amp 240V AC Miniature Circuit Breaker, Thermal Magnetic Trip AC Disconnect Switch MCB C20
  • FUNCTIONS: Used to protect 240V 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 circuit or other 50/60Hz AC systems.
  • INSTALLATION: Screw clamp wires, 35mm DIN rail mount.
No. 4
DC Miniature Circuit Breaker, 2 Pole 500V 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.
SaleNo. 6
Leviton LB120-DFT 20A 1-Pole Plug-On AFCI/GFCI Branch Circuit Breaker, Thermal Magnetic, 120 VAC, White
  • EASY - Leviton's revolutionary design allows the entire Load Center to be wired at rough-in without any circuit breakers present.
  • SAFE - Leviton GFCI, AFCI and dual-function circuit breakers feature patented reset lockout technology, and will not reset if ground or arc fault protection is comprimised.
  • INTUITIVE - LEDs communicate trip condition and type of fault, and remain illuminated even when tripped.
  • COMFORTABLE - Rocker-style switches require less activation force than traditional circuit breakers.
SaleNo. 7
40 Amp 2 Pole Type QP Circuit Breaker Plug-in Mount Standard Miniature Circuit Breaker Thermal Magnetic Protection, 10KA 120/240V, Fit for Home, Commercial and Light Industrial installations(2P 40A)
  • This device is designed to protect electrical circuits from damage caused by overloading or short circuits. When a fault occurs, the circuit breaker automatically cuts off the flow of electricity, preventing potential hazards and equipment damage.
  • Thermal magnetic protection mechanism uses a powerful magnetic force to trip the breaker quickly in response to a short-circuit. This helps prevent further damage to the system and ensures the safety of occupants and property.
  • Magnetic circuit breaker is made of high quality insulation material. Insulation safety, fireproof and anti-drop, strong oxidation resistance and long service life. Produced by professional manufacturers.
  • Miniature circuit breaker is compatible with 120/240V electrical systems, making it a versatile choice for a wide range of applications and installations. Its plug-on design ensures easy installation and integration with Cutler Hammer load centers.
  • The size not only makes it compatible with residential load center and appliance circuit breaker panels, micro commercial distribution panels, pool equipment distribution panels, residential transfer distribution switch panels, making it suitable for most applications.
No. 8
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.
SaleNo. 9
docoewi CH250 2-Pole 60-Amp Circuit Breaker, Type CH 3/4-Inch Plug-On Molded Case Circuit Breaker, Thermal Magnetic Protection, 10 KAIC, 120/240V, Fit for Cutler Hammer Load Centers
  • 【Premium】Our products can be used in place of Eaton. Not original Eaton. The quality is far superior to the original product. CH260 circuit breaker is made of high quality insulation material. Insulation safety, fireproof and anti-drop, strong oxidation resistance and long service life. Fit for your power distribution switch r
  • 【Type CH250 Standard Circuit Breaker】Quick-closing, quick-break switch mechanism combined with inverse time element tripping operation and trip-free handle design. Type CH250 circuit breakers trip to the off position, eliminating nuisance callbacks. The thermal magnetic trip curve avoids nuisance tripping on mild overloads while reacting almost instantaneously to severe short circuit conditions.amp breaker
  • 【Perfectly Compatible for Easy Installation】Type CH 3/4-Inch Plug-On Molded Case Circuit Breaker is the standard size. Normal tripping requires two 3/4" (19.1 mm) spaces.The OEM size not only makes it compatible with residential load center and appliance circuit breaker panels, micro commercial distribution panels, pool equipment distribution panels, residential transfer distribution switch panels, etc., but also makes it easy to plug and unplug during installation.breaker box
  • 【Product Parameters and Design】CH250 Two-Pole 120/240V, with a maximum voltage rating of 240 V. Standard interrupting rating is 10 kA at 240 V. Available for long-term, transient use in Cutler Hammer load centers. Multi-pole breakers have internal common trip connection to operate all poles simultaneously. Handles are marked with On-Off indication and ampere rating of the breaker.eaton 50 amp breaker 2 pole
  • 【Friendly and helpful service】After your purchase, if you are not satisfied with the product or have any other questions. Our after-sales support will get back to you within 12 hours. Help you solve your problems. We also offer a three-year warranty.cutler hammer 50 amp breaker 2 pole cutler hammer breaker
No. 10
Chtaixi 3 Pack 1 Pole Miniature Circuit Breaker, 16 Amp 120V/240V AC DIN Rail Mount Circuit Breaker, Thermal Magnetic Trip MCB C16
10 Consomer Reviews
Chtaixi 3 Pack 1 Pole Miniature Circuit Breaker, 16 Amp 120V/240V AC DIN Rail Mount Circuit Breaker, Thermal Magnetic Trip MCB C16
  • 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. 11
Chtaixi 12V-110V DC Miniature Circuit Breaker, 100 Amp 2 Pole Battery Breaker Protector for Solar PV System and RV, Thermal Magnetic Trip, DIN Rail Mount, High Current DC Disconnect Switch MCB 2P B100
  • 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 battery power systems, solar photovoltaic systems, RV, electric moped, or other DC systems.
  • INSTALLATION: Screw clamp wires, 35mm DIN rail mount.
No. 12
Chtaixi AC Miniature Circuit Breaker, 32 Amp 120V/240V 2 Pole DIN Rail Mount Circuit Breaker, Thermal Magnetic Trip, Solar AC Disconnect Switch MCB C32
  • 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. 13
CH2100 2-Pole 100-Amp Circuit Breaker, Type CH 3/4-Inch Plug-On Molded Case Circuit Breaker, Thermal Magnetic Protection, 10 KAIC, 120/240V, Fit for Cutler Hammer Load Centers by SOYGN
  • 【Hight quality】CH2100 circuit breaker is made of high quality insulation material. Insulation safety, fireproof and anti-drop, strong oxidation resistance and long service life. Produced by professional manufacturers. Superior production quality. Perfect fit for your power distribution switch panel.
  • 【Type CH2100 Standard Circuit Breaker】Quick-closing, quick-break switch mechanism combined with inverse time element tripping operation and trip-free handle design. Type CH2100 circuit breakers trip to the off position, eliminating nuisance callbacks. The thermal magnetic trip curve avoids nuisance tripping on mild overloads while reacting almost instantaneously to severe short circuit conditions.
  • Perfectly Compatible for Easy Installation】Type CH 3/4-Inch Plug-On Molded Case Circuit Breaker is the standard size. Normal tripping requires two 3/4" (19.1 mm) spaces.The OEM size not only makes it compatible with residential load center and appliance circuit breaker panels, micro commercial distribution panels, pool equipment distribution panels, residential transfer distribution switch panels, etc., but also makes it easy to plug and unplug during installation.
  • 【Detail】CH2100 Two-Pole 120/240V, with a maximum voltage rating of 240 V. Standard interrupting rating is 10 kA at 240 V. Available for long-term, transient use in Cutler Hammer load centers. Multi-pole breakers have internal common trip connection to operate all poles simultaneously. Handles are marked with On-Off indication and ampere rating of the breaker.
  • 【Best After-sales service support】After your purchase, if you are not satisfied with the product or have any other questions, feel free to contact us. Our after-sales support will get back to you within 18 hours. Help you solve your problems. We also offer a five-year warranty.
No. 14
40 Amp 3 Pole Type QP Circuit Breaker Plug-On Molded Case Circuit Breaker, Thermal Magnetic Protection, 10KAIC, 120/240V, Fit for Commercial and Light Industrial installations(3P 40A)
  • This device is designed to protect electrical circuits from damage caused by overloading or short circuits. When a fault occurs, the circuit breaker automatically cuts off the flow of electricity, preventing potential hazards and equipment damage.
  • Thermal magnetic protection mechanism uses a powerful magnetic force to trip the breaker quickly in response to a short-circuit. This helps prevent further damage to the system and ensures the safety of occupants and property.
  • Magnetic circuit breaker is made of high quality insulation material. Insulation safety, fireproof and anti-drop, strong oxidation resistance and long service life. Produced by professional manufacturers.
  • Miniature circuit breaker is compatible with 120/240V electrical systems, making it a versatile choice for a wide range of applications and installations. Its plug-on design ensures easy installation and integration with Cutler Hammer load centers.
  • The size not only makes it compatible with residential load center and appliance circuit breaker panels, micro commercial distribution panels, pool equipment distribution panels, residential transfer distribution switch panels, making it suitable for most applications.
SaleNo. 15
CH260 2-Pole 60-Amp Circuit Breaker, Type CH 3/4-Inch Plug-On Molded Case Circuit Breaker, Thermal Magnetic Protection, 10 KAIC, 120/240V, Fit for Cutler Hammer Load Centers(5-Years Warranty)
  • 【Hight quality】CH260 circuit breaker is made of high quality insulation material. Insulation safety, fireproof and anti-drop, strong oxidation resistance and long service life. Produced by professional manufacturers. Superior production quality. Perfect fit for your power distribution switch panel.
  • 【Type CH260 Standard Circuit Breaker】Quick-closing, quick-break switch mechanism combined with inverse time element tripping operation and trip-free handle design. Type CH260 circuit breakers trip to the off position, eliminating nuisance callbacks. The thermal magnetic trip curve avoids nuisance tripping on mild overloads while reacting almost instantaneously to severe short circuit conditions.
  • 【Perfectly Compatible for Easy Installation】Type CH 3/4-Inch Plug-On Molded Case Circuit Breaker is the standard size. Normal tripping requires two 3/4" (19.1 mm) spaces.The OEM size not only makes it compatible with residential load center and appliance circuit breaker panels, micro commercial distribution panels, pool equipment distribution panels, residential transfer distribution switch panels, etc., but also makes it easy to plug and unplug during installation.
  • 【Detail】CH260 Two-Pole 120/240V, with a maximum voltage rating of 240 V. Standard interrupting rating is 10 kA at 240 V. Available for long-term, transient use in Cutler Hammer load centers. Multi-pole breakers have internal common trip connection to operate all poles simultaneously. Handles are marked with On-Off indication and ampere rating of the breaker.
  • 【Best After-sales service support】After your purchase, if you are not satisfied with the product or have any other questions, feel free to contact us. Our after-sales support will get back to you within 18 hours. Help you solve your problems. We also offer a five-year warranty.
SaleNo. 16
30 Amp 3 Pole Type QP Circuit Breaker Plug-On Molded Case Circuit Breaker, Thermal Magnetic Protection, 10KAIC, 120/240V, Fit for Commercial and Light Industrial installations(3P 30A)
  • This device is designed to protect electrical circuits from damage caused by overloading or short circuits. When a fault occurs, the circuit breaker automatically cuts off the flow of electricity, preventing potential hazards and equipment damage.
  • Thermal magnetic protection mechanism uses a powerful magnetic force to trip the breaker quickly in response to a short-circuit. This helps prevent further damage to the system and ensures the safety of occupants and property.
  • Magnetic circuit breaker is made of high quality insulation material. Insulation safety, fireproof and anti-drop, strong oxidation resistance and long service life. Produced by professional manufacturers.
  • Miniature circuit breaker is compatible with 120/240V electrical systems, making it a versatile choice for a wide range of applications and installations. Its plug-on design ensures easy installation and integration with Cutler Hammer load centers.
  • The size not only makes it compatible with residential load center and appliance circuit breaker panels, micro commercial distribution panels, pool equipment distribution panels, residential transfer distribution switch panels, making it suitable for most applications.
No. 17
Chtaixi AC Miniature Circuit Breaker, 32 Amp 120V/240V 1 Pole DIN Rail Mount Circuit Breaker, Thermal Magnetic Trip, Solar AC Disconnect Switch MCB C32
  • 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. 18
15 Amp 2 Pole Type QP Circuit Breaker Plug-in Mount Standard Miniature Circuit Breaker Thermal Magnetic Protection, 10KA 120/240V, Fit for Home, Commercial and Light Industrial installations(2P 15A)
  • This device is designed to protect electrical circuits from damage caused by overloading or short circuits. When a fault occurs, the circuit breaker automatically cuts off the flow of electricity, preventing potential hazards and equipment damage.
  • Thermal magnetic protection mechanism uses a powerful magnetic force to trip the breaker quickly in response to a short-circuit. This helps prevent further damage to the system and ensures the safety of occupants and property.
  • Magnetic circuit breaker is made of high quality insulation material. Insulation safety, fireproof and anti-drop, strong oxidation resistance and long service life. Produced by professional manufacturers.
  • Miniature circuit breaker is compatible with 120/240V electrical systems, making it a versatile choice for a wide range of applications and installations. Its plug-on design ensures easy installation and integration with Cutler Hammer load centers.
  • The size not only makes it compatible with residential load center and appliance circuit breaker panels, micro commercial distribution panels, pool equipment distribution panels, residential transfer distribution switch panels, making it suitable for most applications.
No. 19
Upgrade CH2100 2-Pole 100-Amp Circuit Breaker Type CH 3/4-Inch Plug-On Molded Case Circuit Breaker Thermal Magnetic Protection Fit for Cutler Hammer Load Centers 10 KAIC 120/240V Insulating Shell
  • Versatile Application: The CH2100 Circuit Breaker isn't limited to one specific use; it's your reliable go-to solution for a wide range of applications. Whether you're safeguarding your home's electrical system, keeping your pool equipment running smoothly, or ensuring your small business stays powered, this breaker is the versatile choice you can count on.
  • Robust Build: This circuit breaker is constructed using top-quality materials. The ABS plastic housing and metal components combine to create a breaker that's tough, corrosion-resistant, and able to withstand the test of time. You can trust it to perform even in demanding environments, ensuring long-lasting protection for your circuits.
  • Advanced Trip Mechanism: The CH2100 features a sophisticated trip mechanism that sets it apart. Its fast make and break switching, combined with a thermal-magnetic tripping element, deliver a two-fold benefit. It responds swiftly to severe short-circuit conditions, offering excellent protection, while also preventing nuisance tripping during minor overloads. This means your circuits stay safe without unnecessary interruptions.
  • Ease of Installation: Installing the CH2100 Circuit Breaker is straightforward, and it doesn't require a professional technician. With its plug-in design, you can easily handle the installation yourself. This not only saves you time but also avoids the cost of hiring a service technician. Detailed instructions and videos are readily available to guide you through the process.
  • Compatibility and Space-Efficiency: The CH2100 Circuit Breaker is designed to fit for Cutler Hammer Load Centers. Its standard 3/4-inch size means it can be accommodated in tight spaces, and you won't need any extra clearance. This space-efficient design ensures that your electrical panel remains organized and uncluttered.
No. 20
20 Amp 3 Pole Type QP Circuit Breaker Plug-On Molded Case Circuit Breaker, Thermal Magnetic Protection, 10KAIC, 120/240V, Fit for Commercial and Light Industrial installations(3P 20A)
  • This device is designed to protect electrical circuits from damage caused by overloading or short circuits. When a fault occurs, the circuit breaker automatically cuts off the flow of electricity, preventing potential hazards and equipment damage.
  • Thermal magnetic protection mechanism uses a powerful magnetic force to trip the breaker quickly in response to a short-circuit. This helps prevent further damage to the system and ensures the safety of occupants and property.
  • Magnetic circuit breaker is made of high quality insulation material. Insulation safety, fireproof and anti-drop, strong oxidation resistance and long service life. Produced by professional manufacturers.
  • Miniature circuit breaker is compatible with 120/240V electrical systems, making it a versatile choice for a wide range of applications and installations. Its plug-on design ensures easy installation and integration with Cutler Hammer load centers.
  • The size not only makes it compatible with residential load center and appliance circuit breaker panels, micro commercial distribution panels, pool equipment distribution panels, residential transfer distribution switch panels, making it suitable for most applications.

How to choose a good thermal magnetic circuit breakers

Does the idea of finding a fantastic thermal magnetic 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 thermal magnetic 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 thermal magnetic 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 thermal magnetic 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 thermal magnetic 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 thermal magnetic 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 thermal magnetic 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 thermal magnetic 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 thermal magnetic circuit breakers.

Durability: Durability and reliability are closely related concepts. You will benefit from a strong and long-lasting thermal magnetic 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 thermal magnetic 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 thermal magnetic 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 thermal magnetic circuit breakers.