Indoor Medium Voltage Load Break Switch
The indoor medium voltage load break switch is designed for 12kV power distribution systems. It is suitable for breaking and making load currents and short-circuit currents in electrical networks.
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
