Some info I should have provided.

This is a 208 or 230 volt (depends if buck boosts have been installed) straight 3 phase feed with ground.

The outlet / plug combo is rated as a disconnecting means.

The breaker inside is a standard 3 pole 50 amp.

Another question, does the white need to be re-identified as it is used as an ungrounded conductor?

Bob


Bob Badger
Construction & Maintenance Electrician
Massachusetts