Hello I have a 1200 amp 120/208 v 3 PH 4w Siemens tap box existing at a job I’m working on , the tap box is only powering one meter 200 amp 3 ph breaker out of 6 meter box , my question I need to add a 600 amp ct cabinet meter 3 ph 4 wire per plan (70 ft away ) of the 1200 amp tap box with multi mechanical lug and a disconnect switch after ct cabinet meter and then load to MDP 600 amp 3ph 4 w 120 / 208 volt interior .