Marathon Y856A

Marathon · Definite Purpose Aggregate Duty Blue Chip Series
250 HP 1788 447T|449T TEFC 460V Crusher Duty
Catalog Number: Y856A
Model Number: 449TTFS36633
HP
250
RPM
1800
Voltage
460V
Frame
447T, 449T
Phase
3
Enclosure
TEFC
Material
Cast Iron
Mounting
Rigid

Product-line overview

Match your tough applications with Marathon’s crusher duty motors, designed specifically for the aggregate industry. These severe duty motors are TEFC enclosed with a cast iron construction to protect against the harshest environments. Save on your energy costs with their NEMA Premium® design.

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Description

Specifically designed for the aggregate industry crusher applications such as
cone, jaw, and roller type impactors, pulverizers, etc.

Feature

  • Meets or exceeds NEMA Premium efficiencies
  • Blue Chip Series® quality, 100% cast iron construction for rigidity and reduced vibration
  • 4140 high strength shaft material
  • NEMA® design C, extra high starting and breakdown torque design
  • Roller bearing on drive end for belted loads
  • IP55 rating, enclosure protection against dust and water jets
  • Suitable for use on a VFD. 10:1 variable torque and 10:1 constant torque
  • 1.15 service factor on sinewave, 1.0 service factor on IGBT power
  • Suitable for across the line, wye-delta, part winding, or inverter start
  • 80°C rise at rated load
  • Class F insulation
  • Axial surface seal (50 to 200HP) and Inpro® smart ring plus on the 250HP model, rotating shaft seals on each end
  • External epoxy paint
  • Brass drain and breather
  • UL recognized, CSA certified, and CE mark

eMotors Direct’s stock of crusher duty electric motors are used in severe-duty, high starting torque applications. They’re built tough so that they can take on your toughest jobs. Designed for the aggregate and mining industries, these motors are put to use on belt-driven rock crushers and pellet mills, to name a few. Our crusher duty motors are built to withstand the harshest of environmental conditions and heavy, continuous action, with regular maintenance.

Our crusher duty motor category covers some of our hardest working motors. Due to the severity of the work, these crusher duty electric motors need to protect their internal components. They all come in a totally enclosed fan cooled (TEFC) enclosure, protecting the internals from contaminants while off-putting the heat created by the motor’s often continuous operation. All of these electric motors run on three-phase power and are manufactured with cast iron. Shop from top brands like WorldWide, TECO-Westinghouse, Marathon, and Baldor crusher duty motors.

Shop crusher duty motors online through our Canadian website today. With over 150 SKUs and convenient filtering options, you can easily find the motor you’re searching for.

Need a hand finding the right motor for your application or legacy replacement?  Contact our motors experts. They have extensive knowledge, backed by over 45 years of experience, to help you with your electric motor project.

Electrical Data
Rated Motor Output Power
250 HP
186 kW
Rated Motor Speed
1788 RPM
Rated Motor Voltage
460V
Rated Motor Current
282 AMP
Phase
3
Poles
4
Locked Rotor Current
-
Fl Current @ 208V
-
Service Factor
1.15
KVA Code
G
Nominal Efficiency
96.5
Nominal Power Factor
86
Leads (Qty, Size)
-
Frequency
60 Hz
Connection
-
Start Capacitor
-
Run Capacitor
-
MFD
-
VFD (S.F. 1.0)
Ratio
Hz
Variable Torque
-
-
Constant Torque
-
-
General Data
Frame
447T, 449T
Enclosure
TEFC
Mounting
Rigid
Number of Speeds
-
Approximate Weight
2924lb
Double Drilled
No
Frame Material
Cast Iron
C-Dimension
51.84"
NEMA Design
C
Degree of Protection (IP)
IP55
Insulation Class
F
Rotation
Reversible
Duty
Continuous
Conduit Box Location
-
Removable Feet
No
Orientation
Horizontal
Ambient Temp
40°C
Full Load Temperature Rise
Full Load Temp Rise
-
Temp Code
-
Mechanical Data
DE Bearing
6319
NDE Bearing
6319
Shaft Diameter
3.375"
Shaft Length
8.75"
Grease Type
-
Greaseable
No
Hazardous Locations
CSA Certified
-
Temp Code (Sine Wave Power)
-
Temp Code (VFD Power)
-
Additional Information
Agency Approvals
CSA, UL & CE
Country of Origin
-
Warranty
3-Year

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About Marathon

With a strong presence in North America, Marathon Motors Canada ships directly from Toronto, Montreal, and Edmonton. Marathon is known for its wide variety of products, but offers specialized products for the HVAC, manufacturing, and Oil & Gas industries. Product offers including IEC and NEMA standard motors, allowing for brand consistency within manufacturing facilities.

The company implements rigorous quality control measures to ensure the reliability and durability of its electric motors. Backed by parent company Regal Rexnord, Marathon Motors offers a deep bench of expert technical support.

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