Direct factory source for high breaking capacity breakers, intelligent solar units, and MCCB accessories. Fully engineered for rugged environments.
As heavy industry moves rapidly toward electrification and grid digitalization, standard low-voltage switchgears are no longer sufficient. Large-scale processing facilities, utility data centers, and multi-megawatt PV installations demand advanced circuit protection capable of continuously handling 1000 Ampere ratings (1000A MCCB) without pre-mature thermal fatigue or critical failure.
Molded Case Circuit Breakers (MCCB) rated at 1000A act as the gatekeepers of massive power systems. They must balance sensitive fault protection with system uptime, guaranteeing that downstream short-circuits are isolated instantaneously while preventing false trips caused by harmless transient motor-start inrush currents.
Our engineering research focuses on resolving critical bottlenecks: thermal management in high-ambient environments, arc extinguishment during high breaking-capacity faults (up to 100kA+), and integrating IoT smart telemetry modules directly into the breaker's frame size footprint.
Founded in 2015, Acereare Electric represents more than two decades of technological inheritance. 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 all related high-precision components.
With solid technical accumulation and a mature production system, our factory stands out as one of the top well-known ODM/OEM manufacturers in China. Our strategic partnerships span across nearly 100 high-end global energy brands and power system integrators.
Our craftsmanship has been passed down and honed through generations. We operate on a double-factory framework to secure components and finished machine assemblies in-house, ensuring robust supply chains even during peak procurement periods.
Adhering to the core value of win-win cooperation, we have built a solid reputation among our customers for outstanding service, first-class products, and unbeatable factory-direct prices.
One-stop shop offering six distinct processing techniques. Equipped with high-precision component production systems, advanced testing instrumentation, and over 10 manual and automated production lines.
More than 50 R&D engineers, each possessing over 5 years of mechanical/electrical engineering expertise. Master software design (3D component modeling, complex mold construction) executing 50+ innovative projects annually.
Utilizing twin factory campuses to support production spikes. Integrating operational workflows through centralized ERP and UFIDA U8 systems to track raw copper, silver contacts, and final logistics.
Strict multi-step testing regime supported by our own laboratory testing parts. Powered by 150+ sets of testing instruments and a dedicated QA team of 20+ inspectors executing control via PLM/BI/ERP/MES software.
We engineer our Molded Case Circuit Breakers to operate flawlessly under extreme, harsh macro-environmental challenges.
Formulated with specialized low-temperature resistant materials, structural lubrications, and thickened anti-corrosive metal coatings. Fully verified by cold-chamber tests holding stable performance down to -40 ℃.
Optimized for coastal installations, shipping yards, and wind turbines. Features 72-hour salt spray testing on complete machines and 48-hour on sub-components to prevent critical rust, arc-discharge tracking, and mechanical jamming.
For installations exceeding 2000m. Since thin air affects heat dissipation and dielectric insulation strength, we provide engineering derating curves to adjust the current rating coefficient for stable high-altitude runs.
Widely utilized to protect large commercial HVAC networks, distribution panelboards, and building sub-stations against damaging system overloads, short-circuits, and transient spikes.
Equipped with thermal barriers and corrosion-resistant copper/iron components. Performance tested up to 55 ℃ in constant-temperature test chambers to prevent premature nuisance tripping in desert substations.
Built-in smart metering modules supporting RS485, Modbus, and remote telemetry control functions (remote sensing, remote adjustment, remote control, and remote signaling) for modernized industrial microgrids.
A reference table explaining key performance vectors designed for procurement managers and switchboard builders selecting circuit breakers for main distribution lines.
| Specification Parameter | Thermal Magnetic Type | Electronic Trip Unit (ETU) Type | Smart IoT Integrated Type |
|---|---|---|---|
| Rated Current (In) | 800A - 1000A (Adjustable Range) | 400A - 1000A (Wide Range Adjust) | 400A - 1000A (Precision Adjust) |
| Rated Voltage (Ue) | AC 400V / 690V | AC 400V / 690V / 800V | AC 400V / 690V / 1000V / 1140V |
| Breaking Capacity (Icu) | 50kA / 65kA | 70kA / 85kA / 100kA | 85kA / 100kA / 120kA |
| Long-time Delay Protection | Yes (Thermal strip adjustable) | Yes (Electronic setting parameter) | Yes (Digital parameter, programmable) |
| Short-time Delay Protection | Fixed / Instantaneous only | Adjustable (I²t on/off setting) | Adjustable with precision digital curves |
| Smart Metering & Comms | Optional auxiliary contacts | RS485 Modbus Optional | Built-in Modbus RTU, Ethernet, IoT |
| Standards Compliance | IEC 60947-2, GB/T 14048.2 | IEC 60947-2, CE, CB approved | IEC 60947-2, CE, CB, RoHS, REACH |
Acereare's manufacturing footprint relies on automated assembly lines alongside experienced technicians. All 1000A MCCB and air circuit breaker series undergo routine tests before shipping, including terminal heat-run testing, mechanical trip endurance tests, and calibration of trip curves.
Our intelligent flagship line, the ARW1 series intelligent type ACB, supports rated distribution networks from 400A up to 6300A, bringing selective protection to heavy main feeders. Watch our facility operations and quality control checks in the demonstration video.
We provide end-to-end design, tooling, assembly, and testing. Partnering with Acereare allows you to rapidly expand your local brand footprint.
Elevate your local brand awareness with our custom solutions:
Tap into our heavy industrial manufacturing plant:
Collaborate on ground-up design projects:
We match high international standards for power distribution safety, ensuring trouble-free local compliance audits.
As the electrical market experiences shifts, low-voltage protection components must keep pace. The roadmap for 1000A MCCBs centers on three major pillars:
With utility solar installations expanding, DC and high-voltage AC networks are standardizing on higher system voltages. Standard 400V ratings are shifting to 800V, 1000V, and 1140V AC. Manufacturers must redesign arc-extinguishing chambers to manage longer, higher-temperature arcs.
Unscheduled downtime carries a high cost. Modern 1000A MCCBs are transitioning from passive safety components to smart sensors. Microprocessors track real-time contact wear, terminal temperatures, and electrical parameters, reporting alerts before a fault occurs.
Global regulations pressure factories to eliminate toxic plastics and metal treatments. Future roadmaps focus on recyclable thermoplastics, lead-free solder, and optimized copper utilization in contact assemblies.
Clear, practical, and engineered answers to the most common queries from procurement specialists and utility system designers.
Thermal-Magnetic MCCBs use a bimetallic strip for overload protection (heats up and bends over time) and an electromagnetic coil for instantaneous short-circuit protection. They are simple, reliable, and cost-effective, but have less precise trip curves.
Electronic Trip Unit (ETU) MCCBs utilize internal current transformers (CTs) to digitally monitor load currents. A microprocessor analyzes the signal and commands a solenoid trip mechanism. ETUs allow customizable protection parameters (long-time delay, short-time delay, instantaneous, and ground-fault settings) for precise selective coordination.
At altitudes above 2000 meters, the thinner air has a lower density. This leads to two critical changes: reduced cooling capacity (requiring current rating derating) and lower dielectric breakdown strength (requiring correction of operational voltage and impulse ratings).
For installations at 3000m or 4000m, we consult our high-altitude derating table. Typically, a 1000A frame will be derated to approximately 930A or 880A respectively to keep operational temperatures within design limits.
Yes. As a fully integrated manufacturer operating two component subsidiaries ("RuiRui Electric" and "KeRui Electric"), we control the entire supply chain. We design and produce high-quality metal stampings, custom plastic injection molds, contact assemblies, and auxiliary contacts for switchboard and breaker manufacturers worldwide.
We source high-grade, oxygen-free copper for our internal conduction paths. Our contacts use silver alloy compositions (such as AgW or AgC) that offer excellent electrical conductivity and high resistance to welding or erosion during short-circuit interruptions.
Every batch of raw materials is verified in our in-house test laboratory, ensuring consistent quality and long electrical service life.
Our OEM onboarding process is simple and structured:
From the first technical query to final delivery, we support your team at every stage.
Analyze load demands, breaking limits, and environmental challenges.
Provide CAD layouts, derating curves, and trip coordinate charts.
Finalize technical parameters, warranty terms, and delivery schedules.
Manufacture under PLM control with rigorous routine inspections.
Secure export packing, coordinate shipping documents, and dispatch.
Explore our extended range of electronic trip systems, solar energy MCCBs, and OEM internal parts.
We protect customer interests, satisfaction, and long-term success. Reach out today for wholesale catalog requests, custom quote sheets, and direct engineering consults.
AceReare
