Circuit breakers providing short circuit protection for trailing cables shall be set so as not to exceed the maximum allowable instantaneous settings specified in this section; however, higher settings may be permitted by an authorized representative of the Secretary when he has determined that special applications are justified: ------------------------------------------------------------------------
Maximum allowable
circuit breaker
Conductor size AWG or MGM instantaneous
setting (amperes)------------------------------------------------------------------------14................................................. 5012................................................. 7510................................................. 1508.................................................. 2006.................................................. 3004.................................................. 5003.................................................. 6002.................................................. 8001.................................................. 1,0001/0................................................ 1,2502/0................................................ 1,5003/0................................................ 2,0004/0................................................ 2,500250................................................ 2,500300................................................ 2,500350................................................ 2,500400................................................ 2,500450................................................ 2,500500................................................ 2,500------------------------------------------------------------------------