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MARATHON MOTORS

250 HP General Purpose Motor,3-Phase,890 Nameplate RPM,Voltage 460,Frame 447/9TZ

  • Item # 44Z684
  • My Part #
  • Mfr. Model # 449TTFS18105
  • Catalog Page # N/A
  • UNSPSC # 26101602
Motor,250 HP,890 RPM,460V close
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Product Details

For use in hard-to-start applications, this general purpose motor helps to get equipment going. It features a totally enclosed, fan-cooled motor enclosure design, which helps resist contamination by preventing air from moving freely between the inside and outside of the frame. It employs a fan to blow outside over the motor to stay cool, rather than allowing outside air to freely circulate through the interior of the motor.

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Technical Specs

  • Item General Purpose Motor
  • Motor Application General Application
  • Motor Design 3-Phase
  • Motor Enclosure Design Totally Enclosed Fan-Cooled
  • HP 250
  • Nameplate RPM 890
  • Frame 447/9TZ
  • Voltage 460
  • Hz 60/50
  • Phase 3
  • Full Load Amps 330.0
  • No. of Speeds 1
  • Motor Mounting Type Rigid Base
  • Motor Mounting Position Horizontal
  • Motor Thermal Protection None
  • Ins. Class H
  • Motor Service Factor 1.00
  • Motor Bearings Ball
  • Motor Frame Material Cast Iron
  • Max. Ambient Temp. 40 Degrees C
  • Motor Shaft Rotation CW/CCW
  • Shaft Dia. 4"
  • Shaft Length 8-3/4"
  • Length Less Shaft 47-15/16"
  • Overall Length 56-11/16"
  • Motor Shaft Design Keyed
  • RPM Range 0-1000
  • Standards UL (E49747), CSA (LR2025)
  • Duty Continuous
  • Motor Efficiency Group Energy Efficient
  • Nominal Efficiency 94.5%
  • Inverter Rated Yes
  • Manufacturers Warranty Length 1 yr.
  • RPM Group Under 1000
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