Household Miniature Circuit Breakers

1p circuit breaker, overload and short circuit protection, suitable for home use, wiring is single in and single out for firewire, offered by professional manufacturer, PUGAO (Plannter Electric).

The Household Miniature Circuit Breakers ranges from 1A to 63A, in the event of a short-circuit fault in the circuit, after actual testing can be quickly tripped within 0.1 seconds to protect electrical equipment and circuit safety.

Meanwhile, they also have dual functions of overload protection and short circuit protection, and the circuit breaker will delay tripping when overloaded. Suitable for home distribution box for example, daily lighting, socket circuit, air conditioning and kitchen appliance protection. Or protection elements for small power motors and control cabinets.

We have certificates of ISO9001, ISO14001, ISO45001, IEC standard type test report and so on. In terms of after-sales service, PUGAO provides one-stop, door-to-door, full range of transportation and supporting services, professional technical support and solutions.

How Do Household Miniature Circuit Breakers Protect Your Home?

Household MCBs primarily provide dual protection through thermomagnetic tripping technology.

1. Overload Protection

When multiple appliances—such as an electric heater, a hair dryer, and a microwave oven—are used simultaneously on the same outlet, the electrical current exceeds the wiring's safe capacity. Inside the MCB, a bimetallic strip heats up and bends, triggering a mechanical mechanism to trip the breaker; this cuts off the power supply, preventing the wire's insulation from melting and potentially causing a fire.

2. Short-Circuit Protection

In situations involving internal appliance faults—or external damage such as wires being gnawed through by rodents—the live and neutral wires may come into direct contact, causing the current to surge instantaneously to thousands of amperes. The electromagnetic coil within the Miniature Circuit Breaker generates a powerful magnetic force that instantly actuates the tripping mechanism, cutting off the power supply with extreme speed to prevent electrical arc explosions and equipment damage.

Why Choose Our Household Miniature Circuit Breakers?

Good insulation: The rated insulation voltage is up to AC400V, which can quickly cut off the faulty circuits in case of accidents, avoiding equipment damage and fire.

High current-breaking capacity: PUGAO offers a wide range of specifications from 6A to 63A, with a current-breaking capacity of up to 6kA, which can be used to disconnect the power supply in a timely manner in case of an unsafe short circuit in the daily household, and if there is a short circuit, the electromagnetic release function. It can quickly cut off the current and reduce the accident incidents.

Convenient installation: Adopting standard 35mm DIN rail, simple structure, easy to install, fast disassembly, suitable for all kinds of distribution boxes.

Quality and Certification Guarantee: We have our own factory specializing in the production of Household Miniature Circuit Breakers with more than 10 years of experience, and our products have passed CE certification and ISO9001 quality management system certification. Support OEM/ODM customized service.

Application Scenarios

PUGAO (Plannter Electric) residential miniature circuit breakers are specifically designed for home power distribution systems, providing a millisecond-level safety shield for every corner of your home life.

1. Kitchens and Bathrooms

These are the areas in a home with the highest concentration of power consumption and the most complex environmental conditions. Various appliances—such as electric ovens, dishwashers, electric water heaters, induction cooktops, and built-in steam ovens—are utilized here. Due to their high startup currents and the humid environment, robust protection is absolutely essential.

Our Advantage: Our 32A/40A circuit breakers feature a thickened contact design capable of withstanding frequent, high-load startups. Combined with superior arc-extinguishing performance, they ensure reliable operation—free from nuisance tripping or electrical arcing—even in hot and humid environments.

2. Bedrooms and Living Rooms

These living spaces house a multitude of precision devices that are extremely sensitive to electrical currents. Modern homes are equipped with smart TVs, home theater systems, computers, LED dimming systems, and smart home hubs. These devices are highly vulnerable to short-circuit surges; a momentary spike in current can result in irreparable damage to their circuit boards.

Our Advantage: PUGAO MCBs utilize a magnetic tripping mechanism with millisecond-level response speed to instantly cut off power the moment a fault occurs, thereby protecting expensive microchips from being burnt out.

3. Air Conditioning and HVAC Systems

Air conditioning systems typically require a stable, uninterrupted power supply over extended periods. Continuous operation generates sustained heat; inferior circuit breakers are prone to frequent nuisance tripping caused by excessive internal temperature rise.

Our Advantage: We employ a fully automated spot-welding process to significantly reduce internal contact resistance. Even during continuous full-load operation in high-temperature summer environments, our thermal tripping mechanism maintains precise accuracy, preventing premature wiring degradation caused by equipment overheating.

4. Smart Charging and Main Power Distribution

With the growing prevalence of electric vehicles, households are increasingly installing EV charging piles and main distribution boards. These installations demand exceptionally high breaking capacity and uncompromising reliability.

Our Advantage: Upon request, you can contact PUGAO to upgrade to a 2P (Double-Pole) circuit breaker featuring a robust 6000A breaking capacity. It simultaneously disconnects both the live and neutral wires, providing 100% physical isolation protection during home maintenance or in response to extreme power grid fluctuations, and complies with the ISO 9001 international safety standard.

How to Determine if Your Home's MCB Needs Replacement?

As a professional manufacturer and supplier, we provide comprehensive usage and maintenance guidelines alongside our products. However, when it comes to residential electrical installations, how can you determine whether a specific device requires replacement? If you observe signs of significant aging or declining performance, we recommend immediately replacing the unit with a new PUGAO product:

Frequent Nuisance Tripping: The circuit breaker trips automatically even when no high-power appliances are in use; this indicates fatigue in the internal bimetallic strip.

Difficulty Resetting: After tripping, the switch is difficult to push back up, or it feels loose and unstable when reset; this indicates wear and tear on the internal mechanical mechanism.

Discolored Casing or Burning Odor: The casing appears yellowed or discolored, or you detect a burning smell; this indicates poor contact within the internal terminals, leading to overheating—a serious fire hazard that requires immediate attention.

Failure to Trip During a Short Circuit: The switch fails to activate when a short circuit occurs, resulting in burnt wiring; this indicates a failure of the magnetic tripping mechanism.