Details

Description

Marathon® AC Motor, 4-Pole Severe/Continuous-Duty Low Voltage, Squirrel Cage Induction Run Motors Special Features, 250 hp, 460 V AC, 285 A, 60 Hz Frequency, 3 ph, 1785 rpm Speed, 1 Speed, IP55, TEFC Enclosure, 447/449T Frame, 3-3/8 in Dia x 8.81 in L Extension Shaft, Reversible Rotation, 1.15 Service Factor, Deep Groove Ball Bearing, 736 ft-lb Full Load Torque, Rigid Base Mounting, 40 deg C, Insulation Class: Class F, Cast Iron, 51.84 in W x 39.42 in D x 27.61 in H Dimensions

Features:

Internal and external epoxy paint
Extended grease tubes, regreasable in service
T-drains provided for effective drainage (installed in both end shields)
Shaft Slinger
Forsheda seals on both ends
Actual test and vibration data supplied with each motor
Rated 60/50 Hz, 190/380 or 380 V at next lower horsepower
Inverter Duty 20:1 Variable Torque and 2:1 Constant Torque
Standard F1, reversible to F2 assembly
Blue Chip quality, 100 Percent cast iron construction for rigidity and reduced vibration

Standards/Approval:

CE Certified
CSA Certified
UL Recognized
NEMA Design Code: N

Warranty:

24 months

Attributes/Specifications

Amperage Rating	285 A
Bearing Type	Deep Groove Ball
Dimensions	51.84 in W x 39.42 in D x 27.61 in H
Enclosure Type	IP55, TEFC
Frame	447/449T
Frequency Rating	60 Hz
Horsepower	250 hp
Insulation Class	Class F
Material	Cast Iron
Mounting Type	Rigid Base
Number of Speeds	1
Phase	3
Rotation	Reversible
Service Factor	1.15
Shaft Size	3-3/8 in Dia x 8.81 in L Extension
Special Features	Squirrel Cage Induction Run Motors
Speed	1785 rpm
Manufacturer	Marathon®