Technology & Innovation
Advanced R&D Team
Our in-house R&D team works tirelessly to innovate and develop new products that set industry trends.
Cutting-Edge Equipment
We use modern equipment such as short circuit test machines, overload test machines, and medium-speed punch press machines to ensure the highest level of quality and performance.
Who We Are
Professional Electrical Manufacturer & Supplier
Zhejiang Dongan Electrical Co., Ltd. is a professional electrical manufacturer integrating design, production, sales, and service. Since its establishment, we have been focusing on the development and manufacturing of low-voltage electrical products, with nearly 30 years of industry experience.
We specialize in a wide range of circuit protection products, including AC MCCB, AC ELCB, AC ACB, and DC MCCB, and also provide supporting services such as thermosetting compression molding, metal stamping, and mold and parts manufacturing. Our products are widely used in industrial, commercial, and power distribution applications.
Decades of Expertise
With nearly 30 years of experience in electrical appliance design, manufacturing, and sales, we are pioneers in delivering reliable and innovative solutions to the market.
Superior Quality Assurance
Our products hold international certifications like CE, CB, TUV, and CCC, ensuring top-tier quality and compliance with global standards.
Comprehensive Services
From design to delivery, we offer a full spectrum of services, including custom product development based on client needs. Our dedicated R&D team ensures every product meets industry-leading standards.
State-of-the-Art Facilities
Our fully-equipped factory, along with modern test lines and automatic production machinery, guarantees high production efficiency and safety.
Welcome to buy dc500v mccb, dc1000v mccb, dc1000v mccb from GREENWATT. Our factory is one of the manufacturers and suppliers in China. Welcome new and old customers to continue to cooperate with us to create a better future together!
Featured Products
We specialize in a wide range of circuit protection products, including AC MCCB, AC ELCB, AC ACB, and DC MCCB.
Our products are widely used in industrial, commercial, and power distribution applications.
Our products are widely used in industrial, commercial, and power distribution applications.
News
2025-05-30
GreenWatt Announces TUV Certification for ZAM6Z 320A DC MCCB – Elevating Solar & Storage Safety!
BREAKING NEWS: GreenWatt’s flagship ZAM6Z 320A DC1000V/1500V Moluded Case Circuit Breaker has achieved TUV Rheinland certification (Cert. No: R506699540001), reinforcing its position as a top-tier DC MCCB manufacturer for renewable energy systems!
2025-09-18
DC MCB Global Export Guide: Standards & Applications
This guide explains DC MCB fundamentals, key standards (IEC 60898-2, UL 489/489B), and device selection for solar PV, energy storage, and EV charging. It maps regional compliance, offers application tips, and flags common pitfalls to speed safe global market entry.
2025-08-21
Type A vs Type AC RCCBs: Guide to Differences, Applications & Electrical Safety
RCCB-TYPE-A and RCCB-TYPE-AC varieties are distinctive among the many different types of RCCB due to the specialized functions they perform and the wide range with which they can be used. Electrical professionals and system specifiers need to understand when and where they are most appropriate.
2025-08-21
From 500 V to 1500 V — How Advanced DC Molded-Case Circuit Breakers Safeguard Modern Solar, EV Charging & Energy-Storage Systems
DC MCCBs operate on the same principles as AC MCCBs. The MCCB’s key operating principle is to separate the switch’s contact points rapidly to create a gap. Unlike AC circuit breakers, for which arc extinction is relatively simple, resulting from natural current diminishing zero-crossings, DC MCCBs must interrupt continuous current flow.
2025-08-15
The 2025 solar pv and energy storage world EXPO
The 2025 solar pv & energy storage world EXPO grandly opened in Guangzhou, marking the official launch of a premier event focused on new energy technology innovation and industry trends. On the opening day, GREENWATT's booth at Hall 11.2, Stand A805 captivated widespread attention with its professional expertise and brand appeal.
2025-08-15
AC MCCB Guide: AC800V, AC400V & Electronic Breakers for Power System Protection
A Molded Case Circuit Breaker (MCCB) is an important device that has been widely used around the world in power distribution systems for many decades to protect circuits and power equipment. Demand for these advanced devices has spread from factories, offices, and homes to cover all types of industrial and commercial buildings, where the reliable distribution of power and the protection of people and equipment from electric shock have paramount importance.
