Marathon® AC Motor, 300 hp, 460 V AC, Fire Pump Application

Description

Marathon® AC Motor, 4-Pole Continuous-Duty, Fire Pump Motors Application, 300 hp, 460 V AC, 335 A, 60 Hz Frequency, 3 ph, 1788 rpm Speed, 1 Speed, TEFC Enclosure, 447/449T Frame, 3.38 in Dia x 8.75 in L Shaft, Reversible Rotation, 1.15 Service Factor, Ball Bearing, 1105 ft-lb Torque, Rigid Base Mounting, 40 deg C, Insulation Class: Class F, Cast Iron, 51.86 in L x 39.38 in W x 27.61 in H Dimensions

Features:

• Red paint exterior
• NEMA design B, code G or less
• Motors accept c-face kits
• Horizontal motor orientation
• Squirrel cage induction run
• Dual voltage motors have 12 leads, suitable for wye-delta or across the line start on either voltage, or part winding start on low voltage
• 230/460 and 460 V models rated for 50 Hz at next lower HP
• For special designs, contact district sales office near you
• Meets T3B temperature code with a maximum surface temperature of 329 deg F
• Permanently lubricated, sealed bearings extend the lifetime of the motor
• 140 frame motor and below include explosion proof conduit box, shipped loose

Standards/Approval:

• CE Certified
• CSA LR2025

Amperage Rating	335 A
Application Type	Fire Pump Motors
Bearing Type	Ball
Dimensions	51.86 in L x 39.38 in W x 27.61 in H
Enclosure Type	TEFC
Frame	447/449T
Frequency Rating	60 Hz
Horsepower	300 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	3.38 in Dia x 8.75 in L
Speed	1788 rpm
Manufacturer	Marathon®