OEM Partners

Circuit Breaker Manufacturer

MCB

Being a key element of our last distribution range our MCBs provide accurate overload and short circuit protection for households and businesses. With its high breaking power and in compliance with the IEC standards, the device guarantees isolation. We operate in the field of OEM/ODM customization and provide the possibility of choosing the required current rating of poles.

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RCCB

We provide RCCBs for earth leakage protection against ground faults, thus avoiding risks of electric shock and fire in homes, businesses and public places. Built to have the highest sensitivity and effective tripping mechanism, these products follow international safety standards and help ensure human safety. We also offer OEM/ODM customization with sensitivity ratings and pole numbers based on the requirements of any project across the globe.

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RCBO

RCBOs provide protection from overloads, short circuits, and earth leakage in a single compact unit. They are designed to provide instant fault detection with high breaking capacity according to the latest IEC specifications. We offer full OEM/ODM customization, which allows our RCBOs to match various project specifications.

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ACB

Our ACBs are high-current protection devices designed for main distribution switchboards, delivering reliable overload, short-circuit, and ground fault protection in industrial and commercial power networks. Featuring intelligent electronic trip units with adjustable protection parameters and communication capabilities, these devices ensure system selectivity and coordination. We offer OEM/ODM customization with various frame sizes, current ratings (up to 6300A), and communication protocols.

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ATS

Our ATS solutions automatically transfer loads between primary and standby power sources upon mains failure, ensuring uninterrupted power supply for critical applications in power distribution networks. Engineered with intelligent controllers and mechanical interlocking, these devices enable seamless switching with adjustable time delays and voltage monitoring. We offer OEM/ODM customization with various current ratings, pole configurations, and control logic to match diverse backup power requirements.

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MCCB

Our MCCBs provide reliable overload and short-circuit protection for branch circuits in power distribution networks, bridging the gap between main ACBs and final MCBs. Featuring high breaking capacities, thermal-magnetic or electronic trip units, and compact footprints, these devices deliver selective coordination and robust performance in industrial and commercial applications. We offer OEM/ODM customization with various frame sizes, breaking capacities, and trip unit configurations.

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ATS

Our ATS solutions automatically transfer loads between primary and standby power sources upon mains failure, ensuring uninterrupted power supply for critical applications in power distribution networks. Engineered with intelligent controllers and mechanical interlocking, these devices enable seamless switching with adjustable time delays and voltage monitoring. We offer OEM/ODM customization with various current ratings, pole configurations, and control logic to match diverse backup power requirements.

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Moulded Case Circuit Breaker

Huyu Electric’s DC moulded case circuit breakers offer high-breaking capacity, reliable fault isolation, and durable operation for solar, ESS, EV, and industrial DC systems, ensuring long-term protection and system stability.

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Certified Electrical Breaker Quality

Every HUYU electrical breaker is tested to meet IEC, UL, KEMA, and other international standards — ensuring safety, reliability, and compliance for your local market.

CB
CE
UL
TUV
KEMA
DEKRA

HUYU — Your Electrical Breaker Manufacturing Partner

Established in 1989, HUYU operates a 100,000m² base with over 1,000 employees. Our joint venture with Eaton means every electrical breaker — from miniature circuit breakers to moulded case and air circuit breakers — benefits from global R&D and strict quality systems. We serve over 100 countries with factory‑direct pricing and OEM/ODM flexibility.

35+
Years of Breaker Manufacturing
100,000
m² Production Base
1000+
Employees
100+
Countries Served

Electrical Breaker Types We Manufacture

Miniature & Residual Current Breakers

  • MCB (Miniature Circuit Breaker)
  • RCCB (Residual Current Circuit Breaker)
  • RCBO (Residual Current Breaker with Overcurrent)
  • DC Miniature Circuit Breaker

Moulded Case & Air Circuit Breakers

  • MCCB (Moulded Case Circuit Breaker)
  • ACB (Air Circuit Breaker)
  • ATS (Automatic Transfer Switch)
  • DC Contactor

Specialty Breakers

  • DC Isolation Switch
  • PV Combiner Box
  • Type A / AC / B / F Breakers
  • Circuit Breaker Switch Replacement

Electrical Breaker Brands & Applications

  • Chint‑Compatible Breakers
  • Breaker Electric Box Solutions
  • Electrical Breaker Tripping Prevention
  • Home, Commercial & Industrial Use

Why HUYU is Your Best Electrical Breaker Manufacturer

Eaton Joint Venture

As Eaton’s equal‑share partner, HUYU combines global R&D with local manufacturing efficiency. Every electrical breaker meets the same quality benchmarks as the world’s top electrical brands.

Complete Breaker Portfolio

We manufacture MCB, RCCB, RCBO, MCCB, ACB, DC breakers, ATS, and PV combiner boxes. Whether you need a 16A miniature breaker or a 1600A air circuit breaker, we produce it in‑house.

Global Certifications

Our breakers hold CB, CE, UL, TUV, KEMA, and DEKRA approvals. Whether you sell in Europe, the Middle East, or Southeast Asia, our products are ready for your target market.

Factory‑Direct OEM & Wholesale

Competitive ex‑factory pricing, MOQ from 2,000 pcs, custom branding, and rapid delivery — all backed by our Eaton‑standard automated production lines.

HUYU Integrated Electrical Breaker Manufacturing

Our automated assembly, testing, and warehousing facilities ensure every circuit breaker meets rigorous quality standards.

Breaker Assembly Workshop
Breaker Automatic Testing
Electrical Component Assembly
Automated Printing Equipment
Semi-Automated Production
Modern Warehouse

Trusted by Global Brands

Electrical Breaker FAQ

How to change electrical breaker?
Turn off the main power, remove the panel cover, disconnect the wires from the old breaker, unsnap it from the bus bar, and install the new breaker by reversing these steps. As a manufacturer, HUYU provides installation guides and technical support with every order.
What is an electrical breaker?
An electrical breaker, also known as a circuit breaker, is a safety device that automatically interrupts current flow when an overload or short circuit occurs. HUYU manufactures a complete range of breakers including MCB, RCCB, RCBO, MCCB, and ACB for global markets.
Can an electrical breaker go bad?
Yes, electrical breakers can wear out over time due to frequent tripping, age, or internal corrosion. Our breakers undergo 10,000‑cycle electrical endurance and 20,000‑cycle mechanical endurance tests to ensure long‑term reliability.
What does an electrical breaker do?
An electrical breaker protects wiring and connected devices by automatically shutting off power when it detects an overload, short circuit, or earth leakage. It is a critical safety component in every breaker electric box, from residential panels to industrial switchgear.
How do you tell if a breaker is broken?
Signs include frequent tripping without an obvious cause, a burning smell near the panel, visible scorch marks, or a breaker that won’t reset. If you suspect a failed breaker, replace it immediately. HUYU supplies certified replacement breakers compatible with most major electrical breaker brands.
Can I replace a breaker switch myself?
Yes, if you have basic electrical knowledge and follow safety procedures. However, always turn off the main power first. For complex breaker switch replacement in commercial or industrial settings, we recommend consulting a licensed electrician. Our factory also offers training and documentation for professional installers.

Let’s Start Custom Your Business!

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