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Thermal Management for Enclosures
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Quadruplex Centrifugal Blowers
Quadruplex Centrifugal Blower


Kooltronic Quadruplex Centrifugal Blowers move more air with less noise and greater efficiency than comparably sized double centrifugal blowers. The optimum wheel-width-to-diameter ratio and the specially designed housings, which minimize inlet losses, also contribute to an exceptionally even distribution of airflow for maximum cooling.

A unique motor mount design isolates the drive motor and rotating components from the blower structure for smooth, quiet operation with minimum vibration. Quadruplex Blowers are suitable wherever wide-band air movement is required and are especially useful for applications such as cooling printed circuit cards and other components in densely packed electronic cabinets.

KOOLTRONIC also designs and manufactures a variety of blowers to meet unique specifications. We invite your inquiries about our modification and custom-design capabilities.


Standard Features Accessories and Options
  • Capacities: 320 to 920 CFM
  • Extremely quiet, efficient operation
  • Full performance in any mounting position
  • Rugged construction with baked powder finish
  • UL/CSA ball-bearing motors
  • 12-inch [304.8] (minimum) power and ground leads
quadruplex centrifugal blower kbb430
320 CFM
6"H x 15"W x 5"D
quadruplex centrifugal blower kbb435
550 CFM
7"H x 16"W x 7"D
quadruplex centrifugal blower kbb443
920 CFM
8"H x 17"W x 7"D
quadruplex centrifugal blower kbb451
800 CFM
9"H x 15"W x 8"D
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