Explore our premium industrial-grade Molded Case Circuit Breakers manufactured directly at our advanced facility.
In today's rapidly changing global industrial ecosystem, power distribution networks demand more than just basic protection mechanisms. The transformation toward smart grids, industrial IoT (IIoT), and digital substations has positioned the Molded Case Circuit Breaker (MCCB) as a key edge node for data collection and circuit protection. The ARM6Z series intelligent liquid crystal type remote control MCCB represents this technological paradigm shift.
Capable of managing currents from 250A up to 630A under 400VAC voltages, the ARM6Z series incorporates microprocessors, integrated liquid crystal displays (LCD), and Modbus/RS485 remote transmission channels. This enables energy systems to perform remote monitoring, real-time current metering, predictive fault analysis, and automated trip actions.
A trusted original equipment manufacturer integrating R&D, high-precision automated production, and global supply chains.
Founded in 2015 with Two Generational Craftsmanship
Acereare Electric, registered in 2015, manages two wholly-owned subsidiaries: RuiRui Electric and KeRui Electric. Our background rests on over 20 years of manufacturing experience, refining our capabilities to become one of China’s leading ODM/OEM partners for high-voltage and low-voltage distribution parts.
Integrating ERP, MES, and PLM software systems, the company provides a streamlined process from copper contact molding and stamping to the final calibration of smart trip mechanisms. Our products are exported to Europe, Southeast Asia, South America, and the Middle East, serving energy providers and industrial projects.
Six distinct processing techniques, highly automated assembly lines, high-precision custom molds, and cleanroom calibrations.
Over 50 senior engineers designing smart electronic trip units (ETU), firmware development, and customized industrial casings.
ERP and U8 software management system connecting supply chains, ensuring delivery timelines and component traceability.
150+ testing instruments, 20+ internal inspectors, and physical laboratories tracking aging, short circuits, and material wear.
Take a tour of our high-voltage and low-voltage circuit breaker manufacturing lines, test labs, and smart warehouse.
A comprehensive examination of the mechanical, electrical, and electronic systems that power our intelligent MCCB series.
Unlike traditional thermal-magnetic circuit breakers, the ARM6Z incorporates an integrated LCD screen on the front panel. Operating teams can view phase currents, real-time load voltages, insulation status, and the most recent 10 fault-trip logs directly on site. This eliminates the need for manual thermal imaging or multi-meter measurements, minimizing risk during maintenance.
The ARM6Z's trip unit is managed by a high-frequency microcontroller unit (MCU). This MCU samples data from integrated current transformers. Built-in Modbus and RS485 communication protocols enable integration with SCADA, DCS, or centralized building management configurations, allowing for remote open, close, and reset actions.
Features customizable multi-stage protection profiles, including long-time overload delay protection, short-time short circuit delay protection, instantaneous short circuit protection, and ground fault protection (LSIG). This selective coordination ensures that fault conditions are isolated locally, preventing upstream system failures.
| Parameter Description | ARM6Z-250 | ARM6Z-400 | ARM6Z-630 |
|---|---|---|---|
| Rated Current (In) | 100A, 125A, 160A, 225A, 250A | 250A, 315A, 350A, 400A | 400A, 500A, 630A |
| Rated Insulation Voltage (Ui) | 800V | 1000V | 1000V |
| Rated Working Voltage (Ue) | 400VAC / 690VAC | 400VAC / 690VAC | 400VAC / 690VAC |
| Ultimate Breaking Capacity (Icu) | 35kA - 50kA | 50kA - 70kA | 65kA - 85kA |
| Service Breaking Capacity (Ics) | 100% Icu | 100% Icu | 100% Icu |
Why international EPC contractors, grid operators, and distributors choose Acereare Group for critical electrical assets.
Acereare Group's two manufacturing centers utilize state-of-the-art automation. By integrating multi-station progressive stamping presses, automatic silver alloy welding machinery, and computer-controlled thermal calibration fixtures, we reduce mechanical tolerances to micron levels.
Our smart calibration systems test every single trip unit for long-delay, short-delay, and instantaneous tripping profiles, storing the historical test curve on cloud servers linked directly through local MES (Manufacturing Execution System) tracking.
We operate as a trusted partner for global brands, providing OEM and ODM services. Our specialized engineers support rapid prototyping, CAD/3D enclosure customization, and coordination with laboratories for international certifications.
With localized supply chains in Wenzhou, China—the global hub of electrical equipment production—we source components at competitive rates. This enables us to offer high-quality products at competitive price points.
Acereare circuit breakers are engineered to perform reliably in extreme industrial and geographic environments globally.
Utilizing low-temperature resistant lubrication, custom polymer casings, and specialized metal alloy spring assemblies, our circuit breakers are rated for safe start-up and continuous operation down to -40℃.
Our products undergo testing for up to 72 hours on full assemblies. Critical copper contacts receive thick anti-corrosion plating to withstand humid coastal air and salt spray in offshore and port environments.
At elevations above 2,000 meters, reduced air density affects insulation and cooling. We apply verified derating parameters to adjust current thresholds and contact spacing, ensuring safety at high altitudes.
These units integrate into commercial buildings and real estate distribution networks. They offer compact sizing, ease of installation, and high breaking capacities to protect circuits from overload.
Designed with heat-resistant materials and internal thermal insulation coatings, these breakers are tested in 55℃ environmental chambers to ensure steady operation in hot industrial climates.
Equipped with integrated microprocessors, RS485 communication, and high-precision current transformers, our breakers provide data measurement to support smart grids and edge computing systems.
Understanding our quality control frameworks, testing protocols, and step-by-step transaction workflow.
Our quality control process covers all phases of manufacturing. From verifying incoming materials (such as thermosetting resin shells and high-conductivity copper busbars) to final shipping audits, every step is systematically monitored.
Our test facility houses advanced instruments for checking mechanical lifecycle durability, short-circuit interruption performance, and thermal behavior. This ensures compliance with international industrial safety standards.
A transparent process designed to support timely delivery for global engineering projects.
Evaluate requirements and technical specifications.
Confirm drawing details and customization options.
Finalize parameters, pricing, and schedules.
Perform automated assembly and multi-stage testing.
Arrange secure packaging and export logistics.
As a leading ODM supplier, we manufacture a wide range of circuit breakers and system parts.
Get answers to common technical, manufacturing, and shipping questions regarding our smart circuit breaker series.
Review our broader range of circuit protection and automation systems available for wholesale procurement.
AceReare
