Motor Selection Std

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Motor Selection Std

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Formula

P = T × ω · ω = 2π n / 60

Mechanical power from torque and speed; service factor separate.

IEC / NEMA practice

Assumptions & limits

  • Duty cycle and start torque may dominate nameplate choice
  • Efficiency and PF for electrical sizing if converting to kW input
AluCalc 2026-07-12