https://gb.mitsubishielectric.com/fa/products/lv_distri/lvc-breakers/acb/air-circuit-breakers-acb-aesw/ae1250-sw-4p-f-1250a.html
AE1250-SW 4P F 1250A
This kind of breaker is used as the main power breaker of the supply such as buildings, factories and ships etc. and satisfy the various needs.
swf