Explore our core engineering catalog, designed and manufactured in-house for supreme electrical conductivity, heat management, and mechanical durability.
Molded Case Circuit Breakers (MCCBs) form the bedrock of low-voltage electrical protection systems globally. At the heart of every reliable MCCB is the metal stamping moldings—custom-engineered components such as busbars, terminal plates, moving contacts, and static terminal assemblies. These components must withstand intense thermal stress, electromagnetic repulsion forces, and mechanical cycling without degradation.
In industrial manufacturing, precision is paramount. The stamping of oxygen-free copper (T2 grade or equivalent) requires high-accuracy progressive stamping dies to guarantee tolerances as tight as ±0.01mm. This precise alignment prevents hot spots during long-term operational current loading, minimizing electrical contact resistance and avoiding premature tripping or critical failure modes.
Acereare Electric is a professional original manufacturer integrating R&D, production, and sales, specializing in molded case circuit breakers (MCCB), air circuit breakers (ACB), and related components. With over 20 years of craftsmanship inherited by two generations, RuiRui Electric was officially registered and established in 2015, marking the start of the current proprietor’s entrepreneurial journey. Boasting solid technical accumulation and a mature production system, our factory ranks among the top well-known ODM manufacturers in China in terms of comprehensive experience and professional capabilities.
Adhering to the core value of win-win cooperation, we have built a solid reputation among our customers for outstanding service, first-class products, and unbeatable prices.
One-Stop Service utilizing six kinds of Processing Technic, high precision production equipment and testing instruments. More than 10 manual and automated production lines ensure peak productivity.
More than 50 R&D engineers with over 5 years of work experience, familiar with 3D software design of parts, molds, and finished machine drawings. Over 50 R&D projects completed per year.
Owning two major factories to expand the production of components and complete machines. Integration management links various processes and departments through ERP and U8 software.
Rigorous multi-step quality inspection. Owning our laboratory to test part quality. Over 150 sets of testing instruments and 20 inspectors managing quality through PLM/BI/ERP/MES.
Specific circuit breaker and component configurations customized to match your industry's requirements for precise functionality and exceptional performance under severe environments.
Working directly with an integrated manufacturing cluster in China offers unmatched efficiency. Our stamping facilities in Wenzhou leverage nearby steel and copper mills, state-of-the-art tooling shops, and specialized surface treatment plants. This localized synergy ensures that from raw copper sheet slitting to high-speed progressive die stamping and final silver electroplating, every stage is executed within a 20km radius.
For our international partners, this translates to faster prototype iterations, lower tooling costs, and minimized risk of supply chain disruptions. When you import MCCB stampings from us, you're not just buying metal parts—you're securing a robust process engineered to absorb global market volatility while maintaining strict cost-control and technical compliance.
A good partner will assist you in quickly occupying the target market, securing a robust reputation for your brand, and generating long-term stable revenue streams.
The ARW1 series intelligent type ACB is applicable to the AC 50Hz distribution network with rated voltage of 690V and below, and rated current from 400A to 6300A. The ACB features an intelligent protection system and high-precision selective protection to improve power supply reliability. It is equipped with an open communication interface to perform the four remote functions: "remote sensing", "remote adjustment", "remote control", and "remote signaling" to meet the automation system demands of modern control centers.
Inside the ARW1, the metal stamping moldings must carry currents up to 6300A. This demands massive copper components with complex bending paths, which we produce using automated hydraulic presses and robot-assisted stamping systems. Every stamped part is quality-checked to prevent electrical hotspots and ensure complete mechanical alignment.
How we are preparing the next generation of smart electrical safety components for global infrastructure upgrades.
With the solar and energy storage markets expanding, MCCB internals must handle higher voltages. We are optimizing our copper stampings for 1500VDC networks, utilizing special alloy compositions to dissipate arc energy faster and prevent tracking failure.
Eco-friendly Plating Alternatives
To meet global environmental standards like RoHS and REACH, we are developing chromium-free, lead-free surface coatings. Our R&D team is testing tin-nickel and advanced organic silver formulations to maintain electrical performance while minimizing environmental impact.
Our factory is deploying in-die optical sensors that check stamping dimension tolerances in real-time. If a part deviates by even 0.01mm, the automated line pauses, preventing defect propagation and ensuring uniform high quality.
Acereare products and production lines are verified by third-party testing institutions to guarantee compliance with international safety and performance standards.
Get answers to common technical queries about MCCB manufacturing, progressive stamping tooling, and ordering processes.
Explore our industrial-grade Air Circuit Breaker models, auxiliary bases, and high-amperage components.
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