VA57-39 is a series of circuit breakers for currents from 250 to 630A, with a rated voltage of up to 660 V AC and 440 V DC, with a breaking capacity of up to 85 kA and the most in-demand market range of protection settings in the short-circuit current zone from 1250 to 6300 A. Included in the Ministry of Industry and Trade register.
| Trip indicator present | No |
| Number of auxiliary NO contacts | 0 |
| Number of auxiliary changeover contacts | 0 |
| Number of auxiliary break contacts | 0 |
| Number of poles | 3 |
| Rated ultimate short-circuit breaking capacity Icu at 400 V, 50 Hz | 35 кА |
| Rated continuous current Iu | 630 А |
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