If the primary current is less than two amperes for a transformer rated at 600 volts or less, the short-circuit protective device can be set at not more than________ percent of this value.
A) 100
B) 200
C) 300
D) 400

Question

Quizplus · Accepted Answer

For transformers rated at 600 volts or less with a primary current of less than two amperes, the short-circuit protective device can be set at not more than 300 percent of the primary current according to the National Electrical Code (NEC) guidelines.

If the Primary Current Is Less Than Two Amperes for a Transformer