BDW 20kV High-Voltage Current-Limiting Fuse (300A–3150A)

The BDW 20kV series is a professional heavy-duty current-limiting fuse engineered for AC 50/60Hz medium-voltage power systems with a rated voltage of 20kV. Designed to meet the demands of medium-voltage, high-current applications, it provides stable, efficient overcurrent and short-circuit protection across a wide ampere range of 300A to 3150A.Ideal for industrial plants, power distribution networks and renewable energy projects, the BDW fuse effectively safeguards critical equipment such as transformers, high-power motors, capacitor banks, rectifiers and generator sets. Its superior current-limiting performance minimizes thermal and mechanical stress during fault conditions, preventing costly downtime and equipment damage.

Key Features

• Broad Current Coverage: 300A-3150A full-scale support, from medium-power transformers to high-power industrial drives, eliminating the need for multi-model matching.
• 20kV Medium Voltage Rating: Optimized for 20kV power distribution networks, ensuring perfect voltage matching and insulation performance.
• Exceptional Current-Limiting: Fast-acting design limits peak let-through current, reducing stress on connected equipment and enhancing system safety.
• High Breaking Capacity: Reliably interrupts high fault currents (up to 40kA/50kA), ensuring rapid fault isolation and system stability.
• Low Energy Loss: Precision-engineered structure minimizes power loss and temperature rise, improving operational efficiency and reducing long-term costs.
• Robust Construction: Rugged ceramic barrel and metal end cap build for shock/vibration resistance, operating reliably in harsh industrial environments (-40°C to +70°C).
• Global Standard Compliance: Manufactured to IEC 60282 and GB/T 15166.2 standards, with ISO 9001 certification, suitable for global projects.
• Easy Integration: Standardized dimensions for straightforward installation and replacement, compatible with most medium-voltage switchgear and RMUs.

Main Applications

The BDW 20kV (300A-3150A) fuse is widely applied in:

• 20kV medium-voltage distribution substations and power transformers
• High-power industrial motors, generators, and drive systems
• Shunt capacitor banks and power factor correction equipment
• Industrial rectifiers, electric furnaces, and large electrical loads
• Wind power, photovoltaic, and other new energy generation systems
• Medium-voltage switchgear, ring main units (RMUs), and compact substations
• Manufacturing, mining, metallurgy, and petrochemical industries

Why Choose BDW 20kV Fuses?

For power system engineers and industrial buyers, the BDW 20kV series offers a cost-effective, high-reliability solution for medium-voltage, high-current systems. Its wide current range covers most industrial load needs, while strict quality control ensures consistent performance and long service life. Whether for new project deployment or equipment retrofitting, BDW fuses provide comprehensive protection, reducing maintenance costs and ensuring uninterrupted power supply.