Timetric Electric is a leading manufacturer and supplier of AC High Voltage Load Switch in China. We have been focusing on the research and development and production of high-voltage equipment for many years. Our products are well-known worldwide for their excellent quality and competitive prices, and have become the first choice of many customers. We are committed to pursuing excellence and ensuring customer satisfaction, so we enjoy a good reputation in the industry.
FN7-12(24)DR Type AC high voltage load switch (hereinafter referred to as the load switch) is a new type of gas production
type indoor high voltage load switch, which is suitable for the three-phase AC power system with AC 50HZ and rated
voltage 12KV/24KV, as the load current and short circuit current.
1. Altitude: ≤1000m.
2. Ambient temperature: -25℃~+40℃.
3. Relative humidity: daily average ≤95%, monthly average ≤90%.
4. No frequent serious vibration.
Content | Unit | Value | |
FN7-12 | FN7-24 | ||
rated voltage | kV | 12KV | 24KV |
rated frequency | Hz | 50Hz | |
rated current | A | 400,630 | 4,006,301,250 |
rated active load breaking current | A | 400,630 | 4,006,301,250 |
rated closed loop breaking current | A | 400,630 | 4,006,301,250 |
5%rated active load breaking current | A | 20,31.5,62.5 | |
rated cable charging breaking current | A | 10 | |
1min power frequency withstand voltage:phase-tophase, phase to earth/fracture |
kV | 50/60 | |
ightning impulse withstand voltage:phase-to phase, phase to earth/disconnecting fracture |
kV | 125/145 | |
rated short time withstand current (thermal stahility) | kA | 162,025 | |
rated short circuit duration | S | 1 | |
rated peak withstand currentk | kA | 405,063 | |
rated short circuit making currentk | kA | 405,063 | |
Mechanical Life | times | 2000 |
Model | Rated voltage kV | Rated current A | The rated current of the melt is A |
SDLA*J | 12 | 40 | 6.3,10,16,20,25,31.5,40 |
SFLA*J | 12 | 100 | 50,637,180,100 |
SKLA*J | 12 | 125 | 125 |
1. Arc cutter
2. Arc contact and arc extinguishing chamber
3. Insulators
4. Base
5. Move the touch knife
6. Gently touch the knife
7. Spring energy storage mechanism(installed in spindle sleeve)
8. The main knife opens and closes the crank arm
9. Fuse