Circuit Breaker Manufacturer

We offer a diverse range of circuit breakers, designed to safeguard residential, commercial, and industrial electrical systems with precision and reliability. Our 7 high-performance models—including miniature circuit breakers (MCB), molded case circuit breakers (MCCB), and combined overcurrent protection devices（RCBO）—cover configurations from single-pole (1P) to four-pole (4P), with rated voltages up to 400V and currents up to 630A (50/60Hz AC). Engineered for overcurrent, short-circuit, and earth leakage protection, our solutions are ideal for wiring systems, appliances, and critical equipment in diverse applications.

Miniature Circuit Breaker (MCB): Essential for Residential & Light Commercial Safety
Our DSJM1 series MCBs set the standard for compact, reliable protection in residential and small-scale commercial setups. Available in 1P, 2P, 3P, and 4P variants, these MCB circuit breakers swiftly interrupt overloads and short circuits, ensuring safety in homes, offices, and retail spaces. The 4P models are particularly suited for three-phase systems, while 2P/1P options cater to single-phase applications like lighting and small appliances. 

Molded Case Circuit Breaker (MCCB): Heavy-Duty Protection for Industrial Loads
For commercial and industrial environments demanding higher current capacity, our DSJM1P Molded Case Circuit Breakers deliver robust performance. Capable of handling up to 630A, these MCCB circuit breakers are designed for motor control, distribution panels, and large electrical systems in factories, data centers, and commercial buildings. Their modular design allows easy integration with protective devices, while advanced arc-quenching technology minimizes downtime and equipment damage during faults. 

Combined Overcurrent & Residual Current Protection: Smart Solutions for Modern Grids
Our YYSM series combined circuit breakers (YYSM7L, YYSM3L, YYSM1L-32) integrate overcurrent, short-circuit, and residual current device (RCD) functionality, offering comprehensive protection against earth leakage and electrical faults. These RCBO circuit breakers (residual current circuit breakers with overcurrent protection) are critical for installations requiring dual-layer safety, such as wet environments, industrial machinery, or renewable energy systems. Featuring sensitive earth leakage protection and compact designs, they comply with international standards for residential and commercial use, reducing the risk of electric shock and equipment damage.

Versatile Configurations for Every Application
Whether you need a 220V circuit breaker for residential wiring, a 3-phase circuit breaker for industrial machinery, or a 4-pole MCB for complex three-phase systems, our range covers all voltage and current requirements. Key features include:
-Wide Current Range: 16A to 630A, adapting to small appliances or high-power industrial equipment. Both AC circuit breakers and DC circuit breakers are available. 
-Multi-Pole Options: 1P (single-phase), 2P (single-phase with neutral), 3P/4P (three-phase with/without neutral), ideal for diverse grid setups.
-Safety Technologies: Arc suppression, thermal-magnetic tripping, and earth leakage protection, ensuring compliance with global safety norms. Real smart circuit breaker.
-Durability: Corrosion-resistant materials and long operational life, even in harsh environmental conditions.
Besides low voltage circuit breakers, we also offer solutions for high voltage switchgear, including SF6 circuit breakers, vacuum circuit breakers.