Indoor FN12 10kv 11kv 12kv 630A 1250A Air Load Break Switch
1. FN12 type indoor 10kv 11kv 12kv 630A Air load break switch
It is a three phase H.V. switch equipment of 12KV, 50Hz for breaking or closing load current., no-load transformer cable charging current and closing short-circuit current. The load switch with earth switch can bear short-circuit current.
It is made up of FN12-12D load switch and S()LAJ-12(XRNT()-10) H.V. current-limiting fuse box. It can break any current, load switch breaking working current and fuse box breaking short-circuit current, jointly breaking any current between short-circuit current. Meantime, fuse box make the switch off of with the striker.
2. Service Condition
1. The ambient air temperature: MAX.: +40°C, Min.: -10°C.
2. The altitude does not exceed 1000m.
3. The relatire humidity of air daily average ≤90%, monthly average ≤ 95%.
4. The ambient air should not be obviously polluted by corrosivity or the flammability gas and steam. etc.
5. The working situation without frequent violent.
3. Technical Parmeter
| Number | Name | Unit | FN12-12D/630-20 | FN12-12D.R/100-31.5 |
| 1 | Rated voltage | kV | 12 | |
| 2 | Rated frequency | Hz | 50 | |
| 3 | Reated current | A | 630 | 1000 |
| 4 | Lighting impulse resisting voltage | kV | 75/85 | |
| 5 | 1min power frequency with stand voltage | kV | 42/48 | |
| 6 | Rated heat - stability current | kA | 20(4S) | |
| 7 | Rated machine-stability current | kA | 50 | |
| 8 | Rated closing current (peak) | kA | 50 | |
| 9 | Rated short-circuit breaking current | kA | 31.5 | |
| 10 | Rated transfer current | kA | 1.5 | |
| 11 | Max. breaking current | kA | 1.8 | |
| 12 | Breaking no-load transformer capacity | Kva | 1250 | |
| 13 | Rated cable charging current | A | 10 | |
| 14 | Rated power load current breaking times | time | >100 | |
| 15 | Switch-off time of rated power load current switch on-and-off | S | >0.06 | |
| 16 | Earth switch heat-stability current | kA | 20(2S) | 20(2S) |
| 17 | Earth switch heat-stability curreak (peak) | kA | 50 | 50 |
| 18 | Motor operating power valtage | V | AC220,DC48 | |
4. Photo
5. Factory
6. FAQ
1. Send the technical data, better for all useful information; we will make a good recommendation.
If possible please attach one reference picture to avoid any misunderstanding or any links from our website for we get a better understanding.
2. The lead time depend on quantity of order. Some standard type is on stock. Otherwise, it will take 3-15 days.
3. Usually shipped by sea, small order or urgent order we can send you by air.
4. All our activities are accredited to ISO 14001:2015 and IEC standard.
5. Technology ensure the quality satisfy international request.
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