Marathon GT3424A 20 HP, 3600 RPM three-phase JP pump motor with a 256JP 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 JP pump applications requiring reliable continuous-duty performance.

Marathon® AC Motor, 2-Pole Continuous/Inverter-Duty Low Voltage, Close Coupled Motors Application, Squirrel Cage Inverter Rated Motors Special Features, 20 hp, 230/460 VAC, 47.5/23.7 A, 60 Hz Frequency, 3 ph ph, 3540 rpm Speed, 1 Speed, IP55 TEFC Enclosure, 256JP Frame, 1-3/8 in Dia x 8.37 in L Extension Shaft, Reversible Rotation, 1.15 Service Factor, Deep Groove Ball Bearing, 29.7 ft-lb Full Load Torque, Rigid Base Mounting, 40 deg C, Insulation Class: Class F, Cast Iron, 10:1 Constant Torque Speed, 10:1 Variable Torque Speed, 30.76 in W x 17.38 in D x 15.14 in H Dimensions

Features:

• Standard assembly F1, reversible to F2 assembly

Specs:

• Variable Torque Speed Range: 10:1
• Constant Torque Speed Range: 10:1
• Service Factor: 1.15
• Special Features: Squirrel Cage Inverter Rated Motors
• Application Type: Close Coupled Motors
• Insulation Class: Class F
• Shaft Size: 1-3/8 in Dia x 8.37 in L Extension
• Torque Rating: 29.7 ft-lb Full Load
• Phase: 3 ph
• Horsepower: 20 hp
• Number of Speeds: 1
• Rotation: Reversible
• Frame: 256JP
• Bearing Type: Deep Groove Ball
• Temperature Rating: 40 deg C
• Enclosure Type: IP55 TEFC
• Speed: 3540 rpm
• Frequency Rating: 60 Hz
• Mounting Type: Rigid Base
• Amperage Rating: 47.5/23.7 A
• Voltage Rating: 230/460 VAC
• Dimensions: 30.76 in W x 17.38 in D x 15.14 in H
• Material: Cast Iron
• Type: 2-Pole Continuous/Inverter-Duty Low Voltage