The switches are designed for operation in electrical installations with voltages up to 690 V AC, frequency 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 for protecting electrical equipment from overloads and short circuits, as well as when the voltage drops to an unacceptable value. A3791B - 2-pole direct or alternating current, current-limiting (application category A) with an electromagnetic overcurrent release. A3792B - 3-pole AC, current-limiting (application category A) with electromagnetic overcurrent release. A3793B - 2-pole direct or alternating current, current-limiting (application category A) with electronic and electromagnetic overcurrent releases. A3794B - 3-pole AC, current-limiting (application category A) with electronic and electromagnetic overcurrent releases. A3793C - 2-pole, selective (application category B) with electronic overcurrent release. A3794C - 3-pole alternating current, selective (application category B) with electronic overcurrent release. A3797C - 2-pole without overcurrent releases. A3798C - 3-pole without overcurrent releases. Included in the register of the Ministry of Industry and Trade.
