Explore our high-performance circuit protection lines directly manufactured under strict quality standards.
Deep-dive engineering analysis on bimetallic thermal overcurrent protection and instantaneous electromagnetic short-circuit interruption.
Molded Case Circuit Breakers (MCCBs) integrating thermal-magnetic release mechanisms are critical backbones of electrical grid safety in modern industrial systems. By combining two distinct operating methods, they guarantee multi-layered protection:
Standard circuit breakers compromise on service breaking capacity ($I_{cs}$), limiting it to 50% or 75% of the ultimate limit ($I_{cu}$). Acereare engineering eliminates this risk. Our high-breaking series delivers a full 100% rating: $I_{cu} = I_{cs}$ up to 200kA.
This standard guarantees that after a maximum fault current interruption, the MCCB maintains its mechanical alignment, dielectric strength, and contact resistance without internal component replacements. High $I_{cu}$ is achieved using optimized arc chute structures, heavy-duty silver-graphite moving contacts, and robust arc-extinguishing chambers that rapidly split and cool heavy electrical arcs.
| Series Model | Rated Current Range (In) | Operational Voltage (Ue) | Ultimate Breaking Capacity (Icu) | Service Breaking Capacity (Ics) | Poles |
|---|---|---|---|---|---|
| ARM1 / ARXM3 Series | 63A - 250A | 400VAC / 690VAC | 50kA - 100kA | 100% Icu | 3P / 4P |
| ARM5 Double-Breaker | 400A - 630A | 400VAC - 800VAC | 150kA - 200kA | 100% Icu | 3P / 4P |
| ARM5HU High Voltage | 250A - 400A | 800VAC - 1140VAC | 50kA - 85kA | 100% Icu | 3P |
| ARM6DC Photovoltaic | 125A - 250A | 700VDC - 1500VDC | 35kA - 50kA | 100% Icu | 2P / 4P |
Tailored engineering frameworks addressing harsh environments, high electrical demands, and intelligent grid transitions.
With solar installations moving from 1000V up to 1500V DC, systems require specialized DC isolation. Our ARM6DC series is designed with extended contact gaps and specialized magnetic blowouts to extinguish DC arcs without natural zero-crossings. Ideal for utility-scale solar combiners and inverters.
Dockyards, offshore rigs, and chemical processing facilities expose electrical systems to salt spray, humidity, and corrosive elements. We treat internal components with reinforced galvanic coatings and carry out extensive 72-hour salt spray tests to prevent electrical failure or mechanical binding.
For operations located in high altitude regions exceeding 2,000 meters, thin air reduces heat dissipation and insulation capability. Acereare delivers custom-designed circuit breakers calibrated with professional high-altitude derating data, ensuring stable performance up to 5,000 meters.
Acereare's manufacturing footprint, historical legacy, and advanced software-backed resource management.
Founded in 2015, Acereare Electric is built upon a 20-year multi-generational craft inheritance in circuit breaker manufacturing. Operating two wholly-owned subsidiaries, RuiRui Electric and KeRui Electric, we have grown into one of China's top ODM/OEM low-voltage electrical equipment manufacturers.
We supply international markets with highly reliable components and assembled units, building long-term partnerships with over 100 enterprise clients globally. Our production lines maintain a balance between manual detailing and robotic assembly, guaranteeing stability even during high-volume production runs.
To secure reliability across thousands of configurations, our factories utilize an integrated digital network:
Dedicated designers with over 5 years of experience in 3D mold modeling and structural design.
Operating more than 10 manual and automated assembly lines across our manufacturing sites.
Consistent financial growth proving international market demand and customer trust.
How our ISO-certified facilities and testing laboratories guarantee safety standards for global grids.
Compliance is essential in modern power systems. Acereare products are subjected to independent testing routines to verify compliance with international electrical standards, including IEC/EN 60947-2 (for circuit breakers) and GB/T 14048.2. Our inventory carries international test reports and certificates, ensuring seamless local licensing and utility approvals in Europe, South America, Asia, and the Middle East.
Our double-breaker ARM5 design and high-voltage ARM5HU series have undergone short-circuit testing to verify their insulation performance under repetitive fault events.
Our quality assurance division operates its own testing lab equipped with over 150 diagnostic systems. Over 20 specialized inspectors supervise testing across multiple manufacturing stages:
Acereare's R&D focus on IoT communication, high-voltage green energy, and precision metering.
Modern electrical infrastructure requires real-time monitoring. Our technology roadmap focuses on combining thermal-magnetic trip units with electronic telemetry systems. Using protocols like Modbus, CAN, or Ethernet, smart MCCBs monitor current values, phase balance, contact wear, and local temperature, communicating this telemetry back to SCADA systems.
This approach transforms a standard safety device into an active smart grid node, enabling predictive maintenance and reduction of operational downtime.
We are currently developing next-generation arc-chutes designed to minimize contact erosion while utilizing halogen-free, non-toxic materials in the structural plastic shells. By optimizing the thermodynamic flow within the breaker chassis, we aim to accelerate arc extinguishment, reduce transient energy, and decrease greenhouse gas emissions during fault scenarios.
Engineered variations designed to maintain performance under severe operational parameters.
For installations in cold regions, we use specialized low-temperature greases and thickened protective platings. Our products are backed by certified laboratory test reports down to -40°C, ensuring moving parts do not seize up in freezing climates.
To resist coastal atmospheric corrosion, Acereare MCCBs pass rigorous 72-hour complete machine and 48-hour semi-assembly salt spray tests. This guarantees long-term reliability in marine docks, water purification facilities, and high-humidity sites.
At altitudes above 2000m, low air pressure reduces cooling efficiency and dielectric strength. Our technical department provides detailed altitude derating tables to recalculate electrical loads, keeping power systems safe even in mountainous locations.
Providing protection for sub-distribution systems in office buildings and residential complexes. These MCCBs guard appliances against short-circuits and overloads, combining easy installation with high operational reliability.
We build our switches using heat-resistant plastics and treat metallic connectors with specialized heat-barrier layers. We verify performance inside our dedicated 55°C constant-temperature chambers to prevent nuisance tripping in hot climates.
These advanced units feature current, voltage, and power monitoring capabilities alongside grid protection. Supporting various industrial bus protocols, they serve as hardware components for energy management in smart distribution systems.
A structured outline of our product development cycle, from consulting to volume manufacturing.
Increase market visibility with tailor-made corporate labeling. We offer custom laser marking on structural cases, brand-aligned product packaging, and customized catalog preparation to help partners develop their domestic markets.
Leverage our advanced factory assets for your custom product runs. We offer refundable mold construction, functional unit modifications, international compliance verification, and 24-hour engineering support.
Collaborate with our R&D group on custom designs. We develop customized breaker internals and layout profiles to fit compact panels, offering low minimum order quantities (MOQs) for specialized configurations.
Reviewing grid parameters and determining application-specific product details.
Custom engineering of breaker internals, mounting footprints, and enclosures.
Finalizing commercial terms, delivery lead times, and warranty structures.
Assembly monitored via MES and ERP tracking systems for quality assurance.
Safely packed units delivered worldwide with full custom export documentation.
Explore auxiliary contacts, air circuit breakers, and mechanical components supporting our protection systems.
Technical guidance to assist design engineers and purchasing managers with circuit breaker configuration.
AceReare
