Explore our premium catalog of high-voltage switches, air circuit breakers (ACB), molded case circuit breakers (MCCB), and core structural electrical components engineered directly from our state-of-the-art facilities.
Unveiling the engineering principles, high-performance safety structures, and industrial applicability of fixed configuration Air Circuit Breakers.
A Fixed Type Air Circuit Breaker (ACB) is permanently bolted inside low-voltage switchgears. In contrast to the draw-out type, which can be mechanically racked out of the switchboard enclosure, the fixed type is structurally integrated and physically connected to the primary copper busbars. This configuration provides distinct advantages in terms of mechanical stability, structural vibration resistance, and electrical continuity under harsh short-circuit conditions.
Our flagship ARW1 Series Intelligent Fixed Type ACBs are engineered to operate in distribution grids up to 690V with rated continuous currents ranging from 400A up to 6300A. Operating at 50Hz/60Hz, they safeguard electrical grids, motors, generators, and transformers against thermal overloads, short-circuits, and phase imbalances.
Acereare Electric, founded in 2015, possesses a heritage of excellence inherited across two generations. As a leading manufacturer in China, we manage two wholly-owned subsidiaries: RuiRui Electric and KeRui Electric.
Acereare Electric stands as a professional, original manufacturer integrating research and development, design, processing, and assembly of premium molded case circuit breakers (MCCB), air circuit breakers (ACB), and critical stamping components. Boasting solid technical accumulation and a mature production system, our factory ranks among the top well-known ODM manufacturers in China. Our dedication to quality is backed by comprehensive supply chain integration, deploying advanced ERP and U8 management systems to coordinate production from raw material selection to finished circuit protection systems.
Why top global enterprises select Acereare Electric as their strategic manufacturing partner for Low-Voltage switchgear products.
We deploy six advanced internal processing techniques. Standardized tooling design and automated sheet metal stamping lines guarantee mechanical tolerances down to the micrometer level. This ensures exact clearances within the contact terminal assembly and the arc chute systems.
Equipped with over 150 dedicated testing instruments and managed by 20+ specialized QC inspectors, our laboratory runs short-circuit simulation, mechanical endurance tests, thermal calibration, and advanced metallographic analysis on copper components.
Our factories leverage PLM, BI, ERP, and MES software platforms. This digital framework provides real-time supply chain transparency, tracking components from raw sheet metal to finalized intelligent trip units, minimizing defects and reducing production cycle times.
We provide full design customizability. From adjustable electronic trip units (LSIG) to customized silvered moving contacts and dual-breaker mechanical interlock structures (ARM5 Series), we supply solutions tailored to regional grid codes.
Acereare Electric designs and manufactures a comprehensive array of circuit breakers with premium quality and unmatched reliability. Review our primary product series below.
Heavy-duty industrial Molded Case Circuit Breaker (MCCB) designed for main distribution boards and sub-panels, providing reliable overload and short-circuit protection.
Molded Case Circuit Breakers with integrated leakage protection (ELCB), guarding personnel and electrical equipment from ground fault currents.
High-reliability thermal-magnetic circuit breakers built for 400V/690V systems, offering customizable trip settings for complex machinery protection.
Electronic adjustable MCCBs equipped with built-in LSIG (Long, Short, Instantaneous, Ground) trip units for highly selective power coordination.
Double-breaker MCCB configuration featuring premium breaking capacities up to 200kA at 400VAC, providing robust safety margins for heavy industrial facilities.
Advanced digital circuit breakers incorporating LCD displays, remote monitoring linkages, and Modbus/Profibus industrial protocols.
Our core intelligent Air Circuit Breaker series, engineered for rated currents of 400A to 6300A, featuring open communication interfaces for full digital SCADA integration.
Next-generation, ultra-rugged Air Circuit Breakers optimized for utility-scale PV plants, smart city networks, and heavy mining environments.
OEM accessories including mechanical interlocks, shunt trips, auxiliary contacts, silver-plated copper moving contacts, and customized metal stamping parts.
Acereare engineering designs specific circuit breakers and housing adjustments to match demanding applications across multiple sectors.
Standard circuit breakers can suffer from mechanical jamming or sensor failure in sub-zero climates. Acereare deploys specialized low-temperature resistant materials, structural components lubricated with low-temperature silicone oils, and thickened anti-freeze coatings. Verified by laboratory testing at -40℃, our circuit breakers deliver reliable operation in arctic climates and outdoor sub-stations.
To resist humid, marine environments, we conduct rigorous salt spray tests (72 hours for complete assemblies, 48 hours for semi-finished elements). Our ACBs withstand the corrosive effects of maritime conditions. They are widely used in dock power systems to protect key equipment such as motors and transformers, preventing damage caused by salt deposits.
At high altitudes, thin air reduces insulation capacity and dielectric strength, and limits cooling efficiency. If the installation altitude exceeds 2000m, the electrical performance of the circuit breaker should be adjusted using a high-altitude derating table. We assist EPC contractors with calculated current and voltage correction coefficients for safe high-altitude operations.
MCCBs are widely used in residential distribution boards to protect downstream appliances from damage caused by circuit overload or short circuit faults. They offer high flexibility and improved operational reliability, keeping home circuits safe and stable.
In hot desert regions and enclosed industrial spaces, ambient temperatures can climb rapidly. We construct our components with high-temperature resistant thermoplastics. The surface of the controller is protected by a thermal insulation layer, and all copper and steel parts are treated to resist humidity and corrosion. Performance parameters are verified inside our 55℃ constant temperature room.
Modern electrical networks require digital monitoring capabilities. Our intelligent ACBs provide communication, metering, protection, control, and edge computing functions. They cut off the circuit to protect the system from damage and offer high-precision metering. Supporting multiple communication protocols, they provide a reliable foundation for smart grid implementation.
Acereare Electric partners with regional switchgear builders, distributors, and global brands to deliver customized circuit breaker configurations.
Increase market visibility with custom logo applications. Using quality raw materials helps you build a solid brand reputation. Quick sample customization accelerates the introduction of new products into your target markets, while advanced structural designs distinguish your products from competitors.
Gain access to tooling and mold development capabilities. We handle custom product function design and secure international test reports (refunded based on volume). We offer 24-hour response cycles to serve as your dependable overseas production facility.
We offer customized logo printing and laser marking for authorized trademarks. We supply custom packaging design (outer shipping cartons, inner product boxes) and customized product catalogs, keeping our minimum order quantities flexible for new projects.
Analyze project specifications and select the appropriate circuit breaker ratings.
Provide engineered single-line drawing support and high-altitude or temperature calculations.
Finalize design parameters, custom packaging requirements, and commercial terms.
Complete parts stamping, silvering treatment, assembly, and automated testing.
Package products to marine shipping standards and manage international logistics.
A comparison of the electrical, physical, and economic differences between Fixed and Draw-out Air Circuit Breaker configurations.
| Feature Parameter | Fixed Type ACB (ARW1-F) | Draw-out Type ACB (ARW1-D) |
|---|---|---|
| Primary Installation Method | Directly bolted to copper busbars | Mounted on a sliding cradle with terminal contacts |
| Initial Equipment Cost | Cost-effective (No racking cradle or shutters) | Premium cost (Includes mechanical racking chassis) |
| Maintenance & Replacements | Requires full busbar power isolation | Can be isolated and racked out during operation |
| Enclosure Space Footprint | Compact; smaller enclosure depth required | Requires deep enclosures for racking travel |
| Contact Resistance | Extremely low (due to secure bolted joins) | Low (dependent on slide terminal contact force) |
| Seismic & Vibration Resistance | High; rigid mounting handles severe vibrations | Standard; depends on locking chassis mechanism |
Explore expert answers to common queries regarding industrial air circuit breakers, design parameters, and sourcing from China factories.
Explore additional industrial circuit breakers and high-capacity switchgear parts, sourced directly from our manufacturing facilities.
AceReare
