Founded in 2015, Acereare Electric has rapidly established itself as a premier original manufacturer specializing in Molded Case Circuit Breakers (MCCB), Air Circuit Breakers (ACB), and structural electrical parts. Integrating advanced R&D, high-precision production, and global supply networks, we operate two wholly-owned subsidiaries: "RuiRui Electric" and "KeRui Electric". Our operations span two generations of technical heritage over 20 years, making our factories the top-ranking ODM/OEM hubs in China.
With a highly skilled workforce of over 400 workers, 50 dedicated R&D engineers, and an annual turnover exceeding 250 million RMB, we offer comprehensive power management components. Our core focus is simple: to supply high-reliability, low-voltage distribution components to industrial partners, utilities, and commercial grid projects globally.
In the modern electrical distribution sector, the demand for Molded Case Circuit Breakers (MCCBs) and high-quality MCCB parts is growing rapidly. Driven by the green energy transition, smart grid development, and the electrification of transportation, global engineering departments require components that guarantee reliability, safety, and operational longevity.
An MCCB is a complex system of stampings, custom plastic housings, contacts, and trip units. Substandard parts lead to premature mechanical failure, arc flashes, and contact erosion under short-circuit faults. Strategic buyers and OEM manufacturers choose direct sourcing from established, certified manufacturers to avoid high lifecycle costs and safety issues. Choosing direct manufacturing sourcing eliminates intermediaries, ensures raw material traceability, and guarantees high breaking capacities (up to 200kA at 400V/690V).
For high-latitude environments and cold chain infrastructure, we supply custom components designed with specialized low-temperature lubricants and high-ductility steel stampings. Supported by certified low-temperature test reports, our MCCBs operate down to -40°C.
Our marine and coastal dock power system products feature electroplated assemblies that undergo up to 72 hours of salt spray testing for complete machines and 48 hours for sub-assemblies. This level of protection prevents rust and ensures operational safety near marine environments.
When operating above 2000m, standard air insulation becomes less effective and heat dissipation decreases. We design custom MCCB assemblies with increased air clearances and provide accurate de-rating factors, ensuring safety at high altitudes.
In residential applications, safety and space constraints are critical. Our components offer fire-resistant materials and small profiles, ensuring household electronics remain safe from grid overloads and short circuits.
For high-temperature industrial locations, such as steel mills or desert solar farms, we use materials rated for high temperatures. Thermal insulation barriers on our control elements ensure stable protection in environments up to 55°C.
Integrating communication modules, energy measurement chips, and protection trip units, our intelligent MCCB components support smart grids. They monitor energy consumption and allow remote control for microgrid applications.
Our branding options help you stand out. We provide custom laser marking, tailored authorized packaging, and bespoke catalog development. Small order volumes are supported to help you test new products in local markets with lower risk.
We handle tooling creation, functional performance modifications, and global certification testing (with costs refundable based on volume). Our engineers provide responses within 24 hours, acting as your trusted overseas manufacturing partner.
Our R&D team can develop custom products from initial sketches. Working with 3D models of parts, molds, and complete assemblies, we complete over 50 projects each year to keep our clients competitive in their markets.
We analyze your requirements and recommend suitable designs.
Our engineers develop customized circuit designs.
We finalize target cost, specifications, and lead times.
We manufacture, assemble, and run quality checks on our smart lines.
We dispatch your products, handling export customs and logistics.
Standard thermal-magnetic MCCBs for reliable power distribution. Available in multiple frame sizes up to 1250A.
Earth leakage circuit breakers offering dual overload/short-circuit protection and residual current detection.
Heavy-duty industrial thermal-magnetic circuit breakers rated for 400V/690V, ranging from 63A to 250A.
Electronic circuit breakers with adjustable settings, featuring built-in LSIG trip units for high-tier grids.
High breaking capacity models (up to 200KA, Icu=Ics), suitable for 400A to 630A applications.
Our latest MCCB line, featuring advanced arc suppression and improved heat management.
Intelligent type Air Circuit Breakers (ACB) designed for currents from 400A to 6300A, featuring open communication interfaces.
High-capacity Air Circuit Breakers designed to protect large main switchboards in critical facilities.
Precision-engineered stamping components, copper busbars, and custom housings manufactured to your specifications.
The global energy sector is moving quickly toward decarbonization and digital monitoring. Electrical switches are evolving from simple mechanical protectors into smart monitoring points within connected microgrids. Acereare Electric is actively investing in new engineering technologies to support this transition.
We are transitioning our production lines to use recyclable, halogen-free thermoplastics and RoHS-compliant contacts. These materials reduce the carbon footprint of our manufacturing process and help our clients meet local environmental regulations.
Future iterations of our MCCB components will feature integrated current and voltage sensors. By combining electronic trip units with edge-computing capabilities, these units will communicate directly with energy management software, helping facilities optimize power use and schedule maintenance.
Integrating zero-halogen resin housings and silver-tin oxide contacts across all standard product lines to meet strict environmental rules.
Developing clip-on shunt trip units, auxiliary switches, and smart modbus modules that fit seamlessly into existing panels.
Releasing our next-generation electronic MCCBs with high-accuracy metering and predictive failure diagnostics for microgrid operators.
We run a rigorous, multi-step quality control process. Using over 150 testing instruments managed by 20+ inspectors, we track quality from raw materials to final packaging via PLM, BI, ERP, and MES software.









