Your Trusted Circuit Breaker PCB Manufacturer Since 2008

PCBMay manufactures the quality-based and 100% brand new circuit breaker PCB. We manufacture and provide you with a satisfying circuit breaker PCB that helplessly advantages your circuit breaker issues and projects.

  • Rich-experienced circuit breaker production
  • Top-quality circuit breaker 
  • Advanced production equipment and inspection facilities
  • Provides online services and fast delivery action
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Circuit Breaker PCB is Your Choice to Delight Your Business

PCBMay is a famous foundation that manufactures different varieties of PCB components, including the circuit breaker PCB. We have full-nourished experience in manufacturing a circuit breaker PCB that constantly meets all your multifarious standards. We can allow you to send us your original layout for your circuit breaker PCB. Don’t feel any pause to inquire about PCBMay right now!

Types of Circuit Breaker PCB Meet Your Requirments

2A Mini Circuit Breaker PCB

Submits the UL approval. It has a rated power current of 0.8A-15A. It gives you the function of the overcurrent protection of your circuit breaker.

1000V Circuit Breaker PCB

Our 1000V circuit breaker PCB has a concise operating temperature of -25°C- +50℃. High-efficient for high voltage power of your circuit breaker issues.

Copper Metal Coating Circuit Breaker PCB

It has a fully finished copper metal coating and is suitable in all electronic field installations—lightweight, good function tolerance, and environmentally friendly.

Customized Circuit Breaker PCB

Our customized circuit breaker PCB is applicable in lightweight and heavy-duty circuit breaker installations. It has a board size of 0.8 to 2.0mm

FR4 Circuit Breaker PCB

It specializes in having a 1.6mm for board thickness, 0.25mm of its minimum hole size. Available in blue, green, red, black, and white solder mask colors.

Multi Layer Circuit Breaker PCB

We have a full-length multilayer circuit breaker PCB with a perfect finishing surface compatible with residential, industrial, commercial, and mechanical operations. 

Why Choose PCBMay Circuit Breaker PCB

PCBMay is a licensed circuit breaker PCB manufacturer in China. We have our quick-witted PCB sourcing team who manages to execute all your circuit breaker PCB demands. Thus, we only use those materials that comply with the production guidelines to ensure our products’ good quality and results. PCBMay operates the high-end standard of production equipment for the fastest progression of circuit breaker PCB.

PCBMay pays full attention to inspecting and analyzing every single detail of our products. So if ever you need a circuit breaker for your PCB business, PCBMay is your key solution. Please send us your viewpoint, and you are 100% assured that you will never be disappointed in choosing PCBMay!

VPC Plating Line

Related Circuit Breaker PCB

2-Layer Circuit Breaker PCB
2-Layer Circuit Breaker PCB
We produce a 2-layer circuit breaker PCB out of different shapes, including rectangle, round, slots, cutouts, complex, and irregular. Board thickness reaches 0.2-4mm.
4-Layer Circuit Breaker PCB
4-Layer Circuit Breaker PCB
4-layer circuit breaker PCB features with copper thickness 0.5-4oz. It has a minimum line width spacing count of 0.15mm.
Aluminum Cover Circuit Breaker PCB
Aluminum Cover Circuit Breaker PCB
A practical formula in fixing your circuit breaker malfunction. It has a finished aluminum membrane that provides an extreme function.
Electronic Circuit Breaker PCB
Electronic Circuit Breaker PCB
Our electronic circuit breaker PCB has a Halogen Free, FR4, Rogers, Hybrid, and Aluminum segment. It has an approximate line spacing of 0.075mm.
Fiber Glass Epoxy Circuit Breaker PCB
Fiber Glass Epoxy Circuit Breaker PCB
It has explicit details which are expedient in any circuit breaker trouble resolution. We have an available board size of 1020*1220mm to 1220*2440mm.
Rigid Circuit Breaker PCB
Rigid Circuit Breaker PCB
We offer a one-stop service for this rigid circuit breaker PCB. It comes from different solder mask colors, including blue, white, black, yellow, red, and green.
Single Layer Circuit Breaker PCB
Single Layer Circuit Breaker PCB
We produce a single-layer circuit breaker PCB with a corresponding layer of 1-16. It has a copper thickness of 0.3oz-12oz.
Standard Circuit Breaker PCB
Standard Circuit Breaker PCB
It comes from various thicknesses, sizes, widths, colors, solder masks, styles, formats, and features. We can offer you prestigious offers out of this product at cost-effective prices.

Circuit Breaker PCB Production Details As Following Up

Brown Oxide
PTH Line
VCP Plating   AOI  Exposure E-Test
Layer Count1-40layers
Base MaterialKBShengyiShengyiSF305FR408FR408HRIS410FR406GETEK370HRIT180ARogers4350BRogers4000PTFE Laminates(Rogers seriesTaconic seriesArlon seriesNelco series)Rogers/Taconic/Arlon/Nelco laminate with FR-4 material(including partial Ro4350B hybrid laminating with FR-4)
Board TypeBackplane、HDI、High multi-layer 、blind&buried PCB、Embedded Capacitance、Embedded resistance board 、Heavy copper power PCB、Backdrill.
Board Thickness0.2-5.0mm
Copper ThicknessMin. 1/2 OZ, Max. 10 OZ
PTH Wall25um(1mil)
Maximum Board Size1100*500mm(43”*19”)
Min laser drilling size4mil
Min. Spacing/Tracing2.7mil/2.7mil
Solder MaskGreen, Black, Blue, Red, White, Yellow,Purple matte/glossy
Surface TreatmentFlash gold(electroplated gold)ENIGHard goldFlash goldHASL Lead freeOSPENEPIGSoft goldImmersion silverImmersion TinENIG+OSP,ENIG+Gold finger,Flash gold(electroplated gold)+Gold finger,Immersion silver+Gold finger,Immersion Tin+Gold finger.
Min. Annular Ring3mil
Aspect ratio10:1(HASL Lead freeHASL LeadENIGImmersion TinImmersion silverENEPIG);8:1(OSP)
Impedance control±5ohm(<50ohm), ±10%(≥50ohm)
Other TechniquesBlind/Buried Via
Gold Fingers
Press Fit
Via in Pad
Electrical Test

Here there’re many laminate material datasheets, they’re useful and helpful for you, please see them:

TU-872Modified EpoxyDOWNLOAD2003403.8-4.03.8
RO 3010Cer/PTFEDOWNLOAD50010.2
RO 4003Hydrocarbon/CerDOWNLOAD>2804253.38
RO 4350BHydrocarbon/CerDOWNLOAD>2803903.48
RT/duroid 5880PTFE/GlassDOWNLOAD5002.2
ISOLAPolyclad 370HRFR4DOWNLOAD1703404.8-5.1
HitachiMCL-BE- 67GModified EpoxyDOWNLOAD1403404.94.4
MCL-LX-67YSpecial LaminateDOWNLOAD185-195325-3453.4-3.6
NelcoN4000-13Modified EpoxyDOWNLOAD210-2403653.73.6
N4000-13EPModified EpoxyDOWNLOAD210-2403503.43.2
N4000-13SIModified EpoxyDOWNLOAD210-2403503.43.2
N4000-13EP SIModified EpoxyDOWNLOAD210-2403503.43.2
ArlonArlon 25NCerDOWNLOAD2603.38
Arlon 25FRCerDOWNLOAD2603.58
Arlon 33NPolymideDOWNLOAD>2503534
Arlon 35NPolymideDOWNLOAD>2503634.2
Arlon 85NPolymideDOWNLOAD2503874.2
StablcorST325DOWNLOADThermal conductivity:75w/m.k(with 1oz copper)
ST10DOWNLOADThermal conductivity:325w/m.k(with 1oz copper)
Bergquistht-04503DOWNLOADThermal conductivity:2.2w/m.k(with 1oz copper)


PCBMay offers flexible shipping methods for our customers, you may choose from one of the methods below.

1. DHL

DHL offers international express services in over 220 countries.
DHL partners with PCBMay and offers very competitive rates to customers of PCBMay.
It normally takes 3-7 business days for the package to be delivered around the world.

DHL Forwarder

2. UPS

UPS gets the facts and figures about the world’s largest package delivery company and one of the leading global providers of specialized transportation and logistics services.
It normally takes 3-7 business days to deliver a package to most of the addresses in the world.

UPS Forwarder

3. TNT

TNT has 56,000 employees in 61 countries.
It takes 4-9 business days to deliver the packages to the hands
of our customers.

TNT Forwarder

4. FedEx

FedEx offers delivery solutions for customers around the world.
It takes 4-7 business days to deliver the packages to the hands
of our customers.

Fedex Forwarder

5. Air, Sea/Air, and Sea

If your order is of large volume with PCBMay, you can also choose
to ship via air, sea/air combined, and sea when necessary.
Please contact your sales representative for shipping solutions.

Note: if you need others, please contact your sales representative for shipping solutions.

On our website you can use the following payment methods:

Telegraphic Transfer(TT): A telegraphic transfer (TT) is an electronic method of transferring funds utilized primarily for overseas wire transactions. It’s very convenient to transfer.

Bank/Wire transfer: To pay by wire transfer using your bank account, you need to visit your nearest bank branch with the wire transfer information. Your payment will be completed 3-5 business days after you have finished the money transfer.

Paypal: Pay easily, fast and secure with PayPal. many other credit and debit cards via PayPal.

Credit Card: You can pay with credit card: Visa, Visa Electron, MasterCard, Maestro.

    PCBMay- Your Premier Circuit Breaker PCB Manufacturer in China

    PCBMay is your perfect solution for your circuit breaker needs and requirements. It is also excellent in assisting your PCB prototyping business and projects. We encourage you to avail one of our PCB components.

    Since 2008, we have focused on manufacturing the original configuration of circuit breaker PCB. We have 8,000+ workshop facilities as well as 500+ employees for circuit breaker PCB fast production. 

    PCBMay is qualified for being your no.1 circuit breaker PCB manufacturer and supplier. We have our clever engineers and working employees who establish to carry off all your product standards. We are free to accept any of your customized layouts and design for your selected circuit breaker essentials. 

    For 10+ years in circuit breaker PCB production, we surpassed our product’s protection surveillance, including IPC classes 2 and 3. Moreover, to ensure its quality, we also submit the international product standard requirement like the ISO9001:2008, RoHS, REACH, ISO9001:2015, UL(E477880) ISO14001:2015.

    PCBMay offers you layout, design, electronic components, and R&D elements. Every process may undergo in-depth critiquing. We have an input analysis system to ensure that every of our circuit breaker PCB may be advantageous to all our customers, especially for you.

    Circuit breaker PCB is widely applicable in mechanical, industrial, commercial, residential, automotive, or even medical applications. It helps to support the connection of your mechanical and electrical connections whereas, it provides a standard function to the overcurrent protection of your electronic devices.

    Choosing PCBMay can ideally help you in reaching for a prosperous business that you wish. You can include circuit breaker PCB in your PCB business. Aside from that, we also offer quality-based PCB components, including the rigid-flex PCB, HDI PCB, aluminum PCB, Rogers PCB, heavy copper PCB, etc. You can satisfy the perfect features of our PCB product since it is already tested and proven through ICT, FCT, SMTI, X-RAY, AOI, SPI, BGA, cleaning-aging test, and other testing essentials.

    Good service humanity is what we always portray. We are witty enough to give you some strategic advice on working and managing a tremendous PCB business like this. We can help you in increasing your business sales and profit. 

    Circuit Breaker PCB

    OEM and ODM services are acceptable. We can superintend a bulk of your orders as we can provide the lowest pricing rate. You can reach us anytime. We are glad to be your endless partner.

    Outreach PCBMay through our official website and hotline for further updates about the circuit breaker PCB and other PCB components! 

    Circuit Breaker PCB: The Ultimate FAQ Guide

    Are you worried about saving electronic devices from high current flow?

    Circuit breaker PCB is highly capable of bringing calmness of mind in this case. Its superior functionality and high durability improve the overall performance of electric circuits.

    PCBMay is the leading supplier of this PCB. If you don’t have enough time and resources to know about its manufacturing, working procedure, benefits, limitations,  etc, this FAQ guide will benefit you a lot. We hope you will get a reliable and straightforward explanation of your queries here. Let’s start.

    What Is A Circuit Breaker PCB?

    Circuit breaker PCB is a highly operative electronic circuit that protects the device from short circuits and overloading. It resists the flow of electricity while detecting excessive current flow or any other fault. That means this PCB ensures a long lifespan.

    It never gets damaged to save circuitry similar to a fuse. Its moisture and dust resistance impede chemical contamination and oxidation in the circuit board components.

    Circuit Breaker PCB

    Circuit Breaker PCB

    Besides, circuit breaker PCB shows an impressive performance in terms of flammability, signal transmission, thermal management, etc. That’s why it has turned into the most trustworthy device-protecting circuit solution in recent days.

    What Are The Major Applications Of Multilayer Circuit Breaker PCB?

    Multilayer circuit breaker PCB has numerous uses in multiple sectors because of its impressive functionality and thermal management. Its major applications include-

    • Commercial electronics goods
    • Industrial equipment
    • Automotive devices
    • Residential electronic machinery. Like washing machines, hairdryers, lighting, etc.
    • Medical instruments for different testing
    • Sensor
    • Aerospace
    • Defense equipment
    • Military industry
    • Telecommunication devices
    • Radar
    • Navigation system

    Useful Circuit Breaker PCB

    Useful Circuit Breaker PCB

    How To Compare Miniature And Molded Case Circuit Breaker PCB?

    Miniature and molded case circuit breaker PCBs both are effective in ensuring component protection. But, there are some differences between these two PCBs concerning their current rating, circuit pattern, use, etc.

    Here, a Comparative analysis between PCBs used in molded case circuit breakers (MCCB) and miniature circuit breakers (MCB) is given for your convenience.

    Interrupting Current Rating

    MCCB PCBs are capable of interrupting around 10000A to 200,000A current.  On the contrary,  this rating is around 1800A in the case of miniature circuit breaker PCBs.

    Nature Of Current Impedance

    Pcb, used in molded case circuit breakers restricts temperature and faulty electricity. But, MCB circuit boards deal with overload currents.


    Miniature circuit breaker PCB is applicable for residential uses. It usually restricts lower current loads. You can apply this circuit board in lighting sectors effectively.

    But, molded case PCB circuit breakers are compatible with higher current loads of high-density applications. You can rely on this PCB to protect your electronic appliances used in commercial and industrial areas.

    Current Rating

    The highest current rating of an MCCB PCB is more than 1600A, where MCB PCB’s maximum current rating is around 100A. This advantage improves the use of molded case circuit breakers to a great extent.

    Miniature Circuit Breaker

    Miniature Circuit Breaker


    PCB used in a molded case circuit breaker offers better functionality due to its portable facility. Besides, you can control this PCB from a remote place. But, miniature PCB circuit breakers lack portability and remote control facility.  It also has a lesser number of versions compared to MCCB.

    So, you can understand that circuit breakers provide better performance when they are in the molded case rather than in miniature form. Watch this video for getting a better idea:

    What Is The Highest Rated Current Of A Circuit Breaker PCB?

    Circuit breaker PCB is compatible with both low and high current loads. Its current rating varies concerning its types. The highest value of the current rating is around 1600-2000A in the case of molded case circuit breaker PCB.

    It is used in industrial types of machinery and military equipment where a large current load is necessary. But, this rating is very low for other types of PCB circuit breakers, like miniature and residential.

    What Are The Benefits Of Using A Circuit Breaker PCB?

    Circuit breaker PCB renders countless benefits to electronic products. Some of its most noteworthy advantages are explained here-

    • It impedes different types of stresses caused by excessive current. Like overloads, short circuits, line-to-ground fault currents, etc.
    • It remains durable for a long time. This is resistant to moisture and other external contaminants. That’s why its initial higher cost won’t affect you.
    • Circuit breaker PCB is capable of operating at a large-scale temperature range. Its commendable thermal management process allows it to tolerate hot and cold weather.
    • This PCB is functional in multilayer stackup and single-layer designs. So, it enables you to manufacture lightweight and robust appliances.
    • It has good control over the electrical arc.

    Effective Circuit Breaker PCB

    Effective Circuit Breaker PCB

    How Does A Circuit Breaker PCB Operate?

    Circuit breaker PCB has a superlative operating process that ensures the highest protection of electrical components. This PCB starts its operation when a particular wire gets overloaded with electricity or experiences a short circuit.

    Overcurrents produce excess heat that results in burning the wire. It is harmful to the devices. Circuit breaker PCB controls the operation of circuit breakers in electric circuits. It enables the circuit breaker to restrict overcurrents and shut down the current flow in that wire.

    Highly Functional Circuit Breaker PCB

    Highly Functional Circuit Breaker PCB

    Its effective heat distribution mechanism plays a role to minimize the effect of heat. That’s why it remains safe and you don’t need to replace the circuit breaker like fuses. Watch the following video to know clearly about its functioning.

    What Is The Operating Temperature Of 1000V Circuit Breaker PCB?

    Circuit breaker PCB of 1000V operates at a concise operating temperature range. It is supremely functional from extreme cold to very hot atmospheres. Its lowest and highest working temperature is -25°C and 50°C respectively.

    That’s why its acceptability is high-mounting in industrial zones. There this PCB handles hot weather superbly. Again, you have an opportunity to protect circuitry used in cold environments. Its efficiency in high-voltage PCB applications is commendable.

    PCB materials used in circuit breakers have impressive resistance against thermal stress. Since it is a high TG PCB, its thermal conduction is sufficient enough to save the components from overheating. Thus, the longevity and durability of the whole device increase simultaneously.

    Which Features Does A Customized Circuit Breaker PCB Offer?

    Customized circuit breaker PCB’s board size is around 2mm. This PCB offers some advanced features that increase the dimensional stability of electronic gadgets. Such as, it is supportive of customizing PCB surface area so that you can accommodate the PCB components with higher reliability.

    Customized Circuit Breaker PCB

    Customized Circuit Breaker PCB

    This characteristic is suitable for high-density manufacturing and lightweight appliances. Besides, you can include additional layers and metal coatings in your existing design. This type of customization promotes the integrity of the entire circuit to a large extent.

    How Does A Circuit Breaker PCB Control The Electrical Arcs?

    Electrical arcs are common in circuit breaker operation. When a circuit breaker interrupts overcurrents, they flow through an ionized medium that has a lower resistive path. Then, this path starts glowing due to excess heat and it is called an electrical arc. Circuit breaker PCB controls these arcs efficiently.

    This PCB has an integrated cooling mechanism because of dissipating heat properly. Decreased temperature lessens the rate of ionization in gaseous mediums that eventually increase the arc resistance. That’s how a circuit breaker PCB takes care of electrical arcs without declining the performance.

    What Are The Differences Between Circuit Breaker PCB And Fuse?

    Though fuse and circuit breaker PCB both save the electrical components from damage, these two mechanisms have some dissimilarities. Such as-

    • Fuses get damaged while experiencing overcurrents. Thus, they disconnect the circuit and protect the components. But, circuit breaker PCB doesn’t allow a circuit breaker to separate the circuit. It obstructs excessive current flow for delivering the component’s protection.
    • Circuit breakers provide some optional protective features in the circuit that are absent in the case of fuse applications.
    • Its resistance against dust and moisture is more sustainable compared to an electrical fuse.
    • PCB circuit breakers require a higher initial and maintenance cost than fuses. But, they seem to be cost-effective in the long run.
    • Fuses are applicable for only overcurrents. On the other hand, circuit breaker PCBs are also highly operative to short circuits, overloads, ground-fault current.

    Circuit Breaker PCB VS Fuse

    Circuit Breaker PCB VS Fuse

    Does A Circuit Breaker PCB Have Any Limitations?

    Every count has two opposite sides. Similarly, a circuit breaker PCB also has some negative issues. Its considerable limitations are-

    • It shows vulnerability against overheating in some cases.
    • Its price initially seems to be high compared to other protective circuit solutions.
    • You need to spend significant time on its maintenance.

    Faultless Circuit Breaker PCB

    Faultless Circuit Breaker PCB

    These limitations of PCB circuit breakers can’t affect you due to their immense positive sides. So, there is no chance of hesitation in the case of using a circuit breaker PCB for small-scale and high-volume projects.

    Is A Circuit Breaker PCB Moisture-resistant?

    A circuit breaker PCB has a negligible rate of moisture absorption. Its materials are responsible for making this PCB resistant to humid weather. It contains resin encapsulation that is an effective way to protect the PCB components from moisture and dust.

    Besides, you can incorporate various conformal coatings on the PCB surface. Its worthwhile surface finish technology supports this layering. So, it does not easily get affected by chemical contamination.

    Moisture-Resistant Circuit Breaker PCB

    Moisture-Resistant Circuit Breaker PCB

    This property resists the severe deviation of material’s thermal and electrical properties due to water or chemical compounds. Its IP rating is very impressive. You can use an IP66 circuit breaker PCB. It increases the shelf life of your PCB projects.

    What Is The Two-step Stored Energy Mechanism In Circuit Breaker PCB?

    Sometimes you need to close a circuit breaker quickly to ensure the safety of electronic devices. Then, the circuit breaker PCB applies the two-step stored energy mechanism.  This process is useful to store the higher energy that is required to close the circuit breaker within a short time.

    Here, the opening and closing springs of a circuit breaker are separate and there is no dependency between them. That’s why the closing springs are capable of storing high-charge energy. It enables these springs to be closed fast.

    A two-step stored energy mechanism also develops the safety of the device and operator. It allows distant charging for the closing springs. So, you can be relaxed about providing maximum protection.

    What Are The Most Significant Features Of A Circuit Breaker PCB?

    Circuit breaker PCB consists of outstanding materials and durable components. Its most significant features are-

    • Low relative permittivity. It varies from 4 to 8 in the case of its materials.
    • Almost zero moisture absorption rate. It is around 0.02%.
    • Low dissipation factor
    • The maximum current rating is around 1600 A.
    • High glass transition temperature. This is more than 170⁰C.
    • Low Z-axis thermal expansion coefficient.
    • High decomposition temperature. It is around 350⁰C.
    • High tensile strength
    • High thermal conduction
    • V-0 rating in the UL94 standard.

    Circuit Board PCB Features

    Circuit Board PCB Features

    How To Control Impedance In Rigid Circuit Breaker PCB?

    Rigid circuit breaker PCB delivers outstanding performance in maintaining the rigidity of the devices. At the same time, its impedance control is also commendable. This PCB ensures sufficient current conduction by the virtue of controlling impedance.

    Impedance affects the PCB performance in both positive and negative ways. It is changed because of the dielectric constant, thickness, and trace width. If you can maintain a low value of dielectric constant with wider trace width and thickness, it will be easier for you to control impedance in the signal transmission line of this PCB.

    Circuit Breaker PCB Impedance Control

    Circuit Breaker PCB Impedance Control

    Besides, the thickness of the insulating materials has an essential impact on this issue. Increased dielectric thickness is not suitable for impedance control. That’s why you need to take care of these factors while designing a circuit breaker PCB. Otherwise, uncontrolled impedance causes a deficiency of electronic applications.

    What Are The Types Of Circuit Breaker PCB?

    Circuit breaker PCBs have several types based on their uses, materials, design technologies, and so on. The most prominent PCB types used in circuit breakers are-

    • FR4 PCB
    • Electronic circuit breaker PCB
    • Hydraulic-magnetic PCB
    • Multilayer PCB
    • Circuit breaker single layer PCB
    • Circuit breaker miniature PCB
    • Rigid PCB
    • Molded case PCB circuit breaker
    • Residential circuit breaker PCB

    Single-Layer Circuit Breaker PCB

    Single-Layer Circuit Breaker PCB

    We supply the most reliable PCB circuit breakers consisting of worthwhile materials like FR4, epoxy resin, etc. Inquire us immediately to experience the highest quality of PCB manufacturing.

    Which Materials Are Used In Circuit Breaker PCB Fabrication?

    Circuit breaker PCB provides a top-notch performance in commercial, residential, and industrial electronic appliances. It becomes possible due to the proper use of materials during fabrication.

    This PCB consists of FR-4, epoxy resin, and composite epoxy materials. These PCB elements are highly operative to ensure a low dielectric constant and a high glass transition temperature. Besides, they cause minimum loss tangent in high-frequency PCB applications of circuit breakers.

    Moreover, the materials used in this PCB fabrication control impedance with superb effectiveness that is useful for obstructing high current loads. In a nutshell, these materials are the backbone of a circuit breaker PCB.

    What Is Residential Circuit Breaker PCB?

    Residential circuit breaker PCB is applied to protect home appliances from overcurrents and short circuits. Usually, single pole, double pole, AFCI, GFCI, etc are useful examples of PCB circuit breakers used in residential areas.

    GFCI is the short form of ground fault circuit interrupter. This type of residential circuit breaker printed circuit boards obstruct line-to-ground fault current. You can use these circuit boards in humid areas of indoor and outdoor sections.

    Single pole circuit breaker deals with an electrical wire. This PCB has a current rating of 15-30A. Again, Double pole PCB circuit breakers can handle two wires at the same time. It is applicable in dryers, washing machines, etc with a maximum of 200A rated current.

    Residential Circuit Breaker PCB

    Residential Circuit Breaker PCB

    Arc fault circuit interrupter (AFCI) circuit breaker PCB controls the mechanism of resisting electrical arc. It is not always possible through other types of residential PCBs.

    What Is Hydraulic-magnetic Circuit Breaker PCB?

    Hydraulic-magnetic circuit breaker PCB is a special type of protective electric circuit. It disconnects the power supply when overcurrents or short circuits happen. This PCB is effective for those devices which have a low current supply. Its current rating is around 100A.

    It is not temperature-sensitive. So there is no production of excessive heat in the case of hydraulic-magnetic type PCB circuit breakers. Usually, PCB controls a solenoid and an armature of this circuit. Overload electricity produces enough magnetic flux to make a connection between the pole and core of the hydraulic-magnetic system.

    Then the armature blocks the latch that generates the circuit breaker. At this stage, the circuit breaker stops the current flow through the solenoid by separating the connections.

    Hydraulic-Magnetic Circuit Breaker PCB

    Hydraulic-Magnetic Circuit Breaker PCB

    In the case of short circuit current, there is no movement of core in hydraulic-magnetic circuit breakers. Here, PCB enables the armature to be connected with the pole due to high magnetic flux density. The interrupting current capacity of this PCB is around 10kA at 240V AC during the short circuit.

    Does A Circuit Breaker PCB Support Copper Metal Coating?

    Circuit breaker PCB is greatly supportive of copper metal coating. It consists of a fully finished coating of copper metal on the PCB surface. So, it has immense applications in almost all installations of electronic fields.

    Copper coating on the circuit boards enhances the surface pad’s thickness. Besides, you can apply plated through-holes in the PCB layers that render proper copper connections. It increases the robustness of electric circuits.

    PCB Copper Coating

    PCB Copper Coating

    Moreover, well-measured copper thickness ensures ecological effectiveness and functional resistance of circuit breaker PCBs used in versatile devices. It also makes the gadget lightweight that affects the product’s sales significantly.

    Since copper is a highly conductive metal, you have to apply a cover of metal that protects the copper coating from oxidation and decay. Nickel, silver, hard gold, soft gold, tin, etc metals are highly applicable in surface finish processes applied to the PCB copper layers.

    What Is The Proper Copper Thickness Of FR-4 Circuit Breaker PCB?

    FR-4 base circuit breaker PCB provides supreme dimensional stability in electronic gadgets. Its copper thickness is 1.6mm. This thickness is appropriate for maintaining high dielectric strength. This feature improves the insulating properties of PCB circuit breakers.

    Its standard copper thickness allows you to place the drilled holes with perfect diameter. The lowest hole size on the FR-4 circuit breaker board is 0.25mm. This PCB with thick copper develops the current conduction in the PCB layers.

     FR-4 Circuit Breaker PCB

    FR-4 Circuit Breaker PCB

    Moreover, you can use effective surface finishes and conformal coatings to avoid surface corrosion and chemical doping. That’s why circuit breaker PCBs with FR-4 materials serve electronic projects for a long period.

    What Is The UL94 Rating Of Circuit Breaker PCB Materials?

    The UL94 rating of circuit breaker PCB materials is V-0. This rating indicates that these PCB materials won’t burn for more than 10 seconds during the vertical flammability test. Besides, there is no dripping allowed while its materials get burnt.

    V-0 rating is an indicator of impressive flammability. That means there is a low chance of damage in this PCB due to the burning issue. The UL94 is a reputed standard to verify the PCB performance while burning.

    PCB Flammability Test

    PCB Flammability Test

    Circuit breaker PCB has countless applications in various fields. This UL94 rating plays a vital role in its tremendous acceptance.


    Now, we think you are quite sure about the importance of a circuit breaker PCB for your projects. This PCB has a great influence on the sales output of electronic appliances due to its effective features.

    If you think about its quality, PCBMay manufactures top-quality circuit breaker PCB of different types. We have tried to cover most topics related to this PCB. For more information, contact us. Stay tuned.

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