Severe Duty Motors – Features at a Glance (2010–2011)

This document provides a comprehensive feature comparison and technical specifications for severe duty motors available in the 2010–2011 product lineup. It includes data on motor designs, certifications, materials, operational standards, and inverter-duty capabilities for use in demanding industrial environments.

Key Points

  • Covers horsepower range from 1–400 HP with frame sizes 140–S449.
  • Provides NEMA Premium® and NEMA Premium®+ efficiency ratings.
  • Outlines electrical specs: 3-phase, 60Hz power supply with multiple voltage options.
  • Specifies inverter duty ratings (VT 20:1, CT 4:1 and 10:1) for different frame sizes and materials.
  • Includes SD100 and IEEE 841 motor classifications for severe-duty environments.
  • Lists detailed construction materials: cast iron frames, high-strength steel shafts, and bronze fan options.
  • Details enhanced sealing and insulation: Inpro/Seal® bearing isolators and Class F insulation.
  • Highlights warranty differences: 36 months (standard), 60 months (IEEE 841).