BJLW 40kV High-Voltage Current-Limiting Fuse (100A–1200A)

The BJLW 40kV series is a high-reliability current-limiting fuse designed for AC 50/60Hz medium and high-voltage power systems with a rated voltage of 40kV. It provides stable, fast-acting overcurrent and short-circuit protection in a wide rated current range from 100A up to 1200A, making it widely used in power substations, industrial power supply, new energy projects and electrical equipment protection.With excellent current-limiting performance, high breaking capacity and stable time-current characteristics, this fuse effectively protects transformers, high-voltage motors, capacitor banks, switchgear and other critical 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: 40kV, suitable for 40kV class power distribution networks
• Wide current range: 100A to 1200A to meet various load protection requirements
• Outstanding current-limiting performance to minimize impact on connected equipment
• High breaking capacity for safe and reliable fault interruption
• Stable and consistent time-current characteristics for accurate protection
• Low power loss and low temperature rise for high operational efficiency
• Rugged structure with high mechanical strength and shock 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

BJLW 40kV (100A–1200A) high-voltage fuses are widely applied in:

• Power transformers in 40kV distribution substations
• Medium and high-voltage motors and driving systems
• Shunt capacitor banks and power factor correction equipment
• Wind power, photovoltaic and other new energy power generation systems
• Medium and high-voltage switchgear, ring main units and compact substations
• Industrial power systems in metallurgy, petrochemical, manufacturing and mining

Why Choose BJLW 40kV Fuses?

The BJLW 40kV series provides professional and stable protection for 40kV power systems. The 100A–1200A wide current range satisfies most medium and heavy-load applications, with reliable performance and easy maintenance. Strict quality control and full standard compliance make it a trusted choice for power grids, industrial projects and equipment manufacturers worldwide.