Engineered specifically for the harsh Australian climate and compliant with AS/NZS electrical standards.
Victoria's aggressive clean energy targets have positioned Melbourne as a key operational base for commercial rooftop PV installations, large-scale battery energy storage systems (BESS), and EV fast-charging distribution corridors. Protecting these assets requires precise direct current (DC) safety gear capable of withstanding the local climate dynamics—spanning high-temperature summer spikes to cold coastal winds.
As global project developers scale up infrastructure in Dandenong, Campbellfield, and the broader Port of Melbourne region, the demand for DC Molded Case Circuit Breakers (MCCB) rated at 1000VDC and 1500VDC has grown significantly. Under Australian electrical safety standards (specifically AS/NZS 5033 and AS/NZS 3000), strict isolation and fault clearance parameters are mandated. This requires switchboard designs that utilize robust DC MCCBs to isolate high-voltage PV strings and industrial battery banks, preventing catastrophic arc flashes and equipment damage.
Additionally, Victoria’s grid integration guidelines emphasize continuous operation, demanding high short-circuit breaking capacities (Icu) and service breaking capacities (Ics) from DC protection devices. Selecting reliable DC circuit breakers ensures minimize system downtime and keeps commercial solar investments operating efficiently.
Acereare Electric was established in 2015 and operates two wholly-owned subsidiaries: RuiRui Electric and KeRui Electric. As a specialized original equipment manufacturer (OEM) and original design manufacturer (ODM), we design and produce high-performance Molded Case Circuit Breakers (MCCB), Air Circuit Breakers (ACB), and precision metal components.
Drawing on 20 years of manufacturing experience across two generations, our facility is recognized as a leading OEM/ODM circuit breaker supplier in China. We support nearly 100 industrial customers worldwide, delivering electrical safety devices that protect high-voltage clean energy applications.
We integrate vertical manufacturing, R&D depth, and automated assembly to deliver electrical equipment aligned with AS/NZS standards.
One-Stop Service utilizing six core metal and plastic processing methods, high-precision automated assembly lines, and over 10 manual production cells.
50+ specialized R&D engineers skilled in 3D product modeling and tooling design, delivering over 50 custom new product developments annually.
Two distinct production plants to scale up raw component manufacturing and completed assemblies, coordinated via integrated ERP & U8 software.
In-house electrical and materials laboratory equipped with 150+ specialized testing instruments. Tracked and managed using PLM, MES, and BI software.
In commercial and utility-scale solar projects, circuit breakers face environmental challenges that can affect their electrical performance. We test and design our MCCBs to operate reliably in these demanding conditions:
Built with low-temperature resistant polycarbonates and specialty internal lubricants, our breakers are verified by independent test labs to perform down to -40°C.
Suitable for coastal environments like the Port of Melbourne. We perform a 72-hour salt spray test on finished assemblies and 48 hours on individual subcomponents.
At elevations above 2,000 meters, thinner air reduces cooling and dielectric strength. Our technical manuals provide clear voltage and current derating factors.
Protects battery energy storage systems from overcurrent and short circuits, helping to prevent battery runaway in residential setups.
Calibrated for hot Australian summers. Our design features thermal-insulation coatings and heavy-gauge copper conductors to handle up to 55°C ambient conditions.
Integrates measurement, protection, control, and edge-computing data link options. Supports standard communication protocols for smart grid integration.
We assist switchboard manufacturers, wholesale distributors, and electrical OEMs globally by providing custom brand and technical integration options.
Evaluating your project’s current, voltage, and short-circuit protection requirements.
Designing customized mechanical enclosures, copper terminals, and electronic trip curves.
Finalizing specifications, delivery schedules, and compliance documentation.
Executing manufacturing in our ISO9001 factory, backed by MES real-time quality tracking.
Ensuring secure export packaging and sea freight logistics directly to Melbourne.
All products are manufactured under strict ISO9001 and ISO14001 guidelines and undergo testing at certified facilities.
Our full range of components, high-voltage AC breakers, and DC MCCB units designed for clean energy and industrial power distribution.
Unlike AC circuits where the current periodically drops to zero, direct current (DC) arcs do not have a natural zero-crossing. When a fault occurs, the arc must be forced to extinguish using specialized design features like magnetic blowouts and arc chutes. In 1000VDC to 1500VDC solar applications, using a properly designed DC circuit breaker is essential for system safety.
Most DC MCCBs use thermal-magnetic trip units to protect against overcurrent and short circuits. For complex power distribution networks, electronic trip units (providing LSIG protection: Long-time delay, Short-time delay, Instantaneous, and Ground fault protection) offer adjustable settings to improve system coordination and selective tripping.
Industrial and commercial electrical enclosures in regions with hot summers can reach high internal temperatures. Because thermal trip elements are temperature-sensitive, engineers must apply temperature derating factors to prevent nuisance tripping. Our DC MCCBs are designed and tested to operate reliably at elevated temperatures, helping ensure continuous system operation.
In Australia and New Zealand, DC switchgear must meet strict requirements for isolation, labeling, and electrical ratings. Utilizing breakers certified to IEC/EN 60947-2 standards helps designers and switchboard builders ensure compliance with local electrical safety regulations.
Technical guidance for engineers, switchboard builders, and procurement teams.
AC circuit breakers rely on the natural zero-crossing of the alternating current wave to help extinguish electrical arcs. DC circuits do not have this zero-crossing, making arcs more difficult to extinguish. DC MCCBs are designed with specialized arc-extinguishing chambers, magnetic blowout elements, and internal contact geometry to safely quench high-voltage DC arcs.
Standard thermal-magnetic circuit breakers are calibrated for a base ambient temperature (typically 40°C). When installed in environments with higher temperatures, the thermal bi-metal element trips at a lower current. Engineers should use the manufacturer's temperature derating tables to select the appropriate breaker frame and trip rating for hot operating conditions.
Our circuit breakers are manufactured in accordance with IEC 60947-2 international standards, which serve as the foundation for the local AS/NZS 60947.2 specifications. We provide complete CE, TUV, and CCC type-test certifications. For compliance questions regarding local SAA approvals, contact our engineering support team.
Yes, in high-voltage DC systems, multiple poles are often wired in series. Connecting poles in series distributes the arc voltage across multiple contact gaps, allowing a breaker rated for 750VDC per pole to be used in systems up to 1000VDC or 1500VDC. Always follow the manufacturer's wiring diagrams to ensure proper pole configuration.
Standard product manufacturing runs generally take 3 to 4 weeks, depending on order volume and level of customization. Sea freight transit from our factories to the Port of Melbourne typically requires an additional 18 to 25 days. For urgent project demands, air freight options can be arranged.
Yes, we provide full OEM and ODM services for electrical equipment suppliers and wholesale networks. This includes custom brand labeling, customized technical documentation, and tailored packaging configurations. Contact our sales department to discuss minimum order requirements for custom brand options.
Get in touch with our technical team to discuss product specifications, custom OEM options, or request a quote for direct factory supply.
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