Circuit breaker VA51-39-500A-344710-5000-660V-NR220AC-20UKHL3 NR220AC VK3Z4R VKS front aluminum busbar Contactor 1002387

Switches are designed for conducting current in normal mode and disconnecting current during short circuits, overloads, and impermissible voltage drops, as well as for infrequent (up to 6 per day) operational switching on and off of electrical circuits and are designed for operation in electrical installations with a nominal voltage of up to 660 V AC at a frequency of 50 and 60 Hz and up to 440 V DC. Included in the Ministry of Industry and Trade register.