Discover the top 10 miniature circuit breaker (MCB) manufacturers in China. This updated guide highlights leading brands, their key products, and why they matter for global buyers.
1. SSPD
Official Website: www.shendianele.com
SSPD (Yueqing Shendian Electrical Co., Ltd.) is a professional manufacturer specializing in low-voltage power protection and control products. Its main product portfolio includes Moulded Case Circuit Breakers (MCCB), Air Circuit Breakers (ACB), AC Contactors, Miniature Circuit Breakers (MCB), Motor Protection Circuit Breakers (MPCB), and related accessories.
With over 10 modern production lines, comprehensive certifications (ISO 9001, CE, CB, CCC, RoHS, etc.), and integrated manufacturing + trading capabilities, SSPD has become a trusted partner for global distributors, switchgear assemblers, and engineering contractors across more than 80 countries.
Featured Products
Moulded Case Circuit Breaker (MCCB):
Designed for industrial distribution and machinery protection, supporting high-current, high-capacity applications.Air Circuit Breaker (ACB):
Intelligent LSIG protection for power distribution systems, data centers, and main switchboards.Miniature Circuit Breaker (MCB):
Compact protection solution for residential, commercial, and light-industrial installations — 1P to 4P options up to 63 A and beyond.AC Contactor & MPCB:
Reliable control and protection for motors and automation systems.
2. CHINT Group Co., Ltd.
Official Website: https://www.chintglobal.com/global/en/home.html
CHINT Group Co., Ltd. is one of the largest and most recognized electrical product manufacturers in China, offering a wide range of low-voltage products such as miniature circuit breakers, contactors, relays, and smart energy systems.
Featured Products
NB1 Miniature Circuit Breaker
The NB1 series is suitable for both residential and commercial applications. It features thermal-magnetic tripping, supports currents up to 63 A, and operates at 230/400 VAC.NBH8 UL489 Miniature Circuit Breaker
Available in 1P to 3P versions, with rated currents up to 63 A and a breaking capacity of 10 kA.
3. Delixi Electric Co., Ltd.
Official Website: https://www.delixi-electric.com/en/
Delixi Electric Co., Ltd. is a leading manufacturer of low-voltage electrical products in China, specializing in three major sectors — power distribution, industrial automation, and residential electrics.
Featured Products
DZ47 Series Miniature Circuit Breaker
Designed for AC 50/60 Hz circuits with rated voltage up to 400 V and current up to 63 A.CDB6i Miniature Circuit Breaker
Suitable for AC 50 Hz systems up to 500 V, offering overload, short-circuit, and isolation protection.CDBH-125 High-Current Breaker
Designed for heavy-duty applications requiring higher rated currents, ensuring reliable performance and protection.
4. People Electric Appliance Group Co., Ltd.
Official Website: https://www.peopleelectric.com/
People Electric Appliance Group Co., Ltd. is a professional manufacturer focused on both low- and high-voltage electrical equipment, providing complete system solutions for smart grids, intelligent manufacturing, smart buildings, industrial systems, smart firefighting, and renewable energy.
Featured Products
RDX6-63 Miniature Circuit Breaker
Designed for AC 50/60 Hz circuits, with rated voltage up to 400 V and current up to 63 A.RDX2-125 High-Breaking Capacity MCB
Available in 1P–4P configurations, with breaking capacity up to 10 kA.
5. Nader Electric Co., Ltd.
Official Website: https://www.nader-circuit-breaker.com/
Nader Electric Co., Ltd. focuses on the research, development, and production of high-quality miniature circuit breakers (MCBs), moulded case circuit breakers (MCCBs), and air circuit breakers (ACBs).
Featured Products
NDB2-63 Miniature Circuit Breaker
Rated up to 63 A and available in 1P to 4P configurations, offering reliable protection against overloads and short circuits.NDB6AZ-63 Miniature Circuit Breaker
Specially designed for DC applications, supporting rated voltages up to 80 V DC.
6. Tengen Electric Co., Ltd.
Official Website: https://www.tengenglobal.com/
Tengen Electric Co., Ltd. is a modern industrial enterprise focusing on power transmission and distribution equipment, automation solutions, and green energy systems.
Featured Products
TGNB1N-63 Miniature Circuit Breaker
Rated current up to 63 A and compatible with 230/400 VAC systems.TGNB1N-125 Series
Designed for heavy-duty applications, supporting currents up to 125 A, widely used in energy-intensive facilities and distribution panels.
7. Yueqing AISO Electric Co., Ltd.
Official Website: https://www.aisoelectric.com/
Yueqing AISO Electric Co., Ltd. is a rapidly developing manufacturer of low-voltage switchgear, circuit breakers, and solar-related electrical protection devices.
Featured Products
AISO DC Miniature Circuit Breaker
Specially designed for photovoltaic (PV) applications, rated up to 1000 V DC for fast short-circuit protection in solar installations.DZ47-63 Miniature Circuit Breaker Series
Compliant with IEC standards, available in 1P to 4P versions, with rated currents up to 63 A.
8. Zhejiang Beny Electric Co., Ltd.
Official Website: https://www.zjbenydc.com/
ZJ Beny Electric Co., Ltd. is a leading manufacturer of DC protection components for solar PV and battery energy storage systems.
Featured Products
BB1-63 DC Miniature Circuit Breaker Series
Rated up to 1000 V DC, suitable for rooftop solar systems, storage units, and DC combiner boxes.High-Speed PV Miniature Circuit Breaker
Compact MCB optimized for solar inverter systems, featuring excellent arc suppression and stable contact performance under variable load conditions.
9. Wenzhou Korlen Electric Appliance Co., Ltd.
Official Website: https://www.korlen.com/
Korlen Electric offers a wide range of products, including miniature circuit breakers (MCBs), moulded case circuit breakers (MCCBs), residual current devices (RCDs), and related components.
Featured Products
KNB1-63 Miniature Circuit Breaker
Designed for AC 400 V circuits (50/63 Hz), rated current up to 60 A.KNB1-125 Miniature Circuit Breaker
Tailored for higher-current applications, with rated current up to 125 A.
10. Zhejiang KRIPAL Electric Co., Ltd.
Official Website: https://www.kripal.com/
KRIPAL Electric Co., Ltd. is a well-known manufacturer with over 30 years of experience in electrical equipment production.
Featured Products
UKB7 Miniature Circuit Breaker Series
Designed for residential and commercial use, rated from 6 A to 63 A, available in 1 to 4 pole versions, and compliant with IEC 60898-1 standards.
Why Choose SSPD
At SSPD, we understand that reliable circuit protection is the foundation of every safe electrical system.
Our breakers and contactors are engineered to empower — built with precision, durability, and compliance with global standards.
We combine R&D strength, manufacturing expertise, and customer-focused customization to deliver high-performance solutions for diverse markets.
Choosing SSPD means choosing:
Proven safety and consistency
Flexible OEM / ODM customization
Competitive cost / value balance
Long-term partnership and professional service
