Explore our foundational range of circuit protection devices, engineering components, and smart MCCB units engineered for global OEM applications.
Founded in 2015, Acereare Electric stands as a premium original equipment manufacturer integrating state-of-the-art research and development, smart manufacturing processes, and localized international compliance operations. Operating through our two wholly-owned manufacturing subsidiaries—"RuiRui Electric" and "KeRui Electric"—our brand is anchored in over 20 years of generational craftsmanship and specialized engineering expertise in low-voltage and high-voltage DC system safety.
We specialize in the high-volume production of Molded Case Circuit Breakers (MCCB), intelligent Air Circuit Breakers (ACB), specialized photovoltaic DC circuit breakers, and precision internal component stampings. Ranking as one of the leading OEM and ODM design partners in China, our team delivers electrical safety solutions to clean energy projects, smart industrial parks, and global supply chains.
Developing safe circuit breakers for high-voltage photovoltaic systems requires overcoming unique engineering challenges inherent to Direct Current distribution.
Unlike standard Alternating Current (AC) networks, where current naturally passes through zero-voltage points twice per cycle, Direct Current (DC) systems maintain a constant voltage profile. This continuous voltage makes extinguishing electric arcs extremely challenging, particularly during short circuits or isolation events in high-voltage 1000V to 1500V solar systems.
To safely isolate high-energy DC circuits, our specialized PV DC Circuit Breakers use customized magnetic blowouts, extended arc chutes, and heavy-duty contact assemblies. These design features draw the electric arc away from the primary contacts and drive it into the arc-splitter plates for rapid cooling and extinction, ensuring system safety.
Additionally, modern photovoltaic plants are frequently deployed in harsh, remote environments, requiring circuit protection devices that can reliably operate under high ambient thermal levels, extreme ultraviolet exposure, and wide temperature variations.
| Technical Parameter | Standard AC MCCB | Solar DC MCCB (Acereare PV) |
|---|---|---|
| Rated Operating Voltage (Ue) | 400V / 690VAC | 1000V / 1500VDC |
| Arc-Extinguishing Mechanism | Natural Zero-Crossing | Magnetic Blowout & Multi-Grid Chutes |
| L/R Time Constant (Inductive Load) | N/A | ≤ 5 ms / ≤ 15 ms |
| Polarity Sensitivity | Non-Polar | Polarized & Non-Polarized Options |
| Extreme Thermal Limit | -20°C to +40°C | -40°C to +55°C (Extended Derating) |
Our circuit breakers are designed and built to withstand diverse and challenging industrial environments worldwide.
For installations in sub-arctic regions or high-latitude solar arrays, our breakers utilize low-temperature lubricants and specialized structural plastics to prevent embrittlement. They carry verified lab certification proving stable trip curve profiles down to -40°C.
Designed for offshore wind platforms, floating PV islands, and coastal port facilities. These units feature extra-thick electroplated hardware and pass rigorous 72-hour complete machine and 48-hour sub-assembly salt spray test validations to guarantee anti-corrosive performance.
At elevations exceeding 2000m, low atmospheric pressure reduces air density, affecting heat dissipation and dielectric insulation. Acereare provides precise high-altitude derating coefficients to modify operational thresholds and maintain protective reliability.
Our compact MCCB units are widely integrated into domestic solar rooftops, energy storage systems, and EV chargers. They offer high breaking capacity and space-saving dimensions to protect residential environments from overload and short-circuit faults.
Designed to operate in desert solar arrays and steel factories. Internal thermal-magnetic and electronic trip boards feature custom isolation layers, and we perform daily quality testing within our dedicated 55°C constant-temperature chambers to prevent nuisance tripping.
Equipped with built-in remote sensing, data logging, and edge computing. These advanced smart MCCB units support open communication protocols (such as RS485 and Modbus) to provide real-time power telemetry and enable four remote control features within smart grid infrastructures.
Acereare partners with global brands to deliver customized, certified, and quality-assured circuit protection products.
Operating two factories with over 10 manual and automated assembly lines. Our production utilizes ERP and U8 software integrations to synchronize procurement, production, testing, and delivery schedules.
Our team includes over 50 R&D engineers with extensive experience in low-voltage and high-voltage circuit protection. We handle complex parts modeling, mold development, and complete component simulations.
Our in-house laboratories feature over 150 diagnostic instruments and 20 quality inspectors. Quality parameters are monitored across all production stages using PLM, MES, and Business Intelligence systems.
We provide a structured path from product concept to global deployment, helping you bring new electrical products to market quickly and reliably.
Whether you require a custom mechanical layout, specialized current ratings, or specific international compliance certifications, our OEM/ODM workflow is structured to meet your needs:
Our vision for the next generation of safe and efficient electrical distribution components.
As solar energy generation shifts toward higher string voltages and energy storage systems grow larger, power grids require faster, smarter circuit breakers. Acereare's technology roadmap focuses on three main engineering priorities:
Refining our single-pole breaking capability to reduce the footprint of 1500VDC solar combiner boxes, lowering material costs and improving heat dissipation.
Integrating compact current and voltage sensors directly into our breakers to enable local health monitoring and predictive trip analysis.
Developing hybrid mechanical/semiconductor breakers that can interrupt high-voltage faults in milliseconds, virtually eliminating contact wear.
Our factory processes conform to international standards, ensuring consistent, high-performance production quality.
Common technical questions answered by our engineering and product design teams.
Browse our catalog of Air Circuit Breakers, Molded Case Circuit Breakers, and replacement copper contacts designed for industrial applications.
Whether you require high-volume OEM manufacturing capacity, custom product housing designs, or support with international certifications, our engineering team is here to help.
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