Details

Description

Marathon® AC Motor, 6-Pole Severe/Continuous-Duty Low Voltage, Squirrel Cage Inverter Rated Motors Special Features, 250 hp, 460 V AC, 300 A, 60 Hz Frequency, 3 ph, 1190 rpm Speed, 1 Speed, IP56, TEFC Enclosure, 447/449T Frame, 3-3/8 in Dia x 8.73 in L Extension Shaft, Reversible Rotation, 1.15 Service Factor, Roller Drive End/Deep Groove Ball Opposite Drive End Bearing, 1103 ft-lb Full Load Torque, Rigid Base Mounting, 40 deg C, Insulation Class: Class F, Cast Iron, 51.85 in W x 39.38 in D x 27.61 in H Dimensions

Features:

MAX GUARD® Class F insulation system
Capable of constant torque speed range
Inpro/Seal® VBX® bearing isolators on drive end shaft extension TENV and on both ends of TEFC
Provisions to add stub shaft for an encoder
1.15 service factor on sinewave, 1 service factor on IGBT power

Standards/Approval:

CE Certified
CSA Certified
UL Recognized
NEMA Premium® Efficiency
IEEE-841 For Severe Motor Applications
IEEE45 USCG Marine Duty
API RP14F
General Motors® GM® 7E-TA Automotive Duty Specification
NEMA Design Code: B

Warranty:

36 months

Attributes/Specifications

Amperage Rating	300 A
Bearing Type	Roller Drive End/Deep Groove Ball Opposite Drive End
Dimensions	51.85 in W x 39.38 in D x 27.61 in H
Enclosure Type	IP56, 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 8.73 in L Extension
Special Features	Squirrel Cage Inverter Rated Motors
Speed	1190 rpm
Manufacturer	Marathon®