Technical Specifications
Product Overview
FZN25-12 Series Indoor Load Break Switch
The FZN25-12 series is a three-phase AC 50Hz indoor high-voltage vacuum load switch rated at 12kV. Designed for industrial, mining, and substation applications, it provides essential electrical protection and control for load currents, loop currents, and no-load transformers. The unit is available in configurations including fuse combination types and models equipped with grounding switches for enhanced short-circuit protection and safety.
Electrical Ratings
Rated Current
- 630
- 125
- Rated Voltage
- 12 kV
- Rated Frequency
- 50 Hz
Performance Metrics
Performance Highlights
10,000 times
Mechanical Life
1,600 kVA
No-load Transformer Capacity
20 kA
4S Thermal Current
Technical Specifications
Detailed Technical Parameters
| Parameter | Value |
|---|---|
| Rated Dynamic Current (peak) | 50 kA |
| Rated Short-circuit Closed Current | 50 kA |
| Earth Switch Rated Dynamic Current | 50 kA |
| Lightning Impulse Withstand Voltage (Earth/Phase) | 75 kV |
Features & Compatibility
- Key Features
- Vacuum Arc ExtinguishingGrounding Switch IncludedManual/Electric ActuatorShort-circuit ProtectionIndoor Installation
