Explore our leading industrial electrical protection catalog manufactured with state-of-the-art automation systems.
Understanding the internal mechanisms designed to safeguard commercial, industrial, and utility infrastructure.
A Thermal Magnetic Molded Case Circuit Breaker (MCCB) is an indispensable safety device designed to protect electrical circuits from damage caused by overload and short circuits. It combines two core components to address different electrical fault types:
This dual protection configuration balances reliable system uptime with critical protection, minimizing downtime in complex industrial settings.
Our bimetals undergo precise factory calibration to ensure stable deflection under sustained load. This prevents premature tripping caused by ambient heat while maintaining protection against thermal runaway.
Designed to handle high prospective short-circuit currents (up to 200kA), our breakers incorporate advanced arc-chute grids. These split and cool electrical arcs rapidly to extend system service life.
Constructed with premium silver-alloy contact tips, our circuit breakers offer low contact resistance. This minimizes heat dissipation at full load and prevents contact welding under high-fault currents.
Founded in 2015, Acereare Electric operates two wholly-owned subsidiaries: RuiRui Electric and KeRui Electric. We specialize in the R&D, manufacturing, and global distribution of molded case circuit breakers (MCCB), air circuit breakers (ACB), and premium OEM electrical components.
Drawing on more than 20 years of craftsmanship developed across two generations, we have established our place among China's top-tier ODM partners. Today, our engineering solutions support energy and industrial infrastructure around the world.
R&D Engineers & Technicians
Skilled Assembly & Quality Personnel
Annual Production Value (RMB)
Years of Direct Export Experience
We maintain strategic partnerships with nearly 100 electrical engineering groups, distribution networks, and power system builders. Our factories leverage automated assembly lines and specialized testing chambers to guarantee compliance with international safety protocols.
Industrial performance built on supply chain integration, advanced R&D, and systematic quality assurance.
Our facilities feature six distinct in-house metal and plastic fabrication processes, utilizing advanced high-precision stamping and molding machinery. Operating more than 10 manual and automated assembly lines, we optimize production costs while maintaining quality control at every stage.
With 50+ engineers averaging 5+ years of design experience, we handle full-cycle development from 3D component modeling to complex mechanical trip simulation. Our team completes more than 50 research and product development projects every year.
We manage two specialized production plants focusing on parts manufacturing and final breaker assembly. Product lifecycles and operations are integrated through advanced ERP and U8 software to coordinate logistics and lead times.
Equipped with an on-site laboratory featuring 150+ specialized testing instruments, our team of 20+ inspectors monitors every production stage. Quality tracking is managed through integrated PLM, BI, ERP, and MES software platforms.
Ensuring system durability and protection in challenging, high-demand installation environments.
We utilize specialized, low-temperature resistant structural resins and low-viscosity lubricating oils. Our components are finished with thicker protective coatings, backed by certified performance test reports down to -40°C.
Our units undergo rigorous salt spray exposure tests—72 hours for completed assemblies and 48 hours for sub-components. These breakers withstand the corrosive, humid air of marine docks, coastal installations, and offshore substations.
For operations exceeding 2,000 meters, we provide calibrated high-altitude derating tables. These charts guide adjustments for reduced dielectric cooling and thinner air to maintain reliable performance.
Our standard MCCBs protect building systems and machinery from overload and short-circuit damage. These compact units balance cost-effectiveness with high operational safety margins.
Designed using high-temperature resistant engineering polymers and specialized heat barriers. Our copper and iron structural components are treated for humidity and corrosion resistance, verified in our 55°C environmental test chambers.
Our smart circuit breakers integrate communication, high-precision power metering, remote control, and edge-computing capabilities. They support various industrial protocols to interface with smart grids and SCADA platforms.
Acereare Group works with overseas distributors, grid developers, and systems integrators to customize products for regional specifications.
From custom logos and protective packaging to specialized mechanical designs and electrical components, our team provides full lifecycle support to accelerate product launches in your target markets.
Our engineering team can customize products to meet specific current ratings, breaking capacities, or mounting footprints.
Our production facilities maintain strict quality and safety certifications to meet global standards.
Technical guidance and sourcing information for procurement managers and electrical engineers.
Thermal magnetic MCCBs use a bimetallic strip and electromagnetic coil to detect overloads and short circuits physically. They are robust, cost-effective, and suitable for harsh environments. Electronic MCCBs utilize current transformers and microprocessors to monitor current waveforms, allowing for adjustable trip curves and integration with digital building management systems.
Ambient temperatures above 40°C can cause thermal breakers to trip prematurely. For these environments, we use high-temperature calibrated bimetals, heat-resistant resins, and apply derating factors. We recommend consulting our technical team to match the breaker to your operating temperatures.
$I_{cu}$ is the maximum short-circuit current a breaker can interrupt safely twice without permanent damage. $I_{cs}$ is the maximum current it can interrupt and continue operating normally afterward. We design our breakers with $I_{cs} = 100\% I_{cu}$ to ensure reliable operation under demanding fault conditions.
Yes, we manufacture dedicated DC circuit breakers, including the ARM6DC series, designed for solar applications up to 1,500VDC. These units feature specialized arc-extinguishing systems to handle the unique demands of high-voltage direct current.
Our products are tested in our certified labs and by third-party bodies to meet IEC 60947-2 standards. We hold CE, CB, and RoHS certifications to ensure seamless compliance for international installations.
Complete your system designs with our extended catalog of circuit breakers and safety interlocks.
AceReare
