Explore our premium ARXM3 molded case circuit breakers and dedicated protective accessories engineered for robust electrical systems.
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 component engineering. With over 20 years of craftsmanship inherited by two generations, Ruiru 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 Six kinds of Processing Technic, High precision production equipment and testing instruments, More than 10 manual and automated production lines.
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. 50+ research and development projects per year.
Owning two factories to expand the production of components and complete machines. Integrate management by linking various processes and departments through ERP and U8 software.
A rigorous and multi-step quality inspection process. Owning its own laboratory to test the quality of parts, with more than 150 sets of testing instruments and over 20 inspectors. Quality is closely managed via PLM/BI/ERP/MES integration.
Providing the critical information gain required by electrical designers and procurement managers to understand high-reliability breaker construction.
The ARXM3 series thermal-magnetic molded case circuit breakers are engineered to meet the highest performance standards under severe operations. While standard manufacturers limit testing to bare minimum parameters, Acereare focuses on the metallurgical integrity of the dynamic contact assemblies. Our contact tips utilize premium Silver-Nickel (AgNi) and Silver-Tin Oxide (AgSnO2) alloys, preventing contact welding during high short-circuit faults up to 200kA.
Every ARXM3 factory production run integrates precision-stamped bimetallic strips for reliable time-delayed thermal protection. Our bimetal elements are calibrated automatically on computer-controlled injection lines to eliminate human assembly tolerance errors, ensuring standard-compliant trip profiles across the entire current range (from 63A to 800A).
The magnetic trip unit is equipped with an optimized electromagnetic coil that responds instantaneously to short circuits. This rapid actuation drives the contact arm to open within milliseconds, forcing the electrical arc into high-efficiency arc chutes lined with cooling grids. This design maintains low transient voltages and maximizes the longevity of your main distribution panels.
Leveraging geographical clusters and in-house component fabrication to secure uninterrupted supply chains and cost advantages.
Operating within the key low-voltage electrical industrial cluster of China provides immediate access to premium raw copper, engineering plastics, and surface-treatment specialists. This dramatically reduces material transit times and lowers procurement costs.
Unlike factories that merely assemble outsourced components, Acereare performs metal stamping, thermosetting injection molding, contact welding, and calibration in-house. This gives us complete control over quality and delivery schedules.
All materials and sub-assemblies are tracked via ERP and U8 software, integrated with real-time MES execution systems. This guarantees 100% traceabilty of components, from base copper coil to the finished, serial-numbered circuit breaker.
How the ARXM3 and associated breakers perform in the world's most demanding physical environments.
We use low-temperature resistant materials, apply specialized low-temperature lubricating oil, treat structural parts with thickened coatings, and support every product with a low temperature test report of -40 ℃.
We conduct salt spray tests, performing 72 hours for the complete machine and 48 hours for semi-complete machines. The MCCB resists the corrosive effects of humid ocean air, ensuring stable operation in docks, ships, and coastal systems.
At altitudes exceeding 2000m, thin air reduces heat dissipation and dielectric insulation. We provide high-altitude derating tables and engineering adjustments to recalibrate breaking performance and threshold current levels.
MCCBs are widely used in commercial complexes and household appliances to protect circuits from overload and short-circuit faults. They deliver space-saving footprints, absolute mechanical safety, and high operational reliability.
Using high-temperature resistant thermoplastics and insulated controller coatings, we prevent degradation. Our copper and iron parts are fully treated for moisture and corrosion, validated in our 55 ℃ constant-temperature chamber.
Our intelligent MCCBs provide advanced protection, communication, high-precision metering, and edge computing. Supporting industrial protocols (Modbus, RS485), they establish a strong foundation for automated IoT energy management.
A good supplier assists you to quickly occupy the target market, gain a good reputation for your brand, and secure stable long-term benefits.
For global engineering projects and distribution networks, purchasing from an ARXM3 factory requires absolute certainty regarding localized safety standards. Our manufacturing workflow complies with international design rules. Every ARXM3 breaker complies with IEC/EN 60947-2, CE, and CB certifications, allowing seamless integration into electrical panels worldwide.
To support international buyers, we provide exhaustive documentation localization. This includes bilingual wiring schematics, technical data curves (I2t curves, temperature correction tables), and full compliance declarations. Our dedicated export logistics team ensures prompt clearance, mitigating delivery risks for industrial contractors.
For long-term distribution agreements, we assist partners with obtaining localized national approvals (such as UL, SASO, SABS, or EAC). We supply certified test laboratory documents and host audits in our state-of-the-art testing facilities.
Acereare Electric designs and manufactures a wide array of high-quality circuit breakers with premium reliability.
ARW1 series intelligent type ACB is applicable to the AC 50Hz/60Hz distribution network with a rated voltage of 690V and below, and a rated current from 400A to 6300A. The ACB features advanced digital protection capabilities and high-precision selective protection to optimize power supply reliability. Equipped with standardized open communication interfaces, it seamlessly executes four remote functions: remote sensing, remote adjustment, remote control, and remote signaling to satisfy modern SCADA and automated electrical systems.
From initial inquiry and parameter optimization to production supervision and global logistics, we guide you through every milestone.
We analyze project currents, voltage limits, and environmental variables to recommend matching circuit breakers.
Our R&D engineering team designs custom layouts, adjusting current curves and terminal extensions.
We finalize technical agreements, validation timelines, certifications, and terms.
Breakers are assembled and run through multi-point automatic calibration and calibration tests in our lab.
Securing custom export packaging, handling customs clearance, and organizing maritime shipping.
Expert answers to the most common engineering and procurement questions regarding molded case circuit breakers.
Icu (Ultimate Short-Circuit Breaking Capacity) is the maximum fault current that the circuit breaker can safely interrupt without causing terminal destruction. Ics (Service Short-Circuit Breaking Capacity) defines the fault current level at which the breaker can successfully clear a fault and remain operational. For high-end applications, an Ics value equal to 100% of Icu ensures the breaker does not require replacement after handling severe faults, reducing system downtime and replacement costs.
At elevations above 2000 meters, low air density decreases the convective cooling capacity, causing temperature rises. In addition, the reduced dielectric strength of air lowers the insulation performance. To compensate for these variables, both the rated operational voltage (Ue) and the rated current (In) must be derated. At 3000m, the current derating coefficient is typically 0.96, and the voltage is derated to 0.88. Our engineers provide specific high-altitude adjustment curves based on your installation height.
Thermal-magnetic trip units (like the standard ARXM3) are highly reliable, economical, and immune to electromagnetic interference, making them ideal for commercial buildings, standard motors, and low-voltage distribution lines. Electronic trip units (like the ARM3E or ARM5E) integrate microprocessors to provide adjustable Long-time, Short-time, Instantaneous, and Ground-fault protection (LSIG). Choose electronic models when precise zone coordination, remote power monitoring, and custom current curve profiles are required.
A 3-pole MCCB is used in three-phase balanced systems where a neutral wire is not distributed or does not require isolation. A 4-pole MCCB features a dedicated neutral pole (N). It is essential in systems with unbalanced loads or significant harmonics, where neutral current is present, or where system design mandates isolation of the neutral pole to prevent ground loop currents during maintenance. We supply 4P configurations with optional neutral protection states (e.g., neutral with/without overcurrent protection).
Our quality assurance program is integrated with PLM, ERP, and MES software. In our test lab, breakers are subjected to dielectric strength tests, mechanical endurance tests (exceeding 10,000 operation cycles), and thermal-magnetic calibration audits. Calibration benches use low-voltage current injection to verify that the delay and instantaneous trip thresholds are within IEC 60947-2 limits before packaging.
Explore our advanced electronic control circuit breakers, intelligent remote devices, and high-amp air circuit breakers.
We persist in maximizing customer benefits, satisfaction, and long-term business success. Feel free to contact our engineering team for customized specifications and volume pricing.
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