Заказать и купить изделие «Автомат ВА57-31 500в 80А» от производителя в Спб, Москве.

Automatic circuit breakers of the VA57-31 series are designed to conduct current in normal mode, turn off the current in case of short circuits, overloads, as well as operational switching on and off of electrical circuits (up to 30 per day). Designed for operation in electrical installations with a rated voltage of up to 660 V AC with a frequency of 50 and 60 Hz and up to 220 V DC. It is allowed to use the switch for infrequent direct starts of asynchronous electric motors in the AC-3 mode in accordance with GOST 12434-83. The circuit breakers consist of the following assembly units: housing, free-release mechanism, arcing chambers, spark arresters, leads for connecting external conductors to the main circuit of the circuit breaker, etc. Additional assembly units (independent, undervoltage releases) are built into the circuit breaker or a unit that is attached to the circuit breaker ... Switches according to the installation method are manufactured in a stationary design. Rated voltage of a shunt release, V: alternating current with a frequency of 50 and 60 Hz - 110, 127, 220, 230, 240, 380 direct current - 110, 220 Rated voltage of free contacts, V: alternating current with a frequency of 50 and 60 Hz - 220, 380 direct current - 220 Rated current of free contacts - from 10 mA to 4 A Weight, kg, no more - 1.8