Marathon Electric 256TTFNA4030 Product Information Packet

PRODUCT INFORMATION PACKET

Model No: 256TTFNA4030

Catalog No: U653

20 HP General Purpose Motor, 3 phase, 1800 RPM, 575 V, 256T Frame, TEFC

Three Phase TEFC Motors

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

©2019 Regal Beloit Corporation, All Rights Reserved. MC017097E

1 of 41 of 41 of 41 of 41 of 41 of 41 of 41 of 41 of 41 of 41 of 41 of 41 of 41 of 41 of 41 of 41 of 41 of 41 of 41 of 41 of 41 of 41 of 41 of 41 of 4

Product Information Packet: Model No: 256TTFNA4030, Catalog No:U653 20 HP General Purpose Motor, 3 phase, 1800 RPM, 575 V, 256T Frame,
TEFC

Nameplate Specifications

Output HP 20 Hp Output KW 14.9 kW
Frequency 60 Hz Voltage 575 V
Current 20 A Speed 1765 rpm
Service Factor 1.15 Phase 3
Efficiency 91 % Power Factor 82
Duty CONTINUOUS Insulation Class F
Design Code B KVA Code F
Frame 256T Enclosure TEFC
Thermal Protection NOT Ambient Temperature 40 °C
Drive End Bearing Size 6309 Opp Drive End Bearing Size 6210
UL Recognized CSA Y
CE Y IP Code 43

Technical Specifications

Electrical Type SQ CAGE IND RUN Starting Method ACROSS THE LINE
Poles 4 Rotation REV
Resistance Main 0.468 Ohms Mounting RIGID
Motor Orientation HORIZONTAL Drive End Bearing BALL
Opp Drive End Bearing BALL Frame Material CAST IRON
Shaft Type T Overall Length 25.27 in
Frame Length 12.25 in Shaft Diameter 1.63 in
Shaft Extension 4.2 in Assembly/Box Mounting F1/F2 CAPABLE

This is an uncontrolled document once printed or downloaded and is subject to change without notice. Date Created:01/11/2019

2 of 42 of 42 of 42 of 42 of 42 of 42 of 42 of 42 of 42 of 42 of 42 of 42 of 42 of 42 of 42 of 42 of 42 of 42 of 42 of 42 of 42 of 42 of 42 of 42 of 4