Given: A three phase motor has the following specifications: type = squirrel cage; voltage = 440 volts, 3 phase; HP = 30; current = name plate is same as NEC rating; duty = continuous; design letter = 9; service factor = 0. A fuse that protects the branch circuit must be rated at ?

Given: A three phase motor has the following specifications: type = squirrel cage; voltage = 440 volts, 3 phase; HP = 30; current = name plate is same as NEC rating; duty = continuous; design letter = 9; service factor = 0. A fuse that protects the branch circuit must be rated at ?