High Voltage 3 Phase 12kv 630A Insulated Air Load Break Switch
1. FN7 Type Indoor High Voltage 3 Phase 12kv 630A Air Insulated Load Break Switch
FN7 type indoor high voltage 3 phase 12kv 630A air insulated load break switch is suitable for power network of AC 50Hz, rated voltage 12KV for breaking load current and controlling short-circuit current.
FN7(C)-12 type H.V. load switch and fuse box is based on the FN7-12 series H.V. load switch with operating mechanism, make the installation more simpler, can meet orders needs.
2. Normal 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. Specification
| Classification | Types | DS | DX | L | R | RA | F |
| Earth switch at the wire - in end | Earth switch at the wire - out end | Interlock device | Fuse box | Striking fuse box | Off device by motor | ||
| Without tripper | FN7-12 | - | - | - | - | - | - |
| FN7-12DSL | √ | - | √ | - | - | - | |
| FN7-12DXL | - | √ | √ | - | - | - | |
| FN7-12R | - | - | - | √ | - | - | |
| FN7-12DSLR | √ | - | √ | √ | - | - | |
| FN7-12DXLR | - | √ | √ | √ | - | - | |
| With striking tripper | FN7-12RAF | - | - | - | - | √ | √ |
| FN7-12DSLRAF | √ | - | √ | - | √ | √ | |
| FN7-12DXLRAF | - | √ | √ | - | √ |
√ |
4. Specified parameter
| Rated voltage (KV) | Insulation Level | Rated current(A) | 4S heatstabling current(KA) | Machine stabling current [peak] (KA) | Short-circuit controlling current(KA) | |
| 1min power frequency withstand voltage (KV) | Lighting impuslse resisting voltage [peak] (KA) | |||||
| 12 | 42 | 48 | 400 | 12.5 | 31.5 | 31.5 |
| 48 | 85 | 630 | 20 | 50 |
50 |
|
5. Factory
6. Delivery
7. FAQ
1. The lead time depend on quantity of order. Some standard type is on stock. Otherwise, it will take 3-15 days.
2. Usually shipped by sea, small order or urgent order we can send you by air.
3. All our activities are accredited to ISO 14001:2015 and IEC standard.
4. Technology ensure the quality satisfy international request.
5．Generally we promise one - two years quality guarantee, some products will be extended longer time for life span.
6. For tender cooperation, it is welcome to discuss the detail in between.
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Have questions about our products or want to discuss a custom order? Our team is ready to help you.