1kV High-Current Current-Limiting Fuse (125A–250A)

The 1kV 125A–250A series is a professional low-voltage high-current fuse designed for AC 50/60Hz low-voltage power distribution systems with a rated voltage of 1kV. It provides stable, accurate overcurrent and short-circuit protection in a rated current range from 125A to 250A, widely used in power distribution cabinets, industrial equipment, power conversion devices and general medium-load power systems.With excellent current-limiting performance, high breaking capacity and stable time-current characteristics, this fuse effectively protects transformers, motors, capacitor banks, inverters and other key electrical equipment from damage caused by fault currents. It features low power loss, low temperature rise and strong environmental adaptability, ensuring long-term safe and reliable operation in industrial and utility applications.

Key Features

• Rated voltage: 1kV, suitable for low-voltage power distribution systems
• Rated current range: 125A, 160A, 200A, 250A to meet various medium-load requirements
• Excellent current-limiting performance to minimize impact on connected equipment
• High breaking capacity for safe and reliable fault interruption
• Stable time-current characteristics for accurate protection coordination
• Low power loss and low temperature rise for high operational efficiency
• Compact and rugged structure, shock and vibration resistant
• Standard dimensions for easy installation and replacement
• Compliant with IEC and GB international industry standards

Main Applications

This 1kV (125A–250A) high-current fuse is widely used in:

• Low-voltage power distribution cabinets and box-type substations
• Medium-power industrial motors and drive systems
• Inverters, rectifiers and power conversion equipment
• Capacitor banks and power factor correction devices
• General industrial power systems and manufacturing equipment
• Infrastructure and commercial power supply systems

Why Choose Our 1kV 125A–250A Fuses?

Our 1kV high-current fuse series provides cost-effective, stable and long-lasting protection for low-voltage power systems. The 125A–250A current range covers most common medium-load applications, with reliable performance and easy maintenance. Strict quality control and full standard compliance make it a trusted choice for industrial users, contractors and equipment manufacturers worldwide.