Explore our elite selection of high-performance Molded Case Circuit Breakers (MCCB) and Air Circuit Breakers (ACB) direct from China's leading ODM factories.
In the contemporary arena of global electrification, the term "One Breaker" denotes the crucial integration of core electrical protection components under one unified system—designed to secure industrial facilities, smart commercial complexes, and municipal power distribution grids. As urbanization accelerates and power consumption structures grow increasingly complex, modern energy grids are highly susceptible to surge currents, phase faults, and destructive short circuits. Molded Case Circuit Breakers (MCCB) and Air Circuit Breakers (ACB) have transitionally graduated from passive protection units into intelligent, communicable components that represent the vital shield of our smart grid future.
Globally, the industrial demand for circuit breakers is driven by two main trends: the transition of digital networks toward edge computing datacenters, and the integration of large-scale green energy resources (solar photovoltaics, wind energy, energy storage systems). Modern industrial installations require circuit breakers capable of operating at elevated voltages (such as AC 800V or DC 1500V) and showing extreme breaking capacities up to 200kA. Consequently, global buyers are searching for factories that possess robust structural engineering capabilities, advanced manufacturing automation, and a long-term supply chain record.
Founded in 2015, Acereare Electric operates through its two wholly-owned subsidiaries, RuiRui Electric and KeRui Electric. We represent an industry-leading original equipment manufacturer (OEM/ODM) built upon over 20 years of craftsmanship inherited across two generations of electrical engineering specialists.
By integrating R&D, sophisticated structural parts processing, and automated final assembly, we rank at the forefront of China's professional circuit breaker industry. We are recognized as strategic partners to nearly 100 domestic and international premium industrial clients.
R&D Engineers
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Annual Sales (RMB)
The supremacy of Chinese circuit breaker manufacturers on the global stage is not merely a product of labor optimization, but rather the result of a highly integrated, vertically consolidated industrial ecosystem. Factories like Acereare manage the entire production cycle within a centralized digital network. Our facility integrates six advanced processing technologies, encompassing precision metal stamping, thermosetting injection molding (DMC/BMC), silver-alloy contact welding, and automated calibration.
Through the deployment of Enterprise Resource Planning (ERP), Product Lifecycle Management (PLM), Business Intelligence (BI), and Manufacturing Execution Systems (MES), our production process is digitized. This digital infrastructure ensures trace-level transparency for every single contact terminal, magnetic coil, and thermal bimetallic strip. Our ability to supply custom configurations and maintain rapid delivery cycles guarantees that international clients remain resilient against volatile supply chain disruptions.
One-Stop Service utilizing six kinds of processing technology, high-precision automated production, and more than 10 manual/automated testing lines.
Over 50 R&D engineers with 5+ years of experience specialized in 3D modeling, part layout, and 50+ annual research projects.
Two massive production sites coordinate under ERP and U8 software management, assuring optimal component supply and rapid system delivery.
Over 150 testing instruments managed by 20+ QC inspectors, integrated with PLM/BI/ERP/MES systems for end-to-end quality tracing.
Engineered to meet international industrial standards and cover wide-ranging electrical distribution criteria.
The ARW1 series intelligent Air Circuit Breaker is applicable to AC 50Hz/60Hz distribution networks with a rated operational voltage of 690V and below, spanning rated currents from 400A to 6300A. It features intelligent, high-precision selective protection profiles to improve power supply reliability.
Equipped with standardized, open communication protocols, the ARW1 facilitates the core smart functions of remote control, remote adjustment, remote sensing, and remote signaling, matching the advanced automated requirements of modern control centers.
Custom circuit breaker modifications engineered to survive extreme operations and maintain rigorous stability.
Utilizes advanced low-temperature structural polymers and specialized non-freezing mechanical lubricants. Bimetallic elements and micro-tripping components are enhanced with specialized thermal coatings to prevent mechanical freezing or response delays in sub-zero polar or high-latitude setups.
Corrosion protection optimized for marine vessels, seaside docks, and coastal power terminals. Complete units endure a 72-hour continuous salt spray chamber test, while core internal mechanical modules withstand a 48-hour component level check to safeguard internal components against humid, high-saline marine environments.
At high altitudes, thin atmospheric density degrades convective cooling and dielectric insulation. We apply high-altitude coefficient calculations to adjust creepage margins and operational thresholds. High-voltage structures are modified to ensure sustained insulation parameters without arc flashing.
Designed for compact, safe integration inside domestic distribution boards. These circuit breakers deliver lightning-fast fault isolation (under 10 milliseconds) to shield consumer electronic assets, high-power household devices, and HVAC utilities from standard short circuits or circuit overloads.
Engineered with heavy-duty heat-dissipating copper assemblies and premium thermal insulation casings. Our complete system designs undergo constant-temperature testing at 55°C within specialized thermal chambers, ensuring reliable current rating characteristics in hot deserts and steel-rolling mills.
Smart MCCBs integrated with edge-computing microcontrollers, high-accuracy metering chips, and fieldbus communication modems. They actively monitor current, voltage, active power, and grid harmonics, providing real-time data backbones for automated substations and smart city initiatives.
Watch our manufacturing processes, including automated calibrations, precision thermal testing, and raw material stamping lines.
Empowering global electrical brands with customized manufacturing, design, and testing protocols.
Analyzing technical demands, loads, poles, and breaker classes.
Detailing engineering schemas and customized trip layouts.
Signing terms, lead-times, and price structures.
Initiating stamping, moulding, and auto calibration loops.
Quality inspections followed by sea/air shipping setups.
Rigorous laboratory inspections guarantee compliance with international safety protocols.










Essential answers to critical engineering, installation, and procurement questions for global buyers.
High-performance heavy-duty breakers and structural components engineered for global system builders.