Recently got involved with a new account, one of the first projects was going to require a new 480 volt 400 amp bucket in their service gear.

We quickly found the 1200 amp service gear was indeed running at 480 but all the Westinghouse Tags say 208Y/120. It's been that way 20+ years. [Linked Image]

It appears it may be just mislabeled as it uses 600 volt fuses. The PM is researching it.

Bob Badger
Construction & Maintenance Electrician