| Customization: | Available |
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| Type: | High-voltage |
| Structure: | Three-column Disconnector |
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FN7-12 Series Indoor H.V. Load Switch-Fuse Combination Apparatus
FN7-12DRModel Indoor AC HV Load Switch is suitable in 50Hz,rated voltage of 12Kv the three-phase AC power system
as the breaking load short-circuit current of the power and used the Closing,until the combination of electrical short-circuit
current can be breaking any current can be used as protection purposes.
AMBIENT CONDITION
| Rated voltage(kV) | 12 | ||
| Insulation level | 1min frequency voltage(kv) | Phase to phase,to earth 42 | Isolation fracture48 |
| Lightning impulse withstand voltage()KV | Phase to phase,to earth 75 | Isolation fracture85 | |
| Rated current(A) | 400 | 630 | |
| 4S Rated thermal current(KA) | 12.5 | 20 | |
| Rated actve load breaking curentKA(Peak) | 31.5 | 50 | |
| Rated short circuit making current(KApeak) | 31.5 | 50 | |


Our credentials are bolstered by the acclaimed ISO certification . Additionally, we possess an extensive collection of diverse type test reports that exemplify the unparalleled quality and reliability of our products.
Q1: Are you a trading company or manufacturer ?
A1: We are a professional factory with 7 years experience in the field of high and low voltage power transformers, substation, vacuum circuit breaker, power equipment.