Motor systems
Multiple Motor Feeder Calculator
Estimate feeder current from multiple motor currents with a preliminary largest-motor adder.
Systems worksheet
Calculation inputs
A
A
A
Calculated result
402 A
Planning estimateConfirm equipment ratings, manufacturer limits, adopted code requirements, and system-specific calculations before installation.
Method and field check
This preliminary sum adds 25 percent of the largest entered motor. Use the adopted motor-feeder rules, table currents, overloads, and actual starting conditions for final sizing.