A Type D circuit breaker is a specialized overcurrent protection device engineered to handle exceptionally high inrush current surges without nuisance tripping, typically designed to withstand 10 to 20 times its rated full-load current. These breakers are deployed primarily in industrial or commercial environments powering heavy inductive loads with massive startup surges, such as large electric motors, commercial transformers, X-ray machines, and heavy welding equipment.
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