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Naile Electric Co., Ltd. was jointly established by a group of electrical professionals with years of experience in technology development and management. It owns modern industrial plants and office spaces. As a modern technology-based enterprise, it specializes in the production and operation of lo
Naile Electric Co., Ltd. was jointly established by a group of electrical professionals with years of experience in technology development and management. It owns modern industrial plants and office spaces. As a modern technology-based enterprise, it specializes in the production and operation of lo
Naile Electric Co., Ltd. was jointly established by a group of electrical professionals with years of experience in technology development and management. It owns modern industrial plants and office spaces. As a modern technology-based enterprise, it specializes in the production and operation of lo
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NLM3DC-630(2P)
CHNAILE
The NLM3DC-630/2P is a high-performance 630A DC molded case circuit breaker built specifically for demanding DC power systems such as solar PV arrays, energy-storage systems, DC distribution networks, and industrial automation equipment.
With Ui up to 1500V, Ue up to DC1000V, and a breaking capacity of 15kA, it provides stable, safe, and accurate protection even under extreme operating conditions.
Supports up to DC1000V, making it perfect for renewable-energy applications including PV combiner boxes and ESS power cabinets.
Ideal for heavy-duty systems requiring stable, continuous high-power protection.
With Icu up to 15kA, it ensures fast and reliable fault interruption.
Rated impulse withstand voltage Uimp 12kV, suitable for harsh environments.
Built-in overload & short-circuit protection ensures system stability.
Heat-resistant housing, premium contacts, and optimized internal arc-quenching structure.
Automated assembly robots
Precision testing & digital quality control
Real-time production monitoring
International-standard reliability testing
This ensures consistent quality, high reliability, and global-level safety standards — essential for customers in Europe, the Middle East, Southeast Asia, Africa, and South America.
Front label & branding
Color, handle, and terminal design
Special trip curves
Customized rated current or voltage
Packaging & logo customization
Perfect for brand expansion, distributors, and project-specific solutions.
✔ Exceptional stability and long service life
✔ Perfect for solar, ESS, telecom, and industrial DC applications
✔ High accuracy in DC protection, even under fluctuating loads
✔ Affordable and cost-effective compared with well-known global brands
✔ OEM/ODM flexibility attracts large distributors & project integrators
✔ Manufactured on intelligent lines ensuring international-grade quality
Solar photovoltaic power stations
Energy-storage battery cabinet systems
Telecom DC power distribution
Industrial DC motor control
Rail transit DC systems
UPS & backup power systems