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Weg Electrical Motors .com

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Weg NEMA Premium Efficiency - Three Phase Motors

WEG’S W21™ NEMA Premium motors meet or exceed all NEMA Premium and CEE requirements for energy efficiency.

These TEFC motors are built according to NEMA specifications and designed for operation in moist or dusty atmospheric conditions without affecting their useful life. Premium Efficiency WEG motors are tested according to IEEE 112 std., method ‘B’ and their efficiency values are certified by UL Labs (CSA C390). Cooling Tower motors will meet will meet Design B torques, maintaining exceedingly high breakdown and locked rotor torque while providing the highest rated efficiency levels.

Weg NEMA Premium Efficiency - Three Phase TEFC Motors

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

• Three-phase, II, IV, VI and VIII pole, 60Hz
• Voltage: 208-230/460V, 200V, 460V or 575V
• 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 Design ‘B’
• Most ratings meet Design C Torque
• Service factor: 1.25 up to 100HP, 1.15 from 125HP and up
• Continuous duty (S1)
• 104F (40C) ambient temperature
• Altitude: 3300 ft (1000m)
• NPT threaded terminal box
• F1 mount
• Stainless steel nameplate AISI 316 with laser etching
• Color: RAL 6002 (Green)
• Automatic drain plugs - pressure compensated
• Regreasable bearings positive pressure lubrication system (frames 254T and up)
• Gasketed conduit box
• MGI Part 31 rating for use with VFD - 20:1 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)
• Thermistor, 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
• Labyrinth taconite seal available on all ratings

APPLICATIONS

• Chemical plants
• Compressors
• Pulp and paper mills
• Crushers
• Refineries
• Pumps
• Steel mills
• Fans
• Cement mills
• Packaging equipment

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