Marathon Electric E621-P Product Information Packet

PRODUCT INFORMATION PACKET

Model No: 256TTFNA16855

Catalog No: E621-P

20 HP Severe Duty Motor, 3 phase, 1800 RPM, 460 V, 256T Frame, TEFC

Other Severe Duty Motors

Regal and Marathon are trademarks of Regal Beloit Corporation or one of its affiliated companies.

©2020 Regal Beloit Corporation, All Rights Reserved. MC017097E

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Product Information Packet: Model No: 256TTFNA16855, Catalog No:E621-P 20 HP Severe Duty Motor, 3 phase, 1800 RPM, 460 V, 256T Frame,
TEFC

Nameplate Specifications

Output HP 20 Hp Output KW 14.9 kW
Frequency 60 Hz Voltage 460 V
Current 24.1 A Speed 1775 rpm
Service Factor 1.15 Phase 3
Efficiency 93 % Power Factor 84
Duty Continuous Insulation Class F
Design Code B KVA Code G
Frame 256T Enclosure Totally Enclosed Fan Cooled
Thermal Protection No Ambient Temperature 40 °C
Drive End Bearing Size 6309 Opp Drive End Bearing Size 6210
UL Recognized CSA Y
CE Y IP Code 54

Technical Specifications

Electrical Type Squirrel Cage Inverter Rated Starting Method Line Or Inverter
Poles 4 Rotation Reversible
Resistance Main .474 Ohms Mounting Rigid Base
Motor Orientation Horizontal Drive End Bearing Ball
Opp Drive End Bearing Ball Frame Material Cast Iron
Shaft Type T Overall Length 25.40 in
Frame Length 12.25 in Shaft Diameter 1.625 in
Shaft Extension 4.2 in Assembly/Box Mounting F1/F2 CAPABLE
Connection Drawing EE7300 Outline Drawing SS203002-1225

This is an uncontrolled document once printed or downloaded and is subject to change without notice. Date Created:07/07/2020

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