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 5000 Frames; Copper/Copper Alloy 5800 and Larger
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
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 600HP and Larger (2 Pole Motors Only)
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 CW 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 B, C & D (Class I, Zone 2, Groups IIB+H2, 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.