Zhejiang Dongan Electrical Co., Ltd, a professional China Manufacturer and Supplier, provides a complete range of AC Circuit Protection products designed to ensure the safety and stability of electrical distribution systems. Our product line includes the widely used AC Molded Case Circuit Breaker, which is suitable for industrial, commercial, and infrastructure power systems. With nearly 30 years of manufacturing experience, Zhejiang Dongan Electrical focuses on reliable product quality, stable supply capacity, and practical electrical protection solutions for global buyers looking for a dependable China factory.
AC Circuit Protection is a crucial protective device in AC power distribution systems, primarily used to prevent damage to equipment and lines under overload, short circuit, or abnormal current conditions. By promptly interrupting current, these products effectively protect electrical equipment, distribution cabinets, and the safe operation of the entire power system.
AC circuit protection equipment is an indispensable core component in industrial equipment, commercial buildings, power systems, and infrastructure projects.
As a professional electrical equipment manufacturer, Zhejiang Dongan Electrical Co., Ltd. has long provided stable and reliable circuit protection products to global customers, supporting bulk purchasing and project applications.
The AC Molded Case Circuit Breaker is the most common type of device in the AC Circuit Protection product series, typically used in medium and low voltage power distribution systems to protect circuits from overload and short circuit currents.
This circuit breaker features an insulated housing design and integrates a thermomagnetic trip device or electronic protection unit, automatically disconnecting the circuit in the event of abnormal current, protecting electrical equipment and the power grid system.
Compact design, suitable for distribution cabinet installation
Dual overload and short-circuit protection
Stable breaking capacity
Suitable for industrial equipment, commercial buildings, and power systems
Supports multiple rated current specifications
Typical application scenarios
Industrial power distribution systems
Commercial building power systems
Data center and server room power distribution
Factory equipment power protection
Power control cabinets and distribution cabinets
These application scenarios have high requirements for the reliability and stability of circuit protection equipment, therefore choosing an experienced manufacturer is particularly important.
Zhejiang Dongan Electrical Co., Ltd. is a modern electrical enterprise integrating design, manufacturing, sales, and service, specializing in the production of various electrical protection equipment, including AC MCCB, AC ELCB, AC ACB, and DC MCCB series products.
Nearly 30 years of industry experience, with continuous technological research and development and product innovation.
Multiple international certifications: CE, CB, TUV, CCC.
Comprehensive management system: ISO9001, ISO14001, ISO45001.
Automated testing equipment: short-circuit current tester, overload tester, automated assembly line, etc.
RoHS 2.0 laboratory, ensuring environmental protection and material safety.
Through modern production lines and a rigorous quality control system, the company can provide stable and reliable electrical protection products to global customers and support long-term cooperation and bulk supply.
The GreenWatt AC Circuit Breaker Curve C 63A 4P 6kA provides reliable protection for multi-phase systems, including three-phase plus neutral installations. Designed for inverters, generator panels, and main distribution boards, this 4-pole miniature circuit breaker ensures complete disconnection when needed. Source directly from GreenWatt, a trusted manufacturer in China, for quality, competitive pricing, and efficient supply.
Read MoreSend InquiryThe GreenWatt AC Circuit Breaker (Curve C, 10A, 2P) from Zhejiang Dongan Electrical, China, is a high-performance miniature circuit breaker designed for both residential and commercial use. As a reliable manufacturer-supplied solution, this 6kA breaking capacity unit provides robust protection against overloads and short circuits. Its 2-pole design disconnects both live and neutral lines, offering extra safety for LED lighting, small appliances, and control panels.
Read MoreSend InquiryGreenWatt is a leading manufacturer specializing in high-performance electrical distribution components. Our AC Circuit Breaker Curve C 63A 3P 6kA is engineered to provide robust protection for three-phase electrical systems in commercial, industrial, and residential environments. Designed with a Type C tripping characteristic, this 3-pole miniature circuit breaker (MCB) effectively handles moderate inductive loads, ensuring your equipment stays safe without frequent nuisance tripping.
Read MoreSend InquiryThe AC Circuit Breaker Curve C 40A 2P 6kA, manufactured by GreenWatt, is a miniature circuit breaker specifically designed for AC circuits. Featuring a Type C tripping curve, a rated current of 40A, a double-pole configuration, and a short-circuit breaking capacity of 6kA, this product provides efficient overload and short-circuit protection for electrical circuits.
Read MoreSend InquiryThe AC Circuit Breaker Curve C 63A 1P 6kA is a single-pole miniature circuit breaker manufactured by Greenwatt in China. Designed for lighting circuits, socket outlets, and small industrial applications, this 63A 1P AC breaker features a Curve C trip characteristic, providing smooth operation for inductive loads such as motors and fans.
Read MoreSend InquiryThe AC400V 800A Molded Case Circuit Breaker is a circuit breaker designed for industrial power distribution systems, suitable for overload and short-circuit protection in AC400V power systems. This product is supplied by GreenWatt China and is widely used in industrial switchboards, mechanical equipment power supply systems, and power protection for engineering projects.
Read MoreSend InquiryGreenWatt specializes in the research and development and production of high-performance circuit breakers. Their AC400V 630A Molded Case Circuit Breaker features a reliable thermal-magnetic protection system, effectively protecting against overload and short-circuit faults and ensuring stable operation of the circuit system. As a professional electrical equipment manufacturer, we offer direct factory pricing, OEM customization services, and comprehensive technical support.
Read MoreSend InquiryThe AC400V 400A Molded Case Circuit Breaker (MCCB) is a core power protection device developed by GreenWatt supplier for industrial power distribution scenarios. It is compatible with AC400V voltage and 400A current requirements, and features both reliable protection and convenient operation and maintenance.
Read MoreSend Inquiry