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Friday, February 8, 2019
Question:
For a temporary service can I feed a temp 800 amp panel from (2) existing 400 amp breaker (3) phase 480 volt? The feeders will be sized at 400 amps each feeding a 800 main panel. Is this permitted?
Thomas Scimeca
A
Answer:
Hey Thomas thanks for your question. If I understand your question correctly then no. The 400 ampere circuit breakers would essentially be installed in parallel supplying the 800 ampere panelboard, which does not comply with 240.8.