Designed for use on pumps, fans, blowers or other variable torque applications. Constant torque applications requiring 5:1 or less speed range and applications requiring a drive bypass.
Features:
• INVERTER GRADE® Insulation System (Meets NEMA®† MG-1 Part 31)
• Class F Thermostats (One Per Phase)
• Cast Iron Frame (140: Rolled Steel), Cast Iron End Brackets
• Corrosion Resistant Mill & Chemical Duty Paint
• Stainless Steel Nameplate & Zinc Plated Hardware
• Shaft Slinger On Pulley End For IP54 Protection
• 40°C Ambient, NEMA®† Design B Performance On 60 Hertz Sine Wave Power
• 1.15 Service Factor On Sine Wave / 1.0 Service Factor On PWM
• Special Balance
• Regreasable Bearings 250 Frame & Up
• Double Shielded Bearings 140-360, Open On 400-440
• Double Dip & Bake With Extra Bracing
• Premium Efficient Design, F1 Assembly Position
• Class F Insulation, 1.15 Service Factor On Sine Wave / 1.0 Service Factor On PWM
• Constant Horsepower To 90 Hertz
• Conversion Kits: All Cast Iron Upgrade, C&D Flanges, Canopy Kits (except 320-360)
• C-Face Footed 1-5 HP
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