Marathon U354A 20 HP, 1800 RPM three-phase JM pump motor with a 256JM NEMA frame and Totally Enclosed Fan Cooled enclosure. Operates on 230/460V at 60 Hz with a 1.15 service factor. Designed for close-coupled pump applications in industrial and commercial settings.

Marathon® AC Motor, 4-Pole Continuous Duty Low Voltage, Application Type: Close Coupled Motors, Special Features: Squirrel Cage Induction Run Motors, 20 hp, 230/460 VAC, 48/24.1 A, 60 Hz, 3 ph, 1775 rpm, 1 Speed, IP43 TEFC Enclosure, 256JM Frame, 1-3/4 in Dia x 5-1/4 in L Extension Shaft, Reversible, Service Factor: 1.15, Deep Groove Ball Bearing, 59.2 ft-lb Full Load Torque, Rigid Base Mount, 40 deg C, Insulation Class: Class F, Aluminum, Constant Torque Speed Range: 2:1, Variable Torque Speed Range: 10:1, 27.27 in W x 17.11 in D x 14.43 in H

Features:

• Mechanically locked on shaft end
• NEMA JM pump shaft dimensions
• 1.15 service factor on sinewave, 1 service factor on IGBT power

Specs:

• Variable Torque Speed Range: 10:1
• Constant Torque Speed Range: 2:1
• Service Factor: 1.15
• Special Features: Squirrel Cage Induction Run Motors
• Application Type: Close Coupled Motors
• Insulation Class: Class F
• Shaft Size: 1-3/4 in Dia x 5-1/4 in L Extension
• Torque Rating: 59.2 ft-lb Full Load
• Phase: 3 ph
• Horsepower: 20 hp
• Number of Speeds: 1
• Rotation: Reversible
• Frame: 256JM
• Bearing Type: Deep Groove Ball
• Temperature Rating: 40 deg C
• Enclosure Type: IP43 TEFC
• Speed: 1775 rpm
• Frequency Rating: 60 Hz
• Mounting Type: Rigid Base
• Amperage Rating: 48/24.1 A
• Voltage Rating: 230/460 VAC
• Dimensions: 27.27 in W x 17.11 in D x 14.43 in H
• Material: Aluminum
• Type: 4-Pole Continuous Duty Low Voltage