Motor Load Calculator

Calculate motor circuit requirements per NEC Article 430.

Motor HP

Voltage

Motor Type

Starting Method

Results

Select motor parameters to calculate loads.

Conductor: 125% of motor FLC (430.22)

Overload: 115-125% of FLC (430.32)

Short Circuit: 150-300% of FLC (Table 430.52)

Feeder: 125% largest + 100% others (430.24)