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 »
Electric Motors
: IEEE 841™ Motors
: Three-Phase: W22 IEEE-841™ Petrochem Motors - NEMA Premium® Efficiency
Catalog Number: 02018ST3HIE256T-W22
WEG id: 11594866
Description
WEG's W22 NEMA Premium motors meet or exceed all NEMA Premium® requirements for energy efficiency. These WEG IEEE 841 W22 NEMA Premium Efficiency Mill and Chemical Duty Motors are specially suited for Pulp and Paper Mills, Petrochemical, Steel Mills and applications requiring Severe Duty long life motors.
Applications
Pumping applications
Pulp and paper mills
Petrochemical
Standard Features
Three-phase, 2, 4, 6 or 8 pole, 60Hz
Voltage: 460 or 575V (3 wire)
Totally enclosed fan cooled (TEFC)
Degree of protection: IP55
Class "F" insulation ("B" Temperature rise at full load)
104 °F (40ºC) ambient temperature
Service Factor: - 1.25 - up to 100 HP; - 1.15 - from 125HP and up
Squirrel cage rotor / Aluminum die cast
143T up to 586/7 cast iron frame
All cast iron reinforced construction: frame, endshields, terminal box and fan cover
F1 mounting
Stainless steel nameplate
INPRO/SEAL® on drive end and opposite drive end
External paint: Epoxy polyamide enamel, meets 240h salt spray as per ASTM B117-03
Internal corrosion resistant epoxy finish
Color: RAL 5009 (Blue)
Regreasable ball bearings D.E. and O.D.E
Grease outlet through the fan cover
High tensile steel shaft (for frame 404T and up – 4 poles and up)
Fan: Conductive plastic or Bronze
“T” type stainless steel condensate drain
Balance quality grade G1
Solid milled feet
Foot flatness 0.005 in (0.127 mm)
Hex-head bolts or socket-head cap srews and organometalic surface lining
Stainless steel grease inlet extension
Minimum Bearing life L10h: 50,000 hours for directed-connected loads and 26,280 hours belted
Optional Features - Call Dealers for information on price and availability of optional features
Special voltages
Specially designed shaft
Space heaters
Thermostats or RTD's (Pt-100)
Additional terminal box
Drip cover (canopy) for shaft down applications
Cable glands
Terminal block
Flange mounting
Roller bearings
Notes
All motors supplied with IEEE 841 Test ReportAll WEG motors are energy efficiency verified by CSA and UL in addition to the DOE.
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