Given: A rigid metal conduit contains only the following THREE circuits: Two – 150 amp, 3 phase circuits: One – 300 amp single phase; The load side equipment bonding jumper for this conduit must be a minimum size of _____ copper.

Given: A rigid metal conduit contains only the following THREE circuits: Two – 150 amp, 3 phase circuits: One – 300 amp single phase; The load side equipment bonding jumper for this conduit must be a minimum size of _____ copper.