20HP 1800RPM 256T - 575V

• Meets or exceeds NEMA Premium® Efficiency Requirements defined by NEMA MG-1, Table 12-12
• Class I, Div II Groups ABCD, T2B
• Suitable for wye-delta start on 213T frame and above
• 1.15 Service Factor @ 60 hertz; 1.0 Service Factor @ 50 hertz
• Inverter Duty (20:1 variable torque; 10:1 constant torque)
• Vacuum Pressure Impregnation for all windings
• Sealed bearings thru 215T frame
• Greasable bearings 254T frame and above
• Mechanical “V” Seal on drive end
• Class F insulation system, class B rise at full load
• 40° C ambient continuous duty
• Corrosion resistant paint
• Stainless steel nameplate and zinc plated hardware
• F1/F2 reversible
• Feet are dual drilled on most frames for mounting flexibility
• Cast iron frame construction including the conduit box
• C-Flange and D-Flange field conversion kits available
• Lifting provisions on 143T frame and above
• Condensation drains with plastic plugs
• IP55 Protection – Terminal box is sealed for IP66 protection
• CSA + C + US Certification
• ISO 9001 Certification

Notes

1. NEMA Premium® (NEMA MG-1 Table 12-12)
2. Inverter Duty (20:1 Variable Torque; 10:1 Constant Torque)
3. 12 Lead Partwind Start at 230V
4. 12 Lead Partwind Start at 460V
5. Ball Bearing on Drive End
6. Insulated Bearing on Opposite Drive End
7. Equipped with terminal blocks as standard
8. Inverter Rated (10:1 Variable Torque; 5:1 Constant Torque)