Marathon L471A 449TTFS16102 is a 250 HP, 900 RPM three-phase electric motor with a 447/449TZ NEMA frame and Totally Enclosed Fan Cooled enclosure. It operates on 460V at 60 Hz. This motor is designed for industrial applications requiring high torque at low speed.

Marathon® AC Motor, 8-Pole Continuous/Inverter Duty Low Voltage, Application Type: General Purpose AC Motors, Special Features: Squirrel Cage Induction Run Motors, 250 hp, 460 VAC, 324 A, 60 Hz, 3 ph, 890 rpm, 1 Speed, IP43 TEFC Enclosure, 447/449TZ Frame, 4 in Dia x 8-3/4 in L Extension Shaft, Reversible, Service Factor: 1, Roller Drive End/Deep Groove Ball Opposite Drive End Bearing, 1478 ft-lb Full Load Torque, Rigid Base Mount, 40 deg C, Insulation Class: Class H, Cast Iron, Constant Torque Speed Range: 10:1, Variable Torque Speed Range: 10:1, 56.79 in W x 39.38 in D x 27.61 in H

Features:

• Motor will accept a C-face kit
• 12 leads for wye-delta, part winding on low voltage or across the line starting
• Roller bearing on shaft end for belted loads
• 1.15 service factor on sinewave, 1 service factor on IGBT power

Specs:

• Variable Torque Speed Range: 10:1
• Constant Torque Speed Range: 10:1
• Service Factor: 1
• Special Features: Squirrel Cage Induction Run Motors
• Application Type: General Purpose AC Motors
• Insulation Class: Class H
• Shaft Size: 4 in Dia x 8-3/4 in L Extension
• Torque Rating: 1478 ft-lb Full Load
• Phase: 3 ph
• Horsepower: 250 hp
• Number of Speeds: 1
• Rotation: Reversible
• Frame: 447/449TZ
• Bearing Type: Roller Drive End/Deep Groove Ball Opposite Drive End
• Temperature Rating: 40 deg C
• Enclosure Type: IP43 TEFC
• Speed: 890 rpm
• Frequency Rating: 60 Hz
• Mounting Type: Rigid Base
• Amperage Rating: 324 A
• Voltage Rating: 460 VAC
• Dimensions: 56.79 in W x 39.38 in D x 27.61 in H
• Material: Cast Iron
• Type: 8-Pole Continuous/Inverter Duty Low Voltage