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 »
VERTICAL SOLID SHAFT TEFC HIGH THRUST with "P" BASE - LOW VOLTAGE
AEEHED (MAX-VSP), PREMIUM EFFICIENCY [VSTP]
APPLICATIONS:
Deep Well Turbine Pumps
Irrigation
Water/Wastewater
FEATURES:
Output: 250 HP
Speed: 1800 RPM
Voltage: 460 Volts @ 60 Hz
(230/460V Motors Suitable for Partial Winding Start (at 230V Only))
Frame: 449VP
Full Load Efficiency: 96.2%
Full Load Power Factor: 83.1%
Full Load Amperage: 292A
Enclosure: Totally Enclosed Fan Cooled (IP55)
Service Factor: 1.15 (Continuous on Sine Wave Power)
Inverter Duty: (PWM) per NEMA® MG-1 Part 31 at 1.0 Service Factor
New Dual Column (60/50 Hz) Design Nameplate as Standard; 50 Hz Data 190/380V at 1.0 S.F.
Standard Features: Non-Sparking Ball Type NRR; Drip/Splash Cover; Space Heaters (120V)
CSA Certified: for Class I Div. 2 Groups B C D; Temp Code T3 Maximum
Insulation: Class F with Phenolic Alkyd Resin Varnish
Temperature Rise: Class B
NEMA Design B Torques
Conduit Box: Oversized Rotatable in 90 Degree Increments - Fully Gasketed with NPT Threaded Entrance
Conduit Box: Cast Iron for F#449TP and Below; Steel Plate for F#5000
Ambient Temperature: Designed for < 40°C
Elevation: Designed for < 3300 ft.
Rotation: Counterclockwise (CCW); Viewed from Top
Construction: Cast Iron Frame & End Brackets
Shaft: 1045 Hollow Carbon Steel
Rotor Construction: Aluminum Die Cast Squirrel Cage
Paint System: Phenolic Rust Proof Base Plus Polyurethane Top Coat
Paint Color: Blue - Munsell 5PB 3/8
Guide Bearings: 213TP - 286TP frames are Double Shielded
Guide Bearings: 324TP - 449TP frames are Re-Greasable with Mobil Polyrex™ EM Grease
Thrust Bearings: 213TP - 286TP frames are Re-Greasable Angular Contact with Mobil Polyrex™ EM Grease
Thrust Bearings: 324TP - 449TP frames are Oil Lubricated Angular Contact with Site Glass
Oil Requirements: for 324TP-405TP - 145 to 175 S.S.U. @100°F
Oil Requirements: for 444TP-449TP - 300 S.S.U. @100°F
Grounding Terminal: Inside Main Box
Stainless Steel Nameplate and Rodent Screens
12 Leads (PWS on 230V) on 213 - 405TP (Suitable for Wye/Delta start at 230V or 460V.)
6 Leads on 444TP to 449TP; 5000 Frames and Above with Connection Studs (Suitable for Wye/Delta start at 460V.)
Inverter Duty: 4:1 Variable Torque with NRR. 10:1 C.T.; 20:1 VT without NRR Using Braking in VFD
Precautions should be taken to eliminate or reduce shaft currents that may be imposed on the motor by the VFD as stated per NEMA MG1 Part 31.4.4.3 for AMRCNH (Part 30 on AMRC)
Note: Stock catalog image shown. Actual motor may differ.
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