Severe Duty Three-Phase Motors
IEEE 841 - THREE PHASE
TEFC - NEMA Premium
WEG’s IEEE 841 motors are specially
suited for Pulp & Paper mills, Steel
mills, Petrochemical Plants and diverse
demanding applications requiring severe
duty long life motors.
WEG’s W22 cast iron platform has an
improved cooling system and solid feet for
cooler operation and reduced vibration and
noise extending the life of the motor.
Standard Features:
- Class F insulation (Impregnation Resin
and magnet wire are class H)
- F1 Mounted (F2 convertible). Frames 447T
and up can easily be F2 converted by
simply rotating the terminal box adapter
- Stainless Steel Nameplate - Laser etched
with high contrast background
- All frames with regreasable ball bearings
- Class I, Div. 2, Groups A, B, C & D – T3,
Class II, Div 2, Groups F & G – T3C
Inverter Rated:
1000:1 for variable torque
20:1 for constant torque
* Frame 586/7 250HP and up 6:1 CT and 1000:1 VT
ADDITIONAL TECHNICAL DATA
ELECTRICAL DATA:
- B-6
MECHANICAL DATA:
- C-2
Features that make a difference:
- 1.25 service factor up to 100 HP
- InproSeal Bearing Isolators both ends
- Bearing protection meets IP56
- Rubber lead separator between terminal
box and frame
- Vibration: 0.04 inches per second or less
- Guaranteed foot flatness to within 0.005”
- Bearing life 50,000 hours (L-10)
- Epoxy Paint system exceeds 250hrs Salt
Fog test
- Interior surfaces are epoxy coated
- Non-sparking fan
- NPT Threaded terminal box
- Seamless copper lead lugs
- Seamless Stainless Steel grease
extension tubes
- Automatic grease relief fittings
- IEEE 841 Test Report in conduit box
- Suitable for IEEE45 USCG 259 – Marine
Duty
W22 IEEE841 Severe Duty Motors
1-500HP
The WEG W22 product is the latest generation of Severe Duty Cast Iron frame industrial motors designed to meet the demands of Reliability, Efficiency, and Total Cost of Ownership todays’ customers demand, and have come to expect from WEG.
Standard Features
- Heavy Duty FC200 Cast Iron Frame Brackets, Conduit Box and Fan
Cover
- Motor rated IP55
- InproSeal VBXX seals rated IP56 on both bearings
- C4 coated Silicon core steel withstands >500C burnout temps for
superior repairability
- Dual drilled mounting Feet for increased flexibility
- Foot flatness of <.005” and paint free feet aid mounting and alignment
- Regreasable ball bearings with WEG Positive Pressure Lubrication
System (PPLS) including Cast Iron bearing caps, Seamless Stainless
Steel grease inlet extensions, and Auto grease relief
- Forged shouldered eyebolts for safe handling (180T and above)
- Stainless Steel automatic condensate Drains in both endshields
- 4-Bolts Conduit Box and Cover with Neoprene gaskets for sure seal
- VFD Rated Class F insulation system per NEMA MG1 Part 31 utilizing
Class H Varnish and Magnet wire
- Stainless Steel Nameplate includes Weight, Division 2, and lubrication
information
- IEEE 841 Test report with Vibration data included in the conduit box
Features That
Make a Difference:
- Low Vibration design
.04 in/sec (1/2 IEEE 841 Spec)
- C4 Coated Silicon Core Steel
- Highest Service Factor in the
industry 1.25SF on <125HP
- Bearings meet IP56 with
InproSeal VBXX on both ends
- Epoxy Paint system exceeds
250Hrs Salt spay per
ASTMB117
Custom features and options
available as factory modifications
as well as many stock
modifications for quick delivery
