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TEFC Severe Duty IEEE 841
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IEEE 841 Ultimate E®
TEFC Cast Iron Motors

The Motor of Choice for Petroleum, Pulp & Paper and other Chemical Process Applications.

When your conditions are beyond severe, you’ll need a motor that goes beyond severe duty: IEEE 841 cast iron motors from Lincoln.

IEEE 841 Standards Are Tough; Lincoln’s Standards Are Even Tougher

When we designed our 841 motors we had a decision: make them just “good enough” to meet the specification, or make them even better. We chose the latter. After all, these are motors for some of the nastiest applications around. The result is a motor with the Ultimate in performance:
  • unsurpassed corrosion-resistance
  • exceptional service factors
  • superior insulation system for the Ultimate in long service life


Choose from Two Efficiency Levels
Lincoln gives you two energy-efficiency options: select an Ultimate E1 motor to meet EPAct requirements; or choose an Ultimate E2 model for maximum energy savings. Either way, you’ll enjoy performance well beyond 841 specifications.





GENERAL SPECIFICATIONS:
Frame - 143T-449T

Horsepower - 1-350

RPM - 3600, 1800, 1200

Enclosure - TEFC

Insulation - Premium Class F Plus

Design - B

Paint System - E-coat primer and catalyzed urethane top coat

Salt Fog Test - >300 hrs.

Windings - 100% Copper, 200°C



IEEE 841 motors from Lincoln deliver benefits beyond what's required

841 Spec. Requires:
  • All cast iron construction for frame, brackets, fan cover and terminal box
  • Double NEMA terminal box volume
  • 80°C maximum temperature rise by winding resistance
  • 90 dBA maximum sound power level
  • IP 55 bearing enclosure on frames 324T and larger
  • Foot flatness tolerance to .005 inches
  • Maximum vibration velocity of 0.08 in/sec for 2-, 4-, and 6-pole motors
  • Shaft runout tolerance to .001 inch T.I.R. for shaft diameters to 1.625 inches (0.0015 inch for larger shafts)
  • Test report shipped with each motor
  • Non-sparking conductive fan


Beyond the Spec.- Ultimate E® Motors Deliver Even More:
  • Labyrinth seal on drive end shaft 182T frame motors and up
  • E-coat primer on all surfaces inside and out. There is no better protection from corrosion than our exclusive electrodeposition process. Surpasses 300 hours in salt fog test with no degradation. Motor as well as rotor and shaft surfaces inside enclosure are fully primed. Ultra-rugged urethane finish paint adds final protection
  • Solvent-based varnish tenaciously protects windings far better than water-based varnishes
  • Class F Plus insulation combines Class H and F components to provide an extra 5° C protection for longer life (rated at 160°C vs. standard 155°C)
  • Laser-etched stainless steel nameplate remains easy to read, provides positive identification under worst conditions
  • Two levels of energy-efficiency available
  • 1.25 service factor on 1 to 75HP (1800 RPM) to handle unexpected peak loads with confidence
  • Tremendous torques—you get the starting torques normally associated with specialty motors such as Design C, from our standard off-the-shelf motor
  • 5-year warranty
  • Made in the U.S.A.


BEARING SIZES (SINGLE EXTENSION)
FOOT MOUNT AND C-FACE:
Frame Size DE Opp DE
143T-145T 205 203
182T-184T 207 205
213T-215T 208 206
254T-256T 309 208
284T/TS-286T/TS 312 309
324T/TS-326T/TS 313 312
364T/TS-365T/TS 314 313
404T/TS-405T/TS 315 314
444T-449T
(4&6 poles)
318 318
444TS-449TS
(2 poles)
315 315


For more information, request Lincoln's LC100 Industrial and Commercial AC Motor Catalog and Product Bulletin E52