Need Help? Call (302) 653-1844

20HP MARATHON 1800RPM 284TC 230/460V EPNV 3PH MOTOR Y985

Catalog Number:  Y985
Model Number:  284THEN8032
Description:  20HP,1800RPM,284TC,230/460V,EPNV,3PH,60HZ
Design: 2000:1 Constant Torque
Ship Weight:  555 lbs.

This Marathon Motor Can Only Ship Ground Freight
For expedited needs please contact our sales team.

APPLICATIONS: Designed for industrial applications with Vector Drives where up to a 2000:1 constant torque speed range and/or precise speed or torque regulation is required, including positioning equipment. Used in dirty, dusty or caustic environments where cast iron construction is required, and installed in hazardous environments as defined by the motor’s explosion proof class and group rating.


  • BEI H38 explosion proof encoder 1024 ppr, Class I Groups C & D, Class II Groups E, F, G included
  • Cast iron frame and brackets
  • MAX GUARD® Class F insulation system
  • Constant torque operation from 0 to base speed on vector drive
  • Constant HP operation up to twice base speed
  • Continuous duty at 40ºC ambient
  • Optimized for operation with IGBT inverter (NEMA Design A)
  • Normally closed thermostats (one per phase, Class F)
  • Ball Bearings
  • F1 standard, NOT field reversible to F2
  • UL Listed File No. E12044, MC228275
  • CSA Certified File No. LR47504, MC236833
  • Meets temperature code T38
  • Three year warranty
  • Suitable for Group C
  • Footnotes: CD

Phase 3 Insulation Class F
Enclosure EPNV Ambient 40
Mounting C-Face Rigid NEMA Design A
Orientation HORIZONTAL Starting Type INVERTER ONLY
Assembly F1 ONLY KVA Code M
Drive End Bearing BALL IP Code 54
Opposite End Bearing BALL    
Drive End Bearing Size 6311    
Opposite End Bearing Size 6311 Hazardous Location EXP PROOF CL I GR C&D CL II GR F&G T3C
Weight 555 LB lbs Inverter Speed Range CONSTANT 2000:1
UL UL Listed
Thermal Protection Thermostats (Normally Closed)
20HP MARATHON 1800RPM 284TC 230/460V EPNV 3PH MOTOR Y985
Click Image to Enlarge
Image for quick reference only
Manufacturer Part Number: Y985
Stock # Y985
Price: $6,489.00
Compare At: $14,949.00

Product Reviews

There are currently no customer reviews for this product.

Be the first to write a review!
We value your opinion. Please take a moment and share what you like or don't like about a product.

Write a review now

Subscribe to Our Newsletter to Receive Updates