A variable frequency drive is an electronic device that allows you to start, stop, and control the speed of a three phase motor. It is also a motor starter as it is equipped with overload protection. Read more »
What is the difference between a 'new surplus' motor and a 'factory new' motor?
Our New Surplus electric motors and drives are new and unused overstock or discontinued items offered at lower prices and come with our 90-day warranty.
Factory New products are competitively priced and come with a manufacturers warranty.
Variable frequency drives (VFDs or inverters) now play an important part in major industry.
Within the last 10 years they have been perfected to control and vary the speed of 3 phase electric motors. They serve many purposes, besides speed control. Homeowners and hobbyist alike, who have lathes or milling machines with a 3 phase motor, usually don't have 3 phase power to operate. These VFDs (instead of using a rotary phase converter) can now be used to convert single phase power to 3 phase power. Read more »
Special purpose use on crushing and pulverizing equipment and other industrial equipment requiring extremely high starting torques and breakdown torques. Suitable for use with variable frequency drives.
Features
Output: 500 HP
RPM: 1200
Voltage: 460V @ 60Hz)
Full Load Amps: 563.1 A
Enclosure: TEFC (Totally Enclosed Fan Cooled)
Frame: 586/7UZ
Mounting: Rigid Base
Service Factor: 1.15
Efficiency: 95.8 (NEMA PREMIUM)
Bearings: NU324 / 6319
Factory New with manufacturer's warranty
1.15 Service Factor @ 60 Hertz; 1.0 Service Factor @ 50 Hertz;
Suitable for 575V @ 1.0 Service Factor
Sealed Bearings Through 215T Frame;
Regreasable Open Bearings 254T Frame and Above;
Insulated Bearing on ODE Available on 444T and Above
Class F Insulation System; Class B Rise at Full Load;
Class H Vacuum Pressure Impregnation (VPI) Resin for All Windings
40oC Ambient Continuous Duty
Stainless Steel Nameplate and Zinc Plate Hardware
NEMA Design C Performance
Feet are Dual Drilled for Mounting Flexibility
Dual Voltage Ratings Suitable for Part Wind Start on Lower Voltage;
Single Voltage (460V) Ratings are Suitable for Part Wind Start
Corrosion Resistant Epoxy Paint
F1 / F2 Reversible
Lifting Provision
Condensation Drains with Plugs
Windings Rated for 2200V Peak Voltage Spikes
IP55 Protection
Three (3) Year Warranty (Extended Warranty Available)
C-Flange & D-Flange Field Conversion Kits Available (Call Dealers for price and availability)
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