Direct supply from state-of-the-art Chinese manufacturing facilities. Fully compliant with international high-voltage PV safety standards.
Analyzing global architecture trends, engineering parameters, and systemic efficiencies in utility-scale solar projects.
The global renewable energy sector is experiencing a rapid technological transition from traditional lower-voltage levels to higher-voltage topologies. In commercial and utility-scale photovoltaic (PV) solar projects, increasing the system operating voltage is key to lowering the Levelized Cost of Energy (LCOE). While DC architectures have largely consolidated at 1500V, the AC distribution grid side is shifting from standard 400V or 690V systems to 800V AC. This change optimizes string inverter performance, minimizes line losses, and reduces overall copper cable usage.
Implementing an 800V AC network presents unique electrical engineering challenges. Operating at higher voltages increases the severity of electrical faults, requiring faster arc extinction, higher dielectric insulation performance, and reliable fault clearing. Consequently, the demands placed on 800V Molded Case Circuit Breakers (MCCB) are extremely high. These safety components must withstand continuous thermal stress, interrupt high prospective short-circuit currents, and maintain absolute structural integrity under harsh environmental conditions.
When selecting circuit protection for 800V AC solar systems, project designers focus on key performance indicators (KPIs) to ensure long-term system uptime and safety:
Founded in 2015, Acereare Electric operates two wholly-owned subsidiaries: RuiRui Electric and KeRui Electric. Drawing on over 20 years of craftsmanship inherited across two generations, our team offers comprehensive engineering expertise and technical experience to the low-voltage electrical protection market.
We are a professional original manufacturer integrating R&D, production, and sales. We specialize in Molded Case Circuit Breakers (MCCB), Air Circuit Breakers (ACB), and premium-grade internal/external components. Acereare has established strategic partnerships with nearly 100 high-end global industrial clients, serving as a trusted ODM and OEM partner for power systems worldwide.
How we ensure quality, supply chain reliability, and technical innovation for our partners.
We provide a complete one-stop service utilizing six distinct processing techniques. Our facility is equipped with high-precision production machinery, testing instruments, and over 10 manual and automated production lines.
Our team includes over 50 R&D engineers, each bringing more than 5 years of industry experience. They are highly proficient in 3D modeling for custom parts, molds, and complete assemblies, executing over 50 projects annually.
With two manufacturing facilities dedicated to components and finished machines, we ensure stable supply chains. We manage all processes and departments through integrated ERP and U8 management systems.
We execute a multi-step quality control process in our dedicated in-house laboratories. Equipped with over 150 testing instruments and staffed by 20+ QC inspectors, we manage quality via PLM, BI, ERP, and MES software.
Designed and certified to perform in challenging environments worldwide.
Designed for sub-zero installations, we utilize low-temperature resistant structural materials and specialized lubricants. Component metal elements feature thick, protective coatings. Our equipment is verified by low-temperature test reports down to -40°C.
We perform rigorous salt spray testing, running 72 hours for complete machines and 48 hours for semi-complete components. Our MCCBs are designed to withstand humid, saline coastal air. They are widely used in dock power distribution systems and maritime solar arrays to protect critical motors and transformers from corrosion-related electrical faults.
In environments exceeding 2000 meters above sea level, reduced air density affects dielectric insulation and thermal dissipation. Our engineering team provides high-altitude derating tables and adjusted electrical parameters to ensure safe, stable operation under low-pressure conditions.
Our circuit breakers are widely integrated into household appliances and commercial building systems, providing protection against circuit overloads and short circuits. These compact units are designed for flexible, reliable installation in standard distribution panels.
Our units use high-temperature resistant thermoplastics and insulation coatings. Copper and iron internal parts are treated to resist moisture, salt spray, and heat. Performance is validated by testing inside our constant temperature chamber at 55°C.
Equipped with integrated communication, metering, protection, and edge-computing capabilities, these units isolate faults while providing high-precision real-time telemetry. They support multiple industrial protocols, providing a foundation for smart grid integration.
Explore our complete product portfolio, designed for low-voltage power distribution, industrial control, and PV systems.
Our R&D division has developed multiple series of circuit breakers to meet varying application requirements. Below is an overview of our key product lines:
Standard molded case circuit breakers for reliable industrial power distribution.
Earth leakage protection circuit breakers with high residual current sensitivity.
Thermal-magnetic type circuit breakers offering robust protection for power systems.
Electronic type adjustable circuit breakers with integrated LSIG trip units.
High breaking capacity circuit breakers for heavy industrial power grids.
Next-generation smart circuit breakers featuring intelligent telemetry capabilities.
Intelligent ACB systems designed for 690V systems, supporting currents up to 6300A.
High-voltage utility incoming breakers designed for automated power distribution.
Precision stamping components, connection plates, and internal auxiliary contacts.
The ARW1 series intelligent Air Circuit Breaker is designed for AC 50Hz distribution networks with rated voltages up to 690V and rated currents from 400A to 6300A. It provides high-precision selective protection to improve overall grid reliability. Equipped with standard open communication interfaces, the ARW1 supports four remote functions: remote sensing, remote adjustment, remote control, and remote signaling. These capabilities allow the system to meet the remote monitoring and control requirements of automated control centers.
We provide full-service customization to help establish and protect your brand equity.
Customize products with your logo to build brand awareness. We utilize high-quality raw materials to protect your brand's reputation for quality, and provide quick sample fabrication to accelerate new product releases in your target markets.
We handle product mold design and functionality development, and coordinate international testing and certification pathways (with costs refundable based on order volume). We guarantee a 24-hour response window, acting as your overseas production facility.
We offer laser printing for authorized trademarks, custom packaging (both inner and outer boxes), and customizable product catalogs. Flexible order volumes are available to accommodate different market phases.
We coordinate all phases of manufacturing internally. From initial customer consulting to final delivery, we follow a strict quality inspection protocol at every stage of the process.
We review your specific voltage, current, and environmental requirements to recommend matching products.
Our engineers provide CAD drawings, derating curves, and certification roadmaps tailored to your application.
We finalize customization settings (e.g., trip units, terminals, enclosures) and sign the supply agreement.
We manufacture components and complete units under our MES/ERP systems, conducting electrical and mechanical testing.
We arrange international shipping, providing all necessary customs documentation and compliance certificates.
Our manufacturing and quality systems conform to global compliance and safety standards.
Technical and procurement advice for engineering professionals and purchasing agents.
By raising the AC operating voltage from 400V or 690V to 800V AC, PV systems can reduce the output current for the same power capacity. This lowers copper losses (calculated as I²R) and permits the use of smaller-gauge AC cabling, helping to reduce balance of system (BOS) costs in utility-scale installations.
At altitudes above 2000 meters, lower air density reduces both dielectric strength and convective thermal cooling. To prevent overheating or dielectric breakdown, circuit breakers must be derated for voltage and current. We provide specific altitude derating tables for all our MCCB series to ensure safe operation under these conditions.
We perform salt spray testing in our laboratories—running 72 hours for complete machines and 48 hours for semi-complete components. This verifies the corrosion resistance of contacts, mechanisms, and enclosures in high-salinity and high-humidity environments.
Yes. Several of our breaker lines, including the ARM3E and ARM6 series, can be equipped with electronic trip units (LSIG) and communication interfaces. These support remote sensing, adjustment, control, and signaling to integrate with SCADA systems and smart grids.
We offer full-service customization, including custom housing molds, customized terminal connection plates, auxiliary contact configurations, custom logo printing, and specialized packaging options designed for industrial distributors and system integrators.
Our components are manufactured under ISO-compliant processes to ensure reliability and compatibility.
AceReare
