Product Description
Zhejiang Xinkou Power Equipment Co.,Ltd, is a high-tech enterprise
specializing in developping, design, manufacture, sales, import and
export of low voltage and high voltage electrical products.
Company main products: indoor and outdoor high voltage vacuum
circuit breaker, load break switches, disconnecting switches, drop
out fuse cutour, lightning arrester, etc. All products comply with
the requirements of GB, IEC, ANSI and other international standard.
| ltem | Unit | Data |
| Rated voltage | KV | FN12-12D/630 | FN12-12(R)D/125 |
| Rated frequency | HZ | 12 |
| Rated current | A | 50 |
| 1min power frequency withstand voltage | KV | 42 to ground and phases fracture 48 |
| Lightning impulse withstand voltage | KV | 75 to ground and phases fracture 85 |
| Rated thermal stable current | KA | 630 | 100 |
| Rated dynamic stable current | KA | 50 |
| Rated switching current(peak) | KA | 50 | 50 |
| Rated short-circuit current(expected) | KV | | 31.5 |
| Maximum breaking current threshold | HZ | Fuse characteratic curve accorting |
| Minimum breaking current | A | Fuse characteratic curve accorting |
| Rated transfer current | KV | 50 | 1.5 |
| Maximum breaking current | KV | 1.8 |
| Breaking OFF-load transformer capacity | KV/A | 1250 |
| Rated cable charging current | A | 10 |
| Rated active load current breaking times | Times | 10000 |
| Opening time when striker strikes | S | <0.06 |
| Earth switch thermal current switch | KA | 20(2S) |
| Thermal stable current of earth switch | KA | 50 | 50 |
| Motor operating power supply voltage | V | AC/DC 110/220 |
12kv vacuum load breaker switch electrical load break switch vacuum
load switch
| ltem | Unit | Data |
| FN12-10D/630 | FN12-10(R)D/125 |
| The total traveling distance of moving contact | mm | 200+8-2 |
| Phase center distance (Before energy storage) | mm | 210±15 |
| Moving contact overtravel distance | mm | 40±2 |
| Auxiliary contact opening distance | mm | >150 |
| Opening/Closing time difference among three phase | ms | <3 |
| Opening speed | m/s | >2.8 | >2.8 |
| Closing speed | m/s | >3.8 |
| Distance between metal flexible door and torch | mm | >125 |
| Fracture distance of earth switch | mm | >150 |
| Main circuit resistance | Ω | <120 | <300 |
| Maximum operating torque | NM | >160 |
12kv vacuum load breaker switch electrical load break switch vacuum
load switch
