Marathon Electric U501A Product Information Packet

PRODUCT INFORMATION PACKET

Model No: 256TTDBD4020 Catalog No: U501A 25,3600,DP,256T,3/60/190/380-400 Fire Pump

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

©2018 Regal Beloit Corporation, All Rights Reserved. MC017097E

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Product Information Packet: Model No: 256TTDBD4020, Catalog No:U501A 25,3600,DP,256T,3/60/190/380-400

Nameplate Specifications

Output HP	25 Hp	Output KW	18.7 kW
Frequency	60 Hz	Voltage	190/380-400 V
Current	70.0/35.0-33.5 A	Speed	3550 rpm
Service Factor	1.15	Phase	3
Efficiency	91 %	Duty	Continuous
Insulation Class	F	Design Code	B
KVA Code	G	Frame	256T
Enclosure	Drip Proof	Overload Protector	No
Ambient Temperature	50 °C	Drive End Bearing Size	6209
Opp Drive End Bearing Size	6208	UL	No
CSA	Y	CE	Y
IP Code	23

Technical Specifications

Electrical Type	Squirrel Cage Induction Run	Starting Method	Part Wdg Start Low Volt Only & Wye Start
			Delta Run
Poles	2	Rotation	Reversible
Mounting	Rigid base	Motor Orientation	HORIZONTAL
Drive End Bearing	BALL	Opp Drive End Bearing	BALL
Frame Material	Rolled Steel	Shaft Type	T
Overall Length	24.22 in	Frame Length	12.20 in
Shaft Diameter	1.625 in	Shaft Extension	4.00 in
Assembly/Box Mounting	F1/F2 CAPABLE
Outline Drawing	SS620685-256T	Connection Diagram	EE7308AA

This is an uncontrolled document once printed or downloaded and is subject to change without notice. Date Created: 10/30/2018

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