Equipment & SystemsQuestion 276 of 521
If the 125% overload device will not allow a 62 A (SF 1.15) motor to start, NEC 430.32(C) permits increasing the overload trip setting to a maximum of what value?
a.77.5 A (125%)
b.80.6 A (130%)
c.83.7 A (135%)
d.86.8 A (140%)
Explanation
NEC 430.32(C) allows the overload trip to be increased to a maximum of 140% of nameplate FLA (for SF >=1.15 motors) when the sized device won't let the motor start: 62 x 1.40 = 86.8 A. 130% and 135% are not the code ceiling, and 125% is the initial value.
Law Reference: 2023 NEC §430.32Practice all 521 questions free — no signup required.
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