China FN12 Indoor High Voltage Load Switch - Reliable Suppliers and Factory for Power Distribution Solutions
Rated Rating
12kV rated voltage at 50Hz frequency, suitable for three-phase systems.
Short Circuit Protection
Engineered to safely close and endure severe short-circuit currents.
Flexible Control
Supports both manual and motorized operating mechanisms.
Technical Specifications
| Product | Indoor Load Switch |
| Model | FN12 |
| Rated Voltage | 12KV |
| Rated Current | 630A |
| Operation | Manual/Electric |
| With Fuse | Without Fuse |
| Usage Temperature | -25℃-40℃ |
Frequently Asked Questions
The FN12 switch operates with a rated voltage of 12kV, a rated frequency of 50Hz, and a rated current capacity of 630A.
It is primarily applied in downtown power distribution stations, three-phase ring main units (RMU), terminal power supply configurations, and industrial consumer installations.
Yes, the switch supports dual operating modes: manual operation directly at the unit, and electric (motorized) operation for automated or remote control.
The device is built for indoor use with an ambient operational temperature range running from -25°C up to +40°C.
The standard FN12 configuration is supplied without fuses; fuse combination setups are available within the composite FNR12 range for integrated short-circuit protection.
It is designed to make and break load current, closed-loop current, charging currents of no-load transformers and cables, as well as bearing and closing under short-circuit conditions when combined with an earthing switch.