Overview
High voltage fuses designed for the protection of transformers, motors, capacitor banks, and other medium and high-voltage electrical equipment. Our fuses provide fast, reliable overcurrent protection with excellent interrupting performance.
Key Features
- High breaking capacity up to 63kA for reliable fault protection
- Low I²t values for fast fault clearing and reduced thermal stress
- Temperature-independent fuse element design
- Available in current-limiting and expulsion types
- Built-in striker pin for tripping associated switchgear
- Minimal power loss at rated current
Technical Specifications
| Parameter | Specification |
|---|---|
| Rated Voltage | 3.6kV to 40.5kV |
| Rated Current | 6.3A to 200A |
| Breaking Capacity | 50kA to 63kA (symmetrical) |
| Time-Current Characteristic | Fast-acting (backup), general-purpose (aR, gR) |
| Operating Temperature | -25°C to +70°C |
| Power Dissipation | 5W to 60W (at rated current, model-dependent) |
| Mounting Type | Bolted, clip-in, fuse-holder (DIN rail) |
| Standards | IEC 60282-1, IEC 60644, GB/T 15166 |
Applications
- Transformer primary protection
- Motor and generator short-circuit protection
- Capacitor bank protection
- Voltage transformer (VT) protection
- Switchgear and ring main unit integration
Contact us for detailed specifications and custom solutions.
