Marathon Electric M821A Product Information Packet

PRODUCT INFORMATION PACKET

Model No: 256TTDX4310

Catalog No: M821A

25 HP Vertical Solid Shaft P-Base Motor, 3 phase, 3600 RPM, 230/460 V, 256HPV Frame, ODP

Vertical Solid Shaft P-Base Motors

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©2020 Regal Beloit Corporation, All Rights Reserved. MC017097E

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Product Information Packet: Model No: 256TTDX4310, Catalog No:M821A 25 HP Vertical Solid Shaft P-Base Motor, 3 phase, 3600 RPM, 230/460 V,
256HPV Frame, ODP

Nameplate Specifications

Output HP 25 Hp Output KW 18.7 kW
Frequency 60 Hz Voltage 230/460 V
Current 58.0/29.0 A Speed 3520 rpm
Service Factor 1.15 Phase 3
Efficiency 91 % Power Factor 88.3
Duty Continuous Insulation Class B
Design Code B KVA Code G
Frame 256HPV Enclosure Drip Proof
Thermal Protection No Ambient Temperature 40 °C
Drive End Bearing Size 6309 Opp Drive End Bearing Size 6208
UL Recognized CSA Y
CE Y IP Code 22

Technical Specifications

Electrical Type Squirrel Cage Induction Run Starting Method Across The Line
Poles 2 Rotation Reversible
Resistance Main .365 Ohms Mounting Round
Motor Orientation Shaft Down Drive End Bearing Ball
Opp Drive End Bearing Ball Frame Material Rolled Steel
Shaft Type HP Overall Length 24.30 in
Frame Length 15.15 in Shaft Diameter 1.625 in
Shaft Extension 2.75 in Assembly/Box Mounting F1/F2 CAPABLE
Outline Drawing A-SS86538-1515 Connection Drawing A-EE7308

This is an uncontrolled document once printed or downloaded and is subject to change without notice. Date Created:03/11/2020

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