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 »
The AEGIS® SGR Bearing Protection Ring prevents electrical bearing fluting damage by safely diverting harmful shaft voltages and bearing currents to ground. Using proprietary Electron Transport Technology™, the conductive microfibers inside the AEGIS® SGR provide the most reliable current diversion technology for shaft grounding with a "path of least resistance" to dramatically extend motor life. AEGIS® SGR Rings have a warranty of 1 year.
Output: 50 HP
Speed: 1200 RPM
Voltage: 208-230/460 Volts @ 60 Hz
Frame: 365T
Full Load Efficiency: 94.1%
Full Load Power Factor: 86%
Full Load Amperage: 57.8A
Enclosure: Totally Enclosed Fan Cooled (IP54)
Grounding Ring Factory Installed Externally on DE Bracket for F# 143T-286T; Internally on NDE for F#284TS-405T
Service Factor: 1.15 (Continuous); (1.0 @ 50 Hz)
CSA Certified for Class I Div. 2 Groups B C D - Temp Code T3C Minimum
Insulation: Class F
Temperature Rise: Class B
NEMA Design B Torques as a Minimum; Various Ratings also Meet Design C
Construction: Cast Iron Frame and End Brackets; Rolled Steel Fan Cover and Main Conduit Box
Grounding Terminal: Inside Main Conduit Box
Conduit Box: Oversized and Rotatable in 90 Degree Increments - F1 Mounted
Ambient Temperature: Designed for 40°C
Elevation: Designed for 3300 ft.
Rotation: Bi-Directional.Shaft: 1045 Carbon Steel
Rotor Construction: Aluminum Die Cast Squirrel Cage
Paint System: Phenolic Rust Proof Base Plus Polyurethane Top Coat
Paint Color: Dark Gray - Munsell 7.5B 3.5/0.5
Bearings: Double Shielded Pre-Packed with MULTEMP SRL for F# 140T - 280T (Non-regreasable)
Bearings: High Quality Ball (or Roller) Regreasable with Mobil Polyrex™ EM Grease for F# 280TS and Larger
Automatic Grease Discharge Fittings on Regreasable Models
Labyrinth Type Metal Flinger on Both Ends for F# 280TS and Larger
Cast Iron Inner and Outer Bearing Caps for F#280TS and Larger
Nameplate: Stainless Steel
Suitable for Inverter Duty (PWM - Pulse Width Modulation) per NEMA MG-1 Part 30(4 5)
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