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MARATHON MOTORS Blue Chip Severe Duty/Cooling Tower Motors, Two Speed, Rigid Base, Three Phase


Marathon Blue Chip severe duty / cooling tower motors are ideal for mounting in the airstream for cooling tower applications. These motors have a high starting torque for a quick start. Marathon also offers general purpose motors for driving HVAC equipment.

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MARATHON MOTORS 284TTFNA7240A
MARATHON MOTORS 286TTFNA7260B
MARATHON MOTORS 324TTFS7290C
MARATHON MOTORS 365TTFS9230D
StyleModelHpFrameRpmFull Load AmpsShaft LengthDia.Output WattageNominal EfficiencyPrice
A
284TTFNA7240		20 hp, 5 hp284T1775/880 RPM8.5/24A4 13/16"15 1/16"14900 W91.7%€7,943.01
B
286TTFNA7260		25 hp, 6 1/4 hp286T1775/880 RPM11/31A4 13/16"15 1/16"18700 W91.7%€9,269.00
C
324TTFS7290		30 hp, 7 1/2 hp324T1785/888 RPM35/11.2A5 1/2"18 3/16"22400 W-€11,313.63
D
365TTFS9230		60 hp, 15 hp365T1780/885 RPM74.5/25A6 1/8"20"45000 W92.4%€26,022.91

Working Mechanism

  • These motors have a base mounting plate that mounts onto flat surfaces. They can also be bolted down onto level surfaces.
  • These three-phase motors are wired to a three phase power supply and the load / belt is connected to the motor shaft for power transmission.
  • These motors are lifted using a lifting ring welded onto their top.

Features

  • These motors feature a totally enclosed fan-cooled design for preventing overheating in confined spaces.
  • They have a cast iron frame and epoxy finish for durability and abrasion resistance.
  • These motors feature ball bearings for minimising friction during shaft rotation.
  • They have a keyed shaft design for a slip-proof operation and feature Forsheda seals on both ends for a leak-tight seal.
  • These motors are regreasable for easy maintenance and have T drains for effective drainage.

Standards and Approvals

  • CE
  • CSA
  • UL
  • NEMA

Frequently Asked Questions

Do Marathon cooling tower motors support multiple speeds?

Yes, these motors support 2-speed settings for adjusting to application requirements.

What is the maximum temperature supported by Marathon cooling tower motors?

These motors can handle temperatures up to 104 degrees F.

What are the mounting positions supported by marathon cooling tower motors?

These motors support both horizontal & vertical (shaft up) mounting positions.

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