High performance with maximum energy efficiency is the goal of the new WEG electric motor. High efficiency and low cost of ownership throughout the entire motor lifetime have been the basis for the W22 development. A design created to maximize performance and energy savings.
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.
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NEMA Premium Efficiency Motors
High performance with maximum energy efficiency is the goal of the new W22 electric motor. High efficiency and low cost of ownership throughout the entire motor lifetime have been the basis for the W22 development. The design is created to maximize performance and energy savings.
New Cooling System
Designed to provide optimized air flow through all motor frames keeping low operational temperatures and assuring reliability and extended lifetime. The aerodynamic design of the fan cover optimizes effective airflow, thus minimizing losses due to the recirculation of air between fan and fan cover. The fan was designed to provide strength and reduced noise level. Motor terminal box and eyebolts are positioned on larger frames to allow better airflow.
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Terminal Box
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Exclusive Bearing Sealing System
Extends motor lifetime when operating in aggressive environments by protecting the motor against water and dust guaranteeing proper degree of protection. |
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Frame
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Motor feet are solid providing a highly resistant structure against vibration. The frame design has points that can be used as provisions for vibration sensors as a standard feature.
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General Purpose
TEFC - NEMA Premium
High performance with maximum energy efficiency is the goal of the new WEG electric motor. High efficiency and low cost of ownership throughout the entire motor lifetime have been the basis for the W22 development. A design created to maximize performance and energy savings.
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.
- 50/60 Hz rated (380 V on nameplate - 400/415 available)
- Rated 50 Hz at same horsepower up to 250 HP 1.0 service factor for 2, 4 & 6 pole motors
- Rated 50 Hz at same horsepower up to 125 HP 1.0 service factor for 8 pole motors
- 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
- Regreasable ball bearings (frames 254T and up)
- Gasketed conduit box
- Class I, Div. 2, Groups A, B, C & D – T3, Class II, Div 2, Groups F & G – T3C
Features That Make a Difference:
- 1.25 service factor up to 100 HP
- Optimized ventilation system for cooler operation and reduced noise levels
- Solid base for reduced vibration levels
- Frames 447T and up can easily be F2 converted by simply rotating the terminal box adapter
- NPT threaded terminal box
Inverter Rated:
1000:1 for variable torque
20:1 for constant torque
* Frame 586/7 250 HP and up 6:1 CT and 1000:1 VT
IEEE 841 - Three Phase
TEFC - NEMA Premium
WEG's IEEE841 motors are specially suited for pulp and 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.
- 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
Features That Make a Difference:
- 1.25 service factor up to 100 HP
- INPRO/SEAL® 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 250 hrs 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
Inverter Rated:
1000:1 for variable torque
20:1 for constant torque
* Frame 586/7 250 HP and up 6:1 CT and 1000:1 VT
Crusher Duty - Three Phase
TEFC - NEMA Premium
Designed for the most demanding crusher applications, these motors are designed for horizontal and vertical mounting and have exceptional high starting and breakdown torques. 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.
- 50/60 Hz rated (380 V on nameplate - 400/415 available)
- Rated 50 Hz at same horsepower up to 250 HP 1.0 Service Factor for 2, 4 & 6 pole motors
- Class F insulation (impregnation resin and magnet wire are Class H)
- NEMA design A - all ratings exceed NEMA design C torque
- 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
- Regreasable ball bearings
- Gasketed conduit box
- Class I, Div. 2, Groups A, B, C & D – T3, Class II, Div 2, Groups F & G – T3C
Features That Make a Difference:
- Oversized roller bearings
- Versatile starting methods - capable of wye/delta, across the line and part winding (12 leads) start
- Largest diameter shafts ("Z" Frames) for the highest load ratings in the industry - high efficiency only
- Labyrinth seal on both ends ("Z" Frames) - high efficiency only
- NPT threaded terminal box
Inverter Rated:
1000:1 for variable torque
20:1 for constant torque
Vector Duty - Three Phase
TENV - Foot Mount - Double C-Face
Designed specifically for inverter operation for applications requiring 1000:1 constant torque turndown ratio.
- Class F insulation (impregnation resin and magnet wire are Class H)
- NEMA design B
- F1 mounted (F2 convertible)
- Stainless steel nameplate - laser etched with high contrast background
- Gasketed conduit box
- Class I, Div. 2, Groups A, B, C & D – T3, Class II, Div 2, Groups F & G – T3C
Features That Make a Difference:
- Constant torque operation from 0 to base speed (1000:1) on PWM vector drive
- Constant horsepower operation up to 150% base speed
- Ready for encoder mount
- With thermostats (1 per phase)
- Special nameplate data for easy drive set-up
- Ready for C-face brake, limited to 10 lb-ft braking torque
Inverter Rated:
1000:1 for constant torque
IEC Tru-Metric™ - Three Phase
TEFC - Foot Mount
This line is designed and built according to European IEC34 and IEC79 standards.
- 60 Hz (1.15 service factor) and 50 Hz (1.0 service factor)
- Class F insulation (impregnation resin and magnet wire are Class H)
- F2 mounted as standard (F1 convertible)
- Stainless steel nameplate - laser etched with high contrast background
- Regreasable ball bearings (Frames 160 and up)
- Gasketed conduit box
- Class I, Div. 2, Groups A, B, C & D – T3, Class II, Div 2, Groups F & G – T3C
- Suitable for wye/delta start (W and Y voltage code motors)
Features That Make a Difference:
- 1.25 service factor for 60 Hz operation (IE3)
- 1.15 service factor for 60 Hz operation (IE2)
- Optimized ventilation system for cooler operation and reduced noise levels
- Solid base for reduced vibration levels (cast iron frames)
- Frames 225 and up can easily be F1 (B3L) converted by simply rotating the terminal box adapter or F3 by removing it
- Aluminum frames have removable feet for easy F1, F2 and F3 (B3L, B3R, B3T) conversion
- Terminal blocks
Inverter Rated (IE3):
1000:1 for variable torque
12:1 for constant torque
* IE2 is 10:1 VT and 4:1 CT
