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Enclosure Fans and Fan Trays

The Kooltronic line of enclosure cooling fans offers the widest selection of airflow capacities, NEMA types, and mounting configurations in the industry. Using available ambient cool air, Kooltronic fans provide an economical way to efficiently meet your cooling and air moving needs. Enclosure fans and fan trays are ideal for electrical control panel applications with minimal static pressure and equipment that can tolerate higher than ambient temperatures. When combined with a low-cost air filter, an enclosure cooling fan provides a low maintenance and effective heat removal device for electronic enclosures in clean industrial environments. Kooltronic fans are engineered for performance and built for reliability. All applicable components are UL/CSA Recognized, and our most popular fans are stocked and ready to ship.

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Open Loop enclosure cooling

Kooltronic has a broad range of models and configurations of enclosure fans, offering unsurpassed capability and flexibility. From the ultra-compact yet powerful Thin Fan Series (210 to 840 CFM capacities) to High Performance Fans capable of delivering far more air than comparably sized units. Kooltronic also offers Twin, Triple and Filter Box Packaged Fans (250 to 1310 CFM capacities) and KoolTrays with up to 9 Fans (315 to 945 CFM capacities).

Our filter fan series includes NEMA ratings for virtually every application. The Advantage Series Filter Fans, with a NEMA 12 rating, are available in a variety of sizes and cooling capacities. The Advantage Sentry Series electrical control panel fans, rated for NEMA 3R, offer the versatility and convenience of indoor or outdoor cooling, and are available in a variety of sizes, voltages and protection levels for electrical control panels. Our exclusive Guardian/GuardianX Series Filter Fans are rated for NEMA 4 or 4X, and are perfect for wash-down environments, wastewater and other challenging applications where the electrical control panels only require enclosure fans to provide the cooling.

A variety of accessories and options for enclosure fans are available, including airflow detectors (to alert users to low air volume), reverse airflow options, and replacement filters. Keeping the enclosure fan filter clean will optimize airflow, resulting in better electrical cabinet cooling. Kooltronic also designs and manufactures a variety of enclosure fans to meet unique specifications. If this is something you may be interested in, please inquire about our modification and custom-design capabilities.

For proper enclosure cooling fan selection, it is important to consider the heat that needs to be removed from the electrical cabinet and the required airflow against static pressure to achieve the desired result. Space limitations, the enclosure's NEMA requirements, and available power voltage should also be considered. However, if conditions require below ambient cooling of an enclosure, an air conditioner or a water-to-air heat exchanger should be considered, along with additional enclosure accessories that can help customize the unit.

Which Open-Loop Cooling Solution is Right For My Application?

Which Open-Loop Cooling Solution is Right For My Application?

Which Open-Loop Cooling Solution is Right For My Application?

Which Open-Loop Cooling Solution is Right For My Application?

Indoor Fans

Thin Fans
  • CFM Capacity Range: 210-840
  • Extremely Compact
  • Versatile Mounting Options
  • Pressurize or Exhaust
View Models

Indoor Fans

Advantage Series Filter Fans


  • CFM Capacity Range: 13-342
  • Rated for NEMA 12
  • Quick and Easy Mounting
  • Extremely Flat Profile
View Models

Indoor/Outdoor Fans

Guardian Series Filter Fans
  • CFM Capacity Range: 20-444
  • Rated for NEMA 4 or 4X
  • Safe for Washdown
  • IP55 Filter Protection
View Models

Indoor/Outdoor Fans

Sentry Series Filter Fans
  • CFM Capacity Range: 88-405
  • Rated for NEMA 3R
  • Various Sizes & Voltages
  • Integrated Fan Guards
View Models

Packaged Fans

Twin, Triple & Filter Box Fans
  • CFM Capacity Range: 105-1,310
  • Quiet, Vibration-Free Operation
  • Versatile Mounting & Adaptability
  • Rugged Construction
View Models

Packaged Fans

High Performance Fans
  • CFM Capacity: 385
  • Small Size for Limited Space
  • Exceptionally Quiet Operation
  • High Static Pressure Performance
View Models

Rack Mounted Fans

KoolTray Fan Tray
  • Perfect for 19 in. Rack Mounting
  • Up to 105 CFM per Fan
  • 6 ft. Power Supply Cord
  • Exceptionally Quiet Operation
View Models
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Kooltronic, Inc.
30 Pennington-Hopewell Road
Pennington, NJ 08534 USA
609-466-3400
800-321-KOOL
609-466-1114 (fax)
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