WEG’s W21™ NEMA Premium motors meet or exceed all NEMA Premium and CEE requirements for energy efficiency.
These WEG IEEE 841 High 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.
STANDARD FEATURES
• Three-phase, II, IV or VI pole, 60Hz
• Voltage: 460V (3 wire)
• Totally enclosed fan cooled (TEFC)
• Inproseal
• Degree of protection: IP55
• Class ‘F’ insulation
(‘B’ Temperature rise)
• Class ‘H’ resin
• Service Factor:
° 1.25 - up to 100 HP
° 1.15 - from 125HP and up
• Squirrel cage rotor / Aluminum die cast
• 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 with1045)
• 143T up to 586/7 cast iron frame
• All cast iron reinforced construction: frame, endshields, terminal box
and fan cover
• Stainless steel nameplate
• NEMA Ratings Design ‘B’
• Corrosion resistant epoxy finish
• Color: RAL 6002 (Green)
• Regreasable ball bearings
D.E. and O.D.E.
• Class 1, Div 2, Groups B, C & D, T3C
SPECIAL INCLUDED FEATURES
• Color: RAL 6002 (Green)
• IP55 and IP65: This brass seal has no
contact surfaces to wear out.
• Bearing life 50,000 hours
• Paint: Epoxy polyamide enamel
• Non-sparking fan
• Internal epoxy paint
OPTIONAL FEATURES
• Special voltages
• Specially designed shaft
• Space heaters
• Second shaft end
• Thermistor, Thermostats or RTD’s (PT100)
• Additional terminal box
• Drip cover (canopy) for shaft down applications
• Cable glands
• Flange mount
APPLICATIONS
• Pumping applications
• Pulp and paper mills
• Petrochemical
• Other