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Weg Electrical Motors .com

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Weg W21 High Efficiency General Purpose - Three Phase Motors

WEG’s W21™ Severe Duty High Efficiency motors are designed to meet or exceed all EPAct requirements for energy efficiency as defined by the DOE. The efficiency values are certified according to the DOE’s regulations (Certificate of Compliance number CC029A). W21™ motors meet the most demanding severe duty application requirements. These TEFC motors are all cast iron construction, with enclosures rated IP55 to handle wet and dirty environments. They are painted with WEG’s own special system, using synthetic enamel alkyd resin paints, which exceed the ASTM B117 standard for salt spray test. The W21™ line is rated for 1.25 Service Factor up to 100HP. This line is rated for dual frequency and dual voltage (with reduced service factor) up to 60 HP. The entire line is certified Inverter Rated for use with a VFD. This rating meets or exceeds MG1 Part 31 NEMA Specifications.

Weg High Efficiency General Purpose - Three Phase

WEG: Quality From The Ground Up


FAN COVER
Steel covers on 143T up to 215T frames and cast iron on frames 254T and up.

BEARINGS
The bearings are dimensioned to ensure long life to the motor, even under heavy working conditions. Positive pressure lubrication system includes a drain plug that allows the outflow of excess grease on 254T frames up to 586/7.

EYEBOLT
For easy handling, motors 184T frames and larger are provided with an eyebolt. Footless motors are provided with two eyebolts.

FRAME
Made of FC-200 cast iron, with external fins for maximum cooling effect.

NAME PLATE
Stainless steel nameplate contains a complete and permanent record of all motor data (according to NEMA requirements).

ROTOR
Aluminum die cast into a magnetic steel lamination for low electric losses. Dynamically balanced for smooth operation, reduced vibration and noise.

FAN
Made of rigid plastic from frames 143T up to 505T and aluminum for frame 586/7. Non sparking, non toxic, resistant to environmental conditions, and ensures low noise operation.

TERMINAL BOX
Oversized, cast iron construction. Gasketed lid and between box and frame. NPT threads holes to connect conduit or cable glands.

WINDING
All copper winding wire enameled with class “H” polyester varnish. Insulating materials of high dielectric rigidity and solvent free polyester resin providing excellent mechanical resistance.

STATOR
Made of silicon steel laminations thermochemically treated to improve the electric characteristics, reducing electric losses and the operating temperature.

ENDSHIELDS
Made of cast iron, with external fins for heat dissipation. They also have polished bearing housings for longer bearing life.

V-RING SLINGER
In both endshields to protect bearings and motor from the aggressive components present in the environment.

DRAIN PLUGS
Provided with automatic drain plug that quickly drains condensation.

STANDARD FEATURES (Frames 143T and up) – Cast Iron

• Efficiency Certification number CC029A according to US Department of Energy Regulations
• Three-phase, II, IV, VI and VIII pole, 60Hz
• Voltage: 208-230/460V, 200V, 460V or 575V
• 50/60Hz rated up to 60HP (Same HP for both frequencies) (For 75HP and up please contact your sales office)
• Totally Enclosed Fan Cooled - TEFC (IP55) water tight and dust tight enclosure
• Squirrel cage rotor / Aluminum die cast
• V-ring slingers on both endshields (586/7 frame equipped with labyrinth taconite seal as standard)
• Ball bearings are supplied as standard (RB part numbers supplied with roller bearings)
• 1045 Carbon Steel Shaft for frames up to 365T.
• 4140 steel shaft for motors 404T and above. (3600 RPM motors supplied with 1045)
• NEMA dimensions
• Class ‘F’ insulation for all frames
• Class ‘H’ impregnation resin
• Temperature rise: Class ‘B’ (80C)
• NEMA ratings design ‘B’
• Most ratings meet Design C Torque*
• Service Factor: 1.25 up to 100HP 1.15 from 125 HP and up
• Continuous duty (S1)
• F1 mounted T-Box (F2 mounted capable)
• Stainless steel nameplate AISI 316 with laser etching
• Paint: Synthetic enamel alkyd resin base (exceeds ASTM B117 salt spray test)
• Color: RAL 5007 - Blue (II, IV and VI pole)
• Automatic drain plugs - pressure compensated
• Regreasable bearings, positive pressure lubrication system (frames 254T and up)
• Gasketed conduit box
• Roller bearing models available
• MGI Part 31 rating for use with VFD at 12:1 constant torque speed range. Speed range can be extended with optional Blower Kit
• Class 1, Div 2, Groups B, C & D, T3C

OPTIONAL FEATURES

• Special voltages
• Specially designed shaft
• Space heaters (standard on 586/7 frames)
• Labyrinth taconite seal available for all ratings
• Thermistors, Thermostats or RTD’s (PT100)
• Additional terminal box
• Drip cover (canopy) for shaft down applications
• Cable glands
• ‘C’ and ‘D’ flanges for all ratings
• Roller bearings on drive end available for all frames
• Special epoxy painting

APPLICATIONS

• Pumps
• Fans
• Crushers
• Conveyors
• Machine tools
• Milling applications
• Centrifugal machines
• Presses
• Elevators
• Looms
• Grinders
• Woodworking
• Cooling
• Packaging equipment
• Other Severe Duty applications

Weg Rolled Steel Line High Efficiency - Three Phase TEFC


Weg Electric Motors

STANDARD FEATURES

• Frames (143/5T up to 254/6T)
• Voltages: 208-230/460V
• Degree of Protection: IP55
• V’ring seal
• Ball bearings (ZZ up to 256T)
• Plastic fan
• Class “F” insulation
• Service factor: 1.15
• Color: Munsell N1 (Black)

OPTIONAL FEATURES

• Voltage: 575V and others
• Degree of Protection: IP56
• Lip seal, Oil seal
• Class “H” insulation
* More options available upon request

APPLICATIONS

• Pumps
• Compressors
• Fans
• Machine Tools
• Other General Purpose

Weg W2 High Efficiency - Three Phase ODP


High Efficiency motors are designed to meet or exceed all EPAct requirements for energy efficiency as defined by the DOE. The efficiency values are certified according to the DOE’s regulations (Certificate of Compliance number CC029A).
These Open Drip Proof (ODP) motors are designed for environments where dirt and moisture are minimal and provide maximum ventilation and heat dissipation. Design B torque and high efficiency design from 143T through 444/5T frames.

Weg Electric Motors

STANDARD FEATURES (143T & UP)

• Efficiency Certification number CC029A according to US Department of Energy Regulations
• Three-phase, II, IV, VI and VIII pole, 60Hz
• Voltage: 208-230/460V, 200V, 460V or 575V
• 50/60Hz rated up to 250 HP (50Hz at 1.0 Service Factor)
• For 50Hz at 1.15 SF a higher HP should be selected
• Open Drip Proof (ODP)
• NEMA dimensions
• NEMA design ‘B’ ratings
• Service Factor : 1.15
• Class ‘F’ insulation for 143T & above Class ‘B’ insulation for 56 Frame
• Class ‘H’ impregnation resin
• Continuous Duty (S1)
• 104F (40C) ambient temperature
• Ball bearings are supplied as standard
• 1045 Carbon Steel Shaft for frames up to 365T.
• 4140 steel shaft for motors 404T and above. (3600 RPM motors supplied with 1045)
• F1 mount (also available flanged motors)
• Paint: Enamel alkyd resin base
• NPT threaded terminal box
• Stainless steel nameplate - laser etched
• MGI Part 31 rating for use with VFD - 4:1 constant torque speed range.

SPECIFIC FEATURES


For Frames 143/5T only
• Welded steel plate frames (welded feet) • Cast iron endshields fixed with through bolt construction
• ZZ bearing (double shielded)
• Degree of protection: IP21

182/4T and 213/5T frames only
• Aluminum endshields and terminal box
• Cooling system with finned rotor
• ZZ Bearing (double shielded)
• Degree of protection : IP21

For Frames 254/6T and up
• Cast iron frames
• Cast iron endshields and terminal box
• Cooling system with finned rotor
• Regreasable bearings positive pressure lubrification system (frame 254T and up)
• Degree of protection: IP23

OPTIONAL FEATURES

• Special voltages
• Specially designed shaft
• Thermistor, Thermostats or RTD’s (PT100)
• Additional terminal box
• Cable glands
• ‘C’ and ‘D’ flanges for all ratings
• Roller bearings on drive end available for all frames
• Special epoxy painting

APPLICATIONS

• Pumps
• Fans
• Kneader and mixer machines
• Cutter and sawing machines
• Pressing machines
• Industrial equipment
• Conveyors
• Blowers
• Compressors
• Machinery
• Cranes
• Packaging Equipment