A3790 Automatic Circuit Breaker for 250A to 630A Applications

The switches are designed for operation in electrical installations with voltages up to 660 V AC 50 and 60 Hz and up to 440 V DC for infrequent (up to 6 times a day) operational switching on and off of electrical circuits, as well as to protect electrical equipment from overloads and short circuits, as well as in case of voltage drop to an unacceptable value.