Ranked miniature circuit breaker manufacturers
How this list is ranked- 01
BULL
公牛BULL
- Miniature circuit breakers
- Residual-current protection
- Extension sockets
Registered legal entity on file; email and phone published; operating since 1995.
View profile → - 02
CHINT
正泰
- Low-voltage circuit breakers
- Distribution boards
- Electrical control products
Registered legal entity on file; email and phone published; operating since 1984.
View profile → - 03
TENGEN
天正电气
- Low-voltage circuit breakers
- Industrial controls
- Intelligent instruments
Registered legal entity on file; email and phone published; publicly listed; operating since 1999.
View profile →
- 04
GD Power GD Full profile
Miniature circuit breakers / Busbar trunking / Distribution cabinets.
- Miniature circuit breakers
- Busbar trunking
- Distribution cabinets
- UPS systems
- Storage batteries
- Photovoltaic inverters
Why it ranks here: registered legal entity on file; phone published; operating since 2015.
- 05
Siemens Home Electrical 西门子家居电气 Full profile
Residential wiring, protection and smart home electrical systems.
- Residential circuit protection
- Switches and sockets
- Distribution and wiring boxes
- Extension sockets
- Smart home controls
- Miniature circuit breakers
Why it ranks here: registered legal entity on file.
- 06
DELIXI Electric 德力西电气 Full profile
Low-voltage distribution, industrial control and home electrical products.
- Low-voltage circuit breakers
- Distribution boards
- Industrial control products
- Home electrical products
- Automation equipment
- Variable-frequency drives
Why it ranks here: registered legal entity on file; phone published; operating since 2007.
International miniature circuit breaker brands in China
Foreign-owned groups with Chinese manufacturing or sales companies. Listed separately so the ranking above covers Chinese manufacturers only.
- INT
ABB ABB Full profile
Electrification and automation technologies for power and industry.
- MV/LV switchgear
- Circuit breakers
- Distribution boards
- Distribution automation
- Measurement and control
- Motors and drives
Why it ranks here: registered legal entity on file; email and phone published; operating since 1988.
- INT
Panasonic 松下 Full profile
Building electrical products and industrial electronic systems.
- Distribution boards
- Building electrical products
- Electronic components
- Industrial systems
- Residential technologies
- Miniature circuit breakers
Why it ranks here: registered legal entity on file; phone published; operating since 1918.
- INT
Legrand 罗格朗 Full profile
Electrical and digital infrastructure for buildings.
- Distribution boards
- Modular protection devices
- Switches and sockets
- Cable management
- Structured cabling
- Building automation
Why it ranks here: registered legal entity on file; phone published; operating since 1865.
- INT
Schneider Electric 施耐德电气 Full profile
Energy management, electrification and industrial automation.
- Switchgear
- Circuit breakers
- Distribution boards
- Industrial automation
- Energy management systems
- Connected electrical products
Why it ranks here: registered legal entity on file; phone published; operating since 1836.
What is a miniature circuit breaker (MCB)?
A miniature circuit breaker protects final circuits in buildings against overload and short circuit, usually up to about 125 A, and mounts on a DIN rail inside a distribution board. Buyers choose the trip curve to suit the load: B for general circuits, C for mixed loads, D for motors and transformers.
What buyers compare
- Rated current and number of poles
- Trip curve (B, C or D)
- Breaking capacity (for example 6 kA or 10 kA)
- Certification marks for the destination market
- Standard: IEC 60898-1 or IEC 60947-2
Comparison table
| # | Company | Province | Est. | Registered company |
|---|---|---|---|---|
| 01 | BULL公牛BULL | Zhejiang | 1995 | Gongniu Group Co., Ltd. |
| 02 | CHINT正泰 | Zhejiang | 1984 | CHINT Group Co., Ltd. |
| 03 | TENGEN天正电气 | Zhejiang | 1999 | Zhejiang Tengen Electrics Co., Ltd. |
| 04 | GD PowerGD | Guangdong | 2015 | General Power Technology (Shenzhen) Co., Ltd. |
| 05 | Siemens Home Electrical西门子家居电气 | Beijing | — | ABB (China) Ltd. — home electrical business |
| 06 | DELIXI Electric德力西电气 | — | 2007 | DELIXI Electric Co., Ltd. |
Frequently asked questions
How many miniature circuit breakers manufacturers and suppliers in China are listed here?
10 companies are listed for miniature circuit breakers (断路器). 6 Chinese manufacturers have full profiles and are ranked; 4 international brands with China operations are listed separately.
Where are China's miniature circuit breakers manufacturers located?
Among profiled companies: Beijing (4), Zhejiang (3), Guangdong (1), Shanghai (1).
How is this list ranked?
By the completeness and verifiability of each company's data: a registered legal entity, an official website, published contact details, a product range and company history. The rank is not a quality rating, and no company pays for its position. See How we rank for the full method.
How do I contact these manufacturers?
Each listing shows the company's official website and, where published, its email and phone number. Of the 10 companies listed, 10 have an official website and 4 publish an email address.