Siemens RGZESDI TEFC & TEBC Motors


The Siemens RGZESDI line of Totally Enclosed Fan Cooled (TEFC) and Totally Enclosed Blower Cooled (TEBC) motors are designed for high-efficiency, inverter-duty applications in harsh industrial environments. Built with cast iron frames, these motors support both variable and constant torque loads, and deliver superior reliability, thermal protection, and cooling.

Key Points

  • Available in power ratings from 1 to 400 HP
  • Designed with inverter-duty Class F insulation and Class B temperature rise
  • Cast iron frame and oversized conduit box for structural integrity and ease of installation
  • Regreasable, oversized bearings and high-temp polyurea-based grease ensure extended service life
  • Ideal for adjustable speed applications such as fans, pumps, blowers, mixers, and chemical processing
  • Meets or exceeds EPAct Efficiency standards and NEMA MG1-2003 Part 31
  • Advanced cooling via bi-directional, non-sparking fan and cast iron covers
  • Corrosion-resistant design with epoxy enamel paint and stainless steel nameplate