A motor has a 32-ampere nameplate current, and the problem supplies a permitted 115-percent overload setting. What setting results?

Texas Journeyman exam practice question · Motors & Generators

A motor has a 32-ampere nameplate current, and the problem supplies a permitted 115-percent overload setting. What setting results?

A32 amperes
B147.2 amperes
36.8 amperes
D27.8 amperes

Why C is correct

Motor overload protection uses nameplate current for this calculation. Multiplying 32 amperes by the supplied 1.15 factor gives 36.8 amperes; this is distinct from branch-circuit conductor sizing.

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The applicable NEC table gives a motor full-load current of 28 amperes. What minimum branch-circuit conductor ampacity results from the general 125-percent rule?
A motor branch conductor calculation produces 52.5 amperes using the general 125-percent rule. What table full-load current was used?
A permitted 115-percent overload calculation produces 31.05 amperes. What motor nameplate current was used?

A motor has a 32-ampere nameplate current, and the problem supplies a permitted 115-percent overload setting. What setting results?

A motor has a 32-ampere nameplate current, and the problem supplies a permitted 115-percent overload setting. What setting results?

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