250, 1800, TEBC, 449T, 3/60/460 - Leeson Electric

Description

Marathon, 449THFCD8046, Encoder Motor, Squirrel Cage Inverter Duty, Inverter Duty Encoder AC Motor, Variable Speed Motors Application, 92 % Power Factor, 95.8 % Efficiency, Squirrel Cage Motor Special Features, 250 hp, 460 V, 265.0 A, 60 Hz Frequency, 3 ph, 1785 rpm Speed, 1 Speed, TEBC Enclosure, 449T Frame, 3.375 in Dia Shaft, Reversible Rotation, 1 Service Factor, Ball Bearing, Rigid Base Mounting, 40 deg C, Insulation Class: Class H, Cast Iron

Features:

• 2000:1 Constant torque operation from 0 to base speed on vector drive
• MAX GUARD Class H insulation system with CR200 corona resistant magnet wire
• Normally closed thermostats (one per phase, Class F), Modifications and Kits are available
• Double-shielded ball bearings
• Class F Insulation 40C Max Ambient, 1.0SF on Inveter Power and 1.15SF on Sine Wave Power
• Standard F1, reversible to F2 assembly
• C-face addition may result in non-NEMA BA dim
• For new BA dim consult chart found in modification section
• DE Roller Bearing For Belted Loads
• No lead lengths restrictions on 460V systems or less (as noted)
• BCP Bearing Current Protection with SGR Shaft Grounding Ring Inside Motor
• Blower Cooled - Axial

Standards/Approval:

• UL Recognized
• CSA Certified
• CE Mark
• NEMA MG1 Part 31
• IP55

Amperage Rating	265.0 A
Application Type	Inverter Duty Encoder AC Motor, Variable Speed Motors
Bearing Type	Ball
Enclosure Type	TEBC
Frame	449T
Frequency Rating	60 Hz
Horsepower	250 hp
Insulation Class	Class H
Material	Cast Iron
Mounting Type	Rigid Base
Number of Speeds	1
Phase	3
Rotation	Reversible
Service Factor	1
Shaft Size	3.375 in Dia
Special Features	92 % Power Factor, 95.8 % Efficiency, Squirrel Cage Motor
Speed	1785 rpm
Manufacturer	LEESON ELECTRIC CORPORATION