As someone who’s been in the electrical industry for years, I often get asked by friends, “Where’s the best place to source electrical devices?” Every time, Yueqing comes to mind.
It’s my hometown, where I live, and I’ve watched this small city grow from a quiet place into a powerhouse of factories making electrical components. It’s bad to say the best, but in my opinion, for B2B buyers looking for a reliable MCCB manufacturer, Yueqing is the place to be.
I know many of you are familiar with industry giants like CHINT, Delixi, Tengen…But honestly, they’ve got enough attention. Beyond them, there are smaller, specialized factories that are just as impressive but offer more flexible pricing and customization.
Here, I’ve listed 10 hidden MCCB manufacturers for your reference. When I was doing the reasearch, I was amazed by how many options I found—from family-run workshops to growing factories, the variety was incredible. It’s not easy to pick, but finding the right supply partner is crucial for your business.
Sincede Intelligent Solutions
- Location: Yueqing
- Company type: manufacturing, wholesale
- Year founded: 2024
- The number of employees: 240
- Main product: MCCB(Finished & SKD)
- Other products: MCB(Finished & SKD), ACB
Sincede represents the new international face of a manufacturing veteran. While the brand name is fresh, our production lines have been running for 26 years. Before launching Sincede to serve global clients directly, we were the "hidden factory" behind many domestic giants (formerly known as Yuming Electric).
Why you should consider Sincede first?
Unlike many "assemblers" in the market who buy parts and put them together, we control the entire lifecycle of an MCCB. From designing and opening molds to stamping copper parts and final assembly, everything happens under our roof. This gives us 100% control over quality and cost.
In fact, our component quality is so trusted that we serve as a core component supplier for industry leaders like Delixi and Tengen. We have been supplying critical internal parts to them for years. When you choose Sincede, you are essentially getting the same industrial-grade quality that powers these famous top-tier brands—but at direct factory prices.
We are one of the few factories in China that actively promotes MCCB SKD (Semi-Knocked Down) solutions. If you are a factory owner or distributor looking to assemble breakers locally to save on import tariffs, we provide the kits and technical guidance you need.
Shanghai Dada Electric
- Location: Shanghai
- Company type: manufacturing, wholesale
- Year founded: 2004
- The number of employees: 400
- Main product: MCCB, MPCB, RCBO, RCCB, MCB
- Other products: ACB, Conjunction Box, Circuit Breaker Accessories
Dada used to be located in Yueqing, later they made a move to Shanghai.
I was impressed at first glance by their MCCB design—the white cover with a grey handle looks so clean and neat, it really catches my eye!
Something you won’t find in others’ profile is that they used many automatic machines to replace manual working, such as printing, deburring, tapping.
They’ve been around since 2004 and produce 400,000 MCCBs and 2,000,000 MCBs every year, which is quite an amazing number.
Suntree Electric
- Location: Yueqing
- Company type: manufacturing, wholesale
- Year founded: 2007
- The number of employees: 500
- Main product: MCB, MCCB, Isolating Switch
- Other products: SPD, Combiner Box, Cables, EV Charger
Suntree Electric has been dancing in the global stage for 18 years, with their products sold in over 100 countries. They focus on providing a wide range of solar solutions, covering everything from circuit breakers and fuses to EV chargers.
In the MCCB space, Suntree offers a variety of models designed for safety and efficiency. While they’re known for their solar solutions, their MCCBs are also included in their product family, catering to those needing reliable circuit protection, especially in renewable energy systems. (Note: If your main focus is industrial power distribution rather than solar, you might want to compare their specs with specialized industrial MCCB manufacturers.)
Kasan Electric
- Location: Yueqing
- Company type: manufacturing, wholesale
- Year founded: 2009
- The number of employees: 190
- Main product: MCCB, MPCB, RCCB, MCB, Hydraulic Magnetic Circuit Breaker
- Other products: Contactors, Thermal Relay, Metal&Junction Box, ATS
With 60% of their customers from South America, Kasan has shown they’re a 100% underrated company.
What made me list them is that apart from MCCB, they also produce hydraulic magnetic circuit breakers—something not every factory does!
They’ve been around since 2009 and I noticed on their website that they regularly attend the Canton Fair, which shows they’re serious about connecting with customers.
But honestly, their website has way too little info, the last post was updated in 2023. I think they don’t focus on digital marketing, which might be holding them back in the future.
Saide Electric
- Location: Yueqing
- Company type: manufacturing, wholesale
- Year founded: 1998
- The number of employees: 300
- Main products: MCCB, MPCB
- Other products: ACB
Next on the list is Saide, a key feature of them is that they provide not only MCCBs, but also MPCB(Motor Protection Circuit Breakers), which sets them apart from many competitors.
MPCBs are specifically designed to protect motors from overloads, short circuits, and phase failures, offering precise protection with adjustable trip settings—making them ideal for industrial applications with varying motor requirements. However, for standard power distribution projects, a robust Molded Case Circuit Breaker is often the more cost-effective choice.
Saide’s products are strictly according to international standards like IEC60947-2. If your project requires both MCCB and MPCB options, Saide could be a suitable choice.
SPX Electric
- Location: Yueqing
- Company type: manufacturing, wholesale
- Year founded: 2005
- The number of employees: 200
- Main products: MCCB, ELCB, MCB
- Other products: Relay, Contactors, Outdoor Fan, Electrical Starter, Solar Pump
I first came across SPX when I was sourcing Industrial Fan for one of my customers from Vietnam. I’ve never seen a factory produces mccb and outdoor fan at the same time. What an amazing combination, but SPX does!
Besides, they also provide solar pump and electrical starters, which are great for projects like irrigation or motor control. If you project needs more than just MCCB, SPX is worth a look.
Mutai Electric
- Location: Yueqing
- Company type: manufacturing, wholesale
- Year founded: 2012
- The number of employees: 300
- Main products: MCCB, Contactors, ATS
- Other products: SPD, RCCB, RCBO, ACB
13 years of experience helped Muti a lot to build their solid customer base. They now provide OEM services to the customers all over the world.
Like most players on the list, their product line covers the majority of circuit protection needs, including MCCB. Their MCCBs work for systems up to 1000V, good for both industrial and commercial use. Similarly, at Sincede, we ensure our Circuit Protection Range covers both residential and industrial applications with high breaking capacity.
A big highlight is that Mutai is a member of the Zhejiang Circuit Breaker Association, from which we can learn they are highly trusted and respected in the industry.
123 Electric
- Location: Yueqing
- Company type: manufacturing, wholesale
- Year founded: 1999
- The number of employees: 360
- Main products: ATS, MCCB, MCB
- Other products: ATS Cabinet, Slim Relay and Socket, Isolating Switch
Imagine you’re at a trade fair, surrounded by countless competitors. How do you make yourself stand out? A unique name can be the first step, and that’s where 123 Electric shines. I really like their brand name—it’s simple, catchy, and easy for customers to remember.
123 Electric has over 25 years of experience in low-voltage electrical products, focusing on Automatic Transfer Switches (ATS), MCCBs, and MCBs.
The market share of their ATSE in China has exceeded 60%. Meanwhile, their MCCBs, covering current grades from 16A to 3200A, support global clients across the Americas, EMEA, APAC, and ASEAN.
Shendian Electric
- Location: Yueqing
- Company type: manufacturing, wholesale
- Year founded: 1992
- The number of employees: 150
- Main products: MCCB, MCB, MPCB
- Other products: ELCB, ACB, MCCB Accessories
What surprised me most about Shendian Electrical is that even after 30+ years in the industry since 1992, they’re still following new trends and technology.
They use Shanghai Power Transmission and Distribution Equipment Co., Ltd. as their R&D platform to keep up with international circuit protection standards—I guess that’s the key to their success!
I really like their neat office and workshops—it’d be great to work in such a clean space! I also found a few helpful installation videos online, which is a nice touch.
ZOII Electric
- Location: Yueqing
- Company type: manufacturing, wholesale
- Year founded: 2012
- The number of employees: 300
- Main products: MCCB, MCB, Over-Under Voltage Protector
- Other products: SPD, PV Connnector, Combiner Box, Cable
My experience with ZOII was all about their boss, Mr. Zhang, I met him at a trade fair and chatted a little bit.
He didn’t treat me like other competitors do. Instead, he was warm, insightful, and he even shared with me the tips on how to choose the right MCCB for solar projects.
As we know, business is all about people, I believe he treats his customers with the same care and respect.
Apart from MCCBs, an important thing I have to say is that ZOII is also a direct factory for SPDs and Over-Under Voltage Protector, many customers also need them for their solar projects.
Conclusion
Sourcing from China offers incredible opportunities, but finding a factory that balances quality, price, and export service is the real challenge.
While all the manufacturers listed above have their strengths, Sincede stands out if you are looking for a partner who understands the deep technical details of MCCB manufacturing.
Whether you need finished breakers with your brand (OEM) or MCCB SKD kits to build your own assembly line, our 26 years of experience ensures you get the most competitive solution in the market.
