Explore our specialized high-capacity circuit breakers, designed for solar power, smart grid metering, and heavy-duty manufacturing networks.
Founded in 2015, Acereare Electric operates through two wholly-owned manufacturing subsidiaries: RuiRui Electric and KeRui Electric. We specialize in the integrated research, development, production, and sales of professional Molded Case Circuit Breakers (MCCB), Air Circuit Breakers (ACB), and advanced mechanical switchgear components.
Inheriting over 20 years of technical expertise passed down through two generations of specialist designers, we operate as a top-tier ODM and OEM partner. Our comprehensive production matrix, solid engineering foundations, and rigorous quality assurance protocols put us at the forefront of China's electrical apparatus industry. We serve complex grid infrastructure projects, utility-scale renewable systems, and automated production facilities globally.
Modern electrical power systems operate in high-load, dynamic environments where short-circuit protection and prompt fault isolation are critical. Fixed Type Circuit Breakers remain the standard configuration for localized industrial control cabinets, central switchboards, and distribution systems where space utilization and structural integrity are key requirements. Unlike draw-out models, fixed type breakers are directly bolted or rail-mounted within the switchboard structure. This direct connection creates a rigid mechanical linkage, lowering contact resistance and preventing vibrational misalignment in high-stress installations.
This design is highly valued across global industries like mining, heavy manufacturing, and data centers. It offers continuous performance under severe mechanical stress, thermal expansion, and short-circuit faults. With the rise of renewable energy integration (especially utility-scale photovoltaic systems generating between 800VAC and 1140VAC), fixed type MCCBs and ACBs are crucial for isolating solar inverter arrays and step-up transformer lines. Their solid construction prevents arcing faults under higher system voltages.
The global demand for heavy duty electrical protection has shifted toward equipment capable of handling higher continuous currents, elevated operating voltages, and higher fault limits. Today, switchboard builders and EPC contractors face supply chain bottlenecks, rising copper prices, and tougher compliance standards (like IEC 60947-2, UL 489, and CE certifications). These market factors require circuit breaker factories to maintain lean, vertically integrated manufacturing models.
At Acereare Electric, we tackle these challenges with a robust supply footprint. By utilizing advanced silver-alloy contacts, premium arc chutes, and precision-stamped internal components within our dedicated component plant, we guarantee consistent pricing and component quality. Our factories feature automated winding setups and computerized calibration stations, ensuring that every thermal-magnetic and electronic trip unit is calibrated to its exact time-current performance curve before dispatch.
To optimize power system reliability, designers must look past surface-level specifications and evaluate the design of the breaker's internal systems. Below is a summary of the technical specifications of our key breaker lineups:
Our ARM5 and ARXM3 series use thermal-magnetic trip units to protect against overloads and short circuits. The adjustable bimetallic strip manages thermal overloads, while the electromagnetic coil isolates short-circuits instantly. For smart grid operations, our electronic trip units (featured in the ARM3E series) use microprocessors to monitor true RMS current values. This guarantees precise adjustment options, eliminating the impact of high ambient temperatures on tripping performance.
The ARM6Z-250-3300 series includes an integrated liquid crystal display (LCD) and remote-control features. By using Modbus-RTU, Profibus, or Ethernet protocols via an RS485 interface, the breaker works seamlessly with plant-wide SCADA systems. Industrial operators can track voltage, load current, phase balance, and fault logs in real time. This enables predictive maintenance strategies, helping to prevent costly unplanned downtime.
During high-current faults (up to 200kA breaking capacity in ARM5 models), arc suppression is critical for safety and equipment life. Our breakers use modern grid arc-extinguishing chambers made from high-strength gassing plastics and dynamic steel plates. These chambers split, cool, and extinguish the arc flash in milliseconds, minimizing the let-through energy (I²t) and protecting downstream cables and machinery.
Our product portfolio ranges from compact components to large-scale intelligent breakers, ensuring cover for all industrial applications:
Take a look inside our high-volume automated testing floor and assembly facilities, showing how we manufacture, calibrate, and ship our premium switchgear components.
Our systems are engineered to withstand extreme climates, high altitudes, and harsh atmospheric environments across global industrial sites.
For installations in sub-zero locations, standard plastics and lubricants can turn brittle or freeze, causing mechanical failure. We use low-temperature resistant polycarbonates, specialty low-temp lubricants, and thicker zinc coatings. Our breakers are fully certified with laboratory test reports demonstrating reliable performance down to -40℃.
Humid, salt-heavy sea air accelerates corrosion on critical copper components. We run rigorous salt spray testing in our labs—typically 72 hours for fully built units and 48 hours for core components. Our MCCBs are widely used in marine ports and shipyard power cabinets to protect heavy motors and transformers from moisture-driven faults.
At elevations above 2,000 meters, thinner air reduces both the insulation properties and the cooling capacity of electrical switchgear. To prevent flashovers, we apply precise de-rating factors based on high-altitude correction tables, ensuring long-term insulation reliability and stable operating temperatures in mountain projects.
Safety and flexibility are essential for residential and commercial panels. Our MCCBs protect circuits from overloads and short circuits while maintaining a compact footprint. These systems are designed for easy integration with standard cabinet layouts, reducing installation labor and improving system safety.
In hot manufacturing plants and desert installations, temperatures inside control panels can rise quickly. We use high-temp polymer materials and apply protective coatings to control circuits. Copper and iron components are treated for moisture, salt spray, and corrosion resistance. Our breakers are tested up to +55℃ in constant-temperature chambers to guarantee stability.
Modern smart grids require more than basic overcurrent isolation. Our smart MCCBs feature high-accuracy current transducers, communication modules, and edge-computing processors. These systems monitor real-time power consumption, trace electrical quality, and interface with automated management platforms to support smart industrial networks.
We help global brands, distributors, and engineering networks scale their operations with customized product and design services.
We work with you to establish and grow your market footprint with custom brand options:
Leverage our advanced design resources for high-volume custom manufacturing:
Collaborate with us for full-scope product design, engineering, and manufacturing:
Our ARW1 series intelligent Air Circuit Breaker is designed for high-capacity power distribution networks operating at AC 50Hz, with rated voltages up to 690V and currents spanning 400A to 6300A. The ARW1 includes advanced digital protection controls to ensure precise selective coordination, improving overall system uptime.
Equipped with standardized communication interfaces, the ARW1 supports full remote management: remote sensing, remote adjustment, remote control, and remote signaling. This matches the requirements of automated control systems and smart utility networks.
We streamline project phases from initial technical consultation to global shipping to ensure on-time delivery.
Analyzing grid specifications, local environmental factors, and capacity requirements to recommend the right breaker design.
Adjusting trip settings, sizing terminal extensions, and matching mounting configurations to your switchgear cabinets.
Confirming delivery schedules, final pricing, compliance documentation, and signing commercial contracts.
Processing component stamping, automated assembly, testing, and final quality control checks under PLM and MES platforms.
Packing products in moisture-proof, export-grade crates and arranging shipping with tracking to your site.
Every circuit breaker undergo strict testing in our ISO-compliant facility before dispatch, backed by certified compliance records.
Our quality control processes cover every production stage. We utilize advanced ERP software and MES management platforms to track assembly data in real time. Our on-site testing facility is equipped with over 150 calibrated testing devices, allowing us to perform critical safety tests including dielectric breakdown tests, mechanical endurance cycling, and high-current short-circuit simulations.
As power grids transition toward decentralized renewable sources and digital management, the demand for smart, eco-friendly protection switchgear continues to grow. Acereare Electric is actively developing next-generation solutions to meet these future market needs:
Fixed type circuit breakers are bolted or rail-mounted directly to the switchboard's frame, establishing a solid electrical connection. This design is highly durable and cost-effective, making it ideal for systems with high vibration or space constraints. Draw-out breakers, in contrast, feature a sliding cradle chassis that allows the breaker to be disconnected for servicing without de-energizing the main busbar. While draw-out models offer faster maintenance turnaround, fixed type breakers are more compact and typically have a lower initial capital cost.
At altitudes above 2,000 meters, thinner air reduces both the insulation performance and the cooling efficiency of the breaker. This increases the risk of arc flashover and can lead to higher operating temperatures. In these cases, we apply de-rating factors to lower the maximum working voltage and current capacity, ensuring safe, stable operation under low-density air conditions.
We conduct standardized salt spray chamber testing in our quality laboratory. Finished circuit breakers undergo 72 hours of continuous salt spray exposure, while core sub-assemblies (like contacts and mechanisms) are tested for 48 hours. This ensures our breakers can withstand humid, corrosive coastal and maritime environments without mechanical sticking or contact degradation.
Yes, electronic trip units are highly effective in hot environments. Traditional thermal-magnetic breakers rely on bimetallic strips, which can drift or trip prematurely at high ambient temperatures. Electronic units use current transformers and microprocessors to monitor true RMS current values, keeping the tripping characteristics stable even when cabinet temperatures rise.
Our smart circuit breakers (such as the ARM6Z series) come equipped with RS485 communication ports and support Modbus-RTU. This allows seamless integration with facility SCADA systems. Industrial operators can remotely monitor real-time parameters like phase voltage, load currents, power factors, and trip history, enabling active power management and predictive maintenance.
Icu (Ultimate Short-Circuit Breaking Capacity) is the maximum fault current a breaker can interrupt safely, though it may require servicing or replacement afterward. Ics (Service Short-Circuit Breaking Capacity) is the maximum current a breaker can interrupt and still remain operational. For high-reliability industrial systems, we design our breakers to meet an Ics rating equal to 100% of the Icu (Ics = 100% Icu), ensuring the breaker can safely return to service after clearing a fault.
Browse our selection of heavy-duty switchgear components, manual operators, and adjustable MCCB models.
Whether you need custom branding, specialized technical adjustments, or high-volume factory production, we provide direct engineering support and certified quality standards.
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