Optim TEFC

• 1-800HP
• Totally Enclosed Fan Cooled IP54 Design, IP55 for 5000 Frames and Larger
• 60Hz, 230/460V, 460V or 575V
• Horizontal F1 Mount
• 3600, 1800, 1200 & 900 RPM
• NEMA Premium Efficiency
• 1.15 S.F. Sine Wave Power; 1.0 S.F. VFD Power
• Class F Insulation
• Class B Temperature Rise
• Max Elevation 3300ft
• Continuous Duty
• 40°C Ambient
• Shielded Bearings Frames 140T-280T and Open Bearings with Regreaseable Provisions Frames 280TS, 320T and Larger
• Polyrex EM Grease in all Regreaseable Bearings, Multemp SRL Grease in Shielded Bearings
• Aluminum Rotor up to 440T Frames; Copper/Copper Alloy or Aluminum Rotor 5000 and Larger View Table
• Cast-Iron Frame and End Brackets
• Cast-Iron Conduit Box up to 449T Frames; Fabricated Steel Conduit Box 5000 Frames and Larger
• Non-Sparking Plastic Fan up to 449T 4,6 & 8 Pole Motors; Bronze Fan 440TS 2 Pole Motors; Aluminum Fan 5000 Frames and Larger
• Number of Leads 230/460V: 9 Leads 1-5HP; 12 Leads 7.5-125HP; 6 Leads 150 and Above
• Number of Leads 575V: 3 Leads up to 449T; 6 Leads 5000 Frames and Larger

• Solderless Lug Terminals on All Leads
• Grounding Terminal Inside Main Terminal Box, Additional Grounding Terminal on Frame for 5000 Frames and Larger
• Interchangeable F1 and F2 Mounting up to 449T, F3 Available 5000 Frames and Larger
• Dual Drilled Feet for Longer Frames (i.e. 145T also Drilled for 143T) 449T and Below
• Paint System: Phenolic Rust Proof Base with Lacquer Top Coat
• Stainless Steel Nameplate
• Insulated NDE Bearing Standard for 5000 Frames and Larger
• Rubber Flinger on DE up to 280T; Steel Flinger on Both Ends 280TS and Larger
• *HPE™ High Pulse Endurance Spike Resistant Wire
• 2 Dips Phenolic Alkyd Resin Varnish 140T-440T, 2 Dips Epoxy Resin 5000 Frames and Larger; Spray Enamel Top Coat on all Frames
• Bi-Directional Rotation Except 3600RPM Motors 5000 Frames and Larger Which are CCW From NDE
• Winding RTD’s, Space Heaters and Provisions for Bearing RTD’s Standard 5000 Frames and Larger
• CSA Certified for Class I, Division 2, Groups A, B, C & D (Class I, Zone 2, Groups IIC, IIB and IIA)
• CSA Certified Class II, Division 2 (Class II, Zone 22) available for 440 Frames and larger upon request
• *Speed Ranges up to 10:1 CT, and 20:1 VT. Refer to data sheet for rating specific turn down ratios
• *Meets NEMA MG1 Part 31.4.4.2

* Precautions should be taken to eliminate or reduce voltage spikes and shaft currents that may be imposed on the motor by the VFD as stated per NEMA MG1, Part 31.4.4.