BJL 20kV High-Voltage Current-Limiting Fuse (100A–400A)

The BJL 20kV series is a high-performance medium-voltage current-limiting fuse designed for AC 50/60Hz power systems with a rated voltage of 20kV. It provides stable, accurate overcurrent and short-circuit protection in a rated current range from 100A to 400A, making it widely used in distribution networks, industrial power supply, switchgear and electrical equipment protection.With excellent current-limiting performance, high breaking capacity and stable time-current characteristics, this fuse effectively protects transformers, medium-voltage motors, capacitor banks, ring main units and other key equipment from damage caused by fault currents. It features low power loss, low temperature rise and strong environmental adaptability, ensuring long-term safe operation in various working conditions.

Key Features

• Rated voltage: 20kV, suitable for 20kV medium-voltage distribution networks
• Rated current: 100A, 125A, 160A, 200A, 250A, 315A, 400A
• Excellent current-limiting performance to reduce impact on protected equipment
• High breaking capacity for safe and reliable fault interruption
• Stable and consistent protection performance
• Low power loss and low temperature rise
• Rugged structure, strong shock and vibration resistance
• Optional striker for fault indication and interlock control
• Standard dimensions for easy installation and replacement
• Compliant with IEC 60282 and GB/T standards

Main Applications

BJL 20kV (100A–400A) fuses are mainly used for:

• Distribution transformers in 20kV power systems
• Medium-voltage motors and drive units
• Shunt capacitor banks and power compensation devices
• Medium-voltage switchgear, ring main units and compact substations
• Industrial power systems in manufacturing, infrastructure and utilities
• New energy power generation and distribution equipment

Why Choose BJL 20kV Fuses?

The BJL 20kV series provides reliable, cost-effective protection for 20kV medium-voltage power systems. The 100A–400A current range covers most common medium-load applications, with stable performance and easy maintenance. Strict quality control and standard compliance make it an ideal choice for power grids, industrial projects and equipment manufacturers worldwide.