Which device will stop the motor shown in the illustration in case of a short-circuit (high current) motor fault? Illustration EL-0080

Correct Answer: Option B — disconnect switch fuses FU1, FU2, and FU3

Per Title 46 CFR Subchapter J and IEEE 45 feeder protection standards, primary upstream disconnect fuses FU1, FU2, and FU3 provide instantaneous short-circuit protection by rapidly clearing high fault currents before damage occurs to internal controller wiring.