OEM/ODM Custom MCB Solutions for Electrical Products
We offer one‑stop customization services tailored to both global established brands and emerging brands. As a specialized MCB manufacturer operating through a joint venture with Eaton, we have accumulated extensive experience in the R&D, design, mass production, and large‑scale delivery of miniature circuit breakers, contactors, and electrical accessories. Leveraging our industry‑leading R&D capabilities, we provide end‑to‑end OEM and ODM solutions that empower global brands, distributors, and project clients to launch highly competitive MCB products—products that not only meet local market certification standards but also closely align with specific market demands.
MCB Certifications & Quality Assurance
Every HUYU MCB undergoes rigorous testing and holds international approvals to ensure safety and reliability worldwide.
Your Premier MCB Manufacturing Partner
HUYU (Huanyu High‑Tech Co., Ltd.) was established in 1989 and operates a 100,000m² modern manufacturing base with over 1,000 employees. As an equal‑share joint venture with Eaton, we integrate R&D, manufacturing, sales, and service to provide low‑voltage AC and DC circuit breakers that meet global standards.
Explore Our MCB Breaker Range
From 6A miniature breakers to 125A three‑phase MCBs, our factory produces a full spectrum of certified circuit breakers for residential, commercial, and industrial applications.
HUM18-63 Miniature Circuit Breaker 63A 1P-4P
HUM18-63N MCB – 1P to 4P, 63A,Type B/C/D
EXB3-125 MCB Breaker – Single Pole to 4 Pole, 1A-63A
HUM18-125 MCB Circuit Breaker – 63A-125A
HUM18-80 – Miniature Breaker 80 Amp,1P to 4P,Type B/C/D
HUM17-40 MCB Electrical – 1P to 4P,6A-40A,Type B & C
HUM18-40 40A MCB
NT50 Double Pole MCB
EXB3-40 1P+N 40A AC Mini Circuit Breaker
EXB3-63 – 63A AC MCB,1P to 4P
MCB Types We Manufacture
Standard AC MCBs
- Single Pole MCB (1P)
- Double Pole MCB (2P)
- Three Pole MCB (3P)
- Four Pole MCB (4P)
High‑Current & Special
- 80A MCB / 100A MCB
- 125A MCB Breaker
- Type D MCB
- MCB Isolator / TPN MCB
DC & Solar MCBs
- DC MCB for Solar
- 500V/1000V DC MCB
- 63A DC MCB
- 2P DC Mini Circuit Breaker
Smart & Compact
- WiFi MCB
- Mini MCB 32 Amp
- MCB Panel Board
- 3 Phase MCB Distribution
Why HUYU is Your Best MCB Manufacturing Partner
Eaton Joint Venture
As an equal‑share partner with Eaton, HUYU combines global management standards with local manufacturing efficiency, ensuring every MCB meets IEC 60898‑1 and KEMA certification.
Complete MCB Range
We manufacture 6A to 125A, single‑pole to four‑pole, AC/DC, B/C/D curve MCBs. Whether you need a 32A DP MCB or a 100A four‑pole unit, we produce it in‑house.
Global Certifications
Our MCBs are backed by CB, CE, UL, TUV, KEMA, and DEKRA certifications, ensuring compliance for your target market whether it’s Europe, the Middle East, or Southeast Asia.
Rapid OEM & Wholesale
From 16A single‑pole MCBs to 125A 4P units, we supply factory‑direct pricing, laser branding, and custom packaging — all from our automated production lines.
HUYU Integrated MCB Manufacturing
Our automated assembly, testing, and warehousing facilities ensure every miniature circuit breaker meets rigorous quality standards.
Trusted by Global Brands
