The HNM3DC series safely opens and closes as a breaker for DC 1500V direct current distribution for renewable energy.
In solar power generation (PV) and energy storage systems, the system voltage on the DC side is high, and current technology is evolving towards 1500 VDC, necessitating switching devices that operate at 1500 VDC. Junction boxes, DC cabinets, inverters, and energy storage inverters require switchgear that provides insulation, 1500VDC load switching, or remote operation capabilities, and must offer overload and short-circuit protection for the circuit. Thanks to years of development and manufacturing experience, EATON provides DC1500V MCCB for PV and energy storage systems. The HNM3DC DC molded case circuit breaker (MCCB) is equipped with protection functions against line overloads and short circuit faults, preventing damage to circuits and power devices, and is suitable for DC distribution networks with rated currents from 200A to 500A and rated voltages of DC1000V/DC1500V. These MCCBs are widely used in industries such as renewable energy, power supply, industrial control systems, and industrial construction.
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basic information
Features 1) Low cost and short delivery time 2) High voltage and large capacity Rated voltage: DC 750/1000/1500V Rated current: 63–500A 3) Modular and customizable Modular design and box-type accessories allow for flexible configurations tailored to customer needs. 4) Compact size and versatility The HNM3DC MCCB has a smaller, compact structure compared to similar products, ensuring lower temperature rise and supporting five optional connection methods, enabling more diverse and adaptable applications. 5) High reliability Excellent resistance to vibration, salt spray, high and low temperatures, and cyclic humidity, enhancing the all-weather capability and reliability of the circuit breaker.
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Applications/Examples of results
It is widely used in industries such as renewable energy, power supply, industrial control systems, and industrial construction.
Line up（2）
| Model number | overview |
|---|---|
| HNM3DC Series | High Voltage Direct Current Distribution Breaker MCCB (Max DC1500V 500A) |
| HNW3GDC Series | High Voltage Large Capacity DC Disconnect Switch (Max DC1500V 4000A) |
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Company information
Founded in Germany, where electrical control technology originated, the former Moeller has accumulated over 100 years of experience since its establishment in 1899 and became a part of the Eaton Group in 2008. Eaton Electric Japan has been supporting customers in Japan for over 49 years since the establishment of its Japanese office in 1974. Our products are developed to comply not only with international standards but also with the electrical and safety standards of various countries, ensuring safe use anywhere in the world. We offer a wide range of control devices necessary between the secondary side of transformers and loads, including various breakers and contactors with built-in thermal functions. We provide globally compliant transformers with short delivery times. Additionally, we offer products that further advance factory automation, such as program relays and compact PLCs that apply the latest electronics technology. We are currently focusing on peripheral equipment for renewable energy systems. With subsidiaries and agents forming a network worldwide, we can provide support tailored to the circumstances of each country. If you are considering export or facing challenges with national standards, please feel free to consult us.