Automatic circuit breakers series VA57-35 for currents from 16 to 250 A are designed to carry current in normal mode and current disconnection at short circuits, overloads, inadmissible voltage drops, as well as for infrequent operational switching on and off of electrical circuits. They are designed for operation in electrical installations with rated voltage up to 690 V AC frequency 50 and 60 Hz.
Distinctive features: modular design, overall dimensions are adapted to the standards of Russian production. By means of adjusting screws on the body of circuit breaker VA57-35 it is possible to choose the settings of overload protection (Ir) 0,8 or 1 In and short-circuit protection (Ii) 5 or 10 In.
Circuit breakers series VA57-35:
- warranty period of 5 years;
- service life 15 years;
- reliability is assessed by the probability of failure-free operation when performing switching operations at load currents and without load currents, as well as when performing protective functions;
- ecology...
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