OEM Partners

Circuit Breaker Manufacturer

MCB

HUYU Electric offers a full range of miniature circuit breakers for AC and DC circuits, covering 1A–125A with B/C/D tripping curves and breaking capacities up to 10kA. Certified to IEC 60898 and IEC 60947-2, our MCBs are trusted in distribution boards worldwide. OEM/ODM with custom branding available.

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RCCB

HUYU Electric is a certified RCCB manufacturer supplying Type AC and Type B residual current circuit breakers for earth leakage protection. Rated 25A–100A with 30–300mA sensitivity in 2P and 4P configurations, our RCCBs meet IEC 61008 standards. Source DIN rail RCCB devices direct from our factory with OEM branding available for project orders.

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RCBO

HUYU Electric's RCBOs combine overcurrent and earth leakage protection in a single DIN rail device. Rated from 6A to 125A with 30mA–500mA sensitivity, our RCBOs meet IEC 61009-1 and IEC 62423 (Type B). Manufactured in-house with full OEM/ODM support.

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ACB

HUYU Electric is an air circuit breaker manufacturer supplying ACBs for main incomer and feeder protection in commercial and industrial switchgear. Rated 630A–6300A at 400V–690V with 100kA breaking capacity. Our ACB factory produces intelligent trip units with LSIG protection and draw-out construction. Source air circuit breakers direct with OEM branding and IEC 60947-2 certification.

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ATS

HUYU Electric supplies PC-class automatic transfer switches for reliable backup power switching between utility and generator sources. Our ATS range spans 16A–3200A with fast transfer times, adjustable delays, and integrated breaker options. Factory-direct OEM/ODM with GB/T 14048.11 certification.

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MCCB

HUYU Electric is a molded case circuit breaker manufacturer producing AC MCCBs for industrial and commercial power distribution. Our MCCB factory supplies breakers rated 10A–1250A at 400V–690V with S/C/H/U breaking levels up to 125kA. Electronic trip units and 20kA Icw ensure full selectivity. IEC 60947-2 certified MCCB manufacturer with OEM/ODM services available.

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ATS

HUYU Electric supplies PC-class automatic transfer switches for reliable backup power switching between utility and generator sources. Our ATS range spans 16A–3200A with fast transfer times, adjustable delays, and integrated breaker options. Factory-direct OEM/ODM with GB/T 14048.11 certification.

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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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