Professional Circuit Breakers Manufacturer

Since 1985, we’ve developed and exported low voltage electrical products worldwide.
All of our products meet international standards and are certified with ISO, NF, SIRIM, SEMKO, CE, CB, SNI, TSE, PCT, etc.
With 40k pcs per days capacity, we can produce one container in under 5 days.
We offer competitive prices based on product quality and order quantity.
We serve global clients with fast replies—within 24 hours—and operate in a 38,000㎡ modern industrial zone.

Moulded Case Circuit Breaker (MCCB)

MCCB (Molded Case Circuit Breaker) is a robust electrical protection device designed to safeguard circuits against overloads and short circuits by interrupting current flow automatically, with adjustable trip settings and high current-handling capacities up to 2,500 amps for industrial applications. It features a molded insulating case, modular components like arc extinguishers and trip units, and is widely used in motors, generators, and high-power systems to ensure operational safety and minimize downtime in commercial or industrial environments.

MOQ	1200 pcs
Sample	Free sample can be provided for bulk order
Certification	ISO9001,CB,CE,TSE,SNI,NF,ROHS,SIRIM,SEMKO
Materials	Pure raw material, no return material
Strength	Recognized by the world’s top 500 companies
Experience	More than 40 years of industry experience
Warranty	3 YEARS
Delivery	3-7 days
Capacity	MCB 20 million units per year , RCCB 2 million units per year
Sample	Support free samples
Service	Support customized services

Company information

38000+square meters of the modern industrial zone
1000+ workers
50+ national patents
Annual capacity ：MCB 20+million units,RCCB 2+million units,Production of other low-voltage products are also more than 10 million units
KORELN has a complete set of industrial machinery and testing equipment for circuit breaker products, and can achieve more than 95% of the components produced by itself