High Voltage MCCB

The LDM9 Series is designed for demanding power protection in new energy and industrial distribution systems. It supports AC415~1140V and DC250~1500V operating ranges, helping protect circuits in photovoltaic power generation, energy storage, electrical grid distribution, wind power, and industrial equipment.

As a High Voltage MCCB solution, it combines wide voltage coverage, selectable frame sizes, reliable short-circuit interruption, and flexible accessories for modern low-voltage and high-voltage DC distribution projects.

• Wide voltage coverage: Suitable for AC415~1140V and DC250~1500V applications.
• Current range up to 800A: Available frame-size ratings include 120A, 250A, 320A, 400A, 630A, and 800A.
• Strong breaking performance: AC models offer type H and type R breaking capacity options; DC models support reliable protection up to DC1500V.
• New energy focused: Recommended for photovoltaic, energy storage, grid-connected systems, and industrial power distribution.
• Flexible configuration: Supports 2P and 3P structures, manual or electric operation, and accessory integration.

For accurate model selection, confirm the required voltage type, rated current, pole number, breaking capacity level, operation method, accessory configuration, and installation space. For DC systems, pay special attention to voltage level, polarity, wiring direction, and project protection requirements.

This breaker series is suitable for projects that require stable protection at higher AC or DC voltage levels. It helps engineers simplify model selection while supporting new energy applications with strong insulation performance, reliable isolation function, and practical installation dimensions.

Need help selecting a High Voltage MCCB for your project? Send your working voltage, current rating, pole configuration, breaking capacity requirement, and estimated order quantity. Our team can provide model recommendations, technical data, and competitive pricing for bulk or OEM orders.