Engineered for extreme reliability, precise trip coordination, and robust overcurrent protection across diverse commercial and heavy industrial systems.
Founded in 2015, Acereare Electric manages two wholly-owned manufacturing entities: "RuiRui Electric" and "KeRui Electric". We operate as a professional, original design and equipment manufacturer (ODM/OEM) specializing in molded case circuit breakers (MCCB), air circuit breakers (ACB), and premium-grade electrical components. With over 20 years of manufacturing craftsmanship inherited across two generations, our brand is a trusted name among high-end electrical system operators globally.
Our mature manufacturing complex in Wenzhou, China, stands as a top-tier industry base in terms of comprehensive design, precision manufacturing, and quality assurance. Our strategic cooperative relationships extend to nearly 100 tier-1 clients across European, Asian, and American distribution markets.
A 100A Circuit Breaker (typically Molded Case Circuit Breaker, or MCCB) is a key building block in modern power distribution systems. Unlike lower-amperage breakers designed for light branch circuits, a 100A device manages large power loads in industrial machines, HVAC arrays, commercial sub-panels, and renewable energy storage systems.
Today's procurement directors focus on four major market challenges:
| Technical Parameters | Thermal-Magnetic Type (ARM5/ARXM3) | Electronic/Adjustable Type (ARM3E) | Photovoltaic DC Type (ARM6DC) |
|---|---|---|---|
| Rated Amperage (In) | 16A to 125A (100A Standard) | 40A to 125A (Adjustable settings) | 100A, 125A, 250A |
| Rated Voltage (Ue) | AC 400V / 690V | AC 400V / 690V / 1000V | DC 700V / 1000V / 1500V |
| Breaking Capacity (Icu) | 35kA / 50kA / 65kA | 50kA / 65kA / 85kA | 15kA / 25kA / 40kA |
| Trip Unit Technology | Thermal-Magnetic (Fixed/Adjustable) | Microprocessor LSIG (Adjustable) | DC Magnetic Instantaneous |
| Mechanical Lifespan | 20,000 Operations | 20,000 Operations | 15,000 Operations |
Engineered to deliver high performance in demanding industrial and environmental conditions.
Built using low-temperature resistant structural resins and specialized lubricants. Thickened anti-corrosion plating on internal copper assemblies prevents mechanical binding in freezing conditions. Verified by independent -40°C laboratory test reports.
Our breakers withstand humid sea air and salty environments. They undergo 72-hour salt spray testing for complete machines and 48-hour testing for sub-components, protecting critical switchgear in ports, shipboard electronics, and offshore platforms.
For installations above 2000 meters, thin air reduces heat dissipation and dielectric insulation. We apply high-altitude derating coefficients to keep electrical performance safe, clean, and compliant in high mountain developments.
Widely installed in residential sub-panels, commercial malls, and high-rise main distribution boards. These compact breakers protect household electronics and building utilities from overloads and short circuits, improving overall system reliability.
Featuring thermal insulation barriers, heat-resistant molding compounds, and treated copper/iron assemblies. Developed through tests in our dedicated 55°C chamber to prevent thermal drift and ensure stable continuous operation.
Our intelligent breaker lines provide edge computing, real-time energy metering, and remote operations. Supporting multiple fieldbus and wireless communication standards, they act as active telemetry points for smart grids.
Get an inside look at our manufacturing facility, where we build MCCB and ACB units from raw copper and plastics to final calibrated testing. Our quality control relies on automatic assembly lines and precise calibration equipment to deliver reliable circuit protection devices.
Every 100A circuit breaker undergoes rigorous verification for contact resistance, insulation strength, and magnetic trip points before packaging.
Electrical safety technology is evolving to support cleaner energy and smarter grids. The Acereare engineering team is focusing on four key technical areas:
We are researching semiconductor-based topologies to achieve microsecond-level fault interruption, eliminating physical contact wear and mechanical arcing.
Moving toward green resin matrices and halogen-free compounds. Our goal is 100% recyclable casing parts without losing dielectric or mechanical performance.
Integrating micro-sensors that stream thermal, electrical, and lifecycle data to local AI models, predicting system failures before they cause downtime.
Designing specialized extinguishing chambers for DC voltages up to 1500VDC to support utility-scale solar farms and energy storage systems.
We combine over 20 years of family craftsmanship with automated production to deliver dependable electrical safety components.
A comprehensive, one-stop facility featuring six distinct processing technologies, high-precision metal stamping, CNC tooling, and over 10 manual and automated assembly lines.
Over 50 dedicated R&D engineers, each with 5+ years of experience in 3D mold layout and electrical design. We launch over 50 new design projects annually.
Our dual factories manage component fabrication and final machine testing. Integrated ERP and U8 management systems keep operations organized and lead times stable.
A rigorous, multi-stage testing process backed by an in-house laboratory with 150+ testing instruments, 20+ inspectors, and end-to-end PLM/BI/ERP/MES software monitoring.
We act as your overseas manufacturing partner, tailoring products to meet your local code and regulatory requirements.
How we work with global distribution partners to deliver quality products from initial consultation to final delivery.
Every circuit breaker is tested and verified to meet safety and performance standards worldwide.
Expert technical answers to common questions about selecting and sourcing 100A circuit breakers.
Thermal-Magnetic MCCBs rely on a bimetallic strip for overload protection and an electromagnet for short-circuit protection. They are simple, reliable, and cost-effective, but have fixed or limited adjustment ranges. Electronic MCCBs use internal current transformers and a microprocessor to measure the current waveform. They offer highly adjustable settings (LSIG: Long-time, Short-time, Instantaneous, Ground fault), making them ideal for precise coordination in complex power grids.
At elevations above 2,000 meters, the thinner air reduces heat dissipation and insulation strength. Consequently, a 100A MCCB must be derated for both operational current and rated voltage. Acereare provides high-altitude derating tables to help you select the correct breaker size for mountain installations.
Icu (Ultimate Short-circuit Breaking Capacity) is the maximum fault current the breaker can safely interrupt, though it may require replacement afterward. Ics (Service Short-circuit Breaking Capacity) is the level of fault current the breaker can interrupt and continue to operate afterward. We design our premium series with Icu equal to Ics (100% Ics=Icu) to minimize post-fault downtime in critical applications.
Yes, we manufacture dedicated DC molded case circuit breakers (such as the ARM6DC series) designed for voltages up to 1500VDC. These are engineered for solar PV installations, battery storage arrays, and high-voltage DC distribution panels.
We manage quality across our entire supply chain using PLM, ERP, and MES software. Our in-house testing lab features over 150 testing instruments, and we conduct 100% calibration, trip accuracy, and insulation testing on all complete breakers before shipping.
From heavy-duty air circuit breakers to dedicated PV components and smart distribution units.
AceReare