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Thermal Management for Enclosures
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Double Centrifugal Blowers
Double Centrifugal Blower


Kooltronic Double Centrifugal Blowers are designed to provide greater airflow than the related single blower series, in the same types of low to moderate static pressure applications. Similarly, they are easily installed and operate with equal effectiveness in any mounting orientation.

Eleven models comprise the series, offering a choice of sizes and capacities to satisfy a wide variety of cooling requirements.

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: 155 to 1200 CFM
  • Full performance in any mounting position
  • Rugged construction with baked powder finish
  • UL/CSA ball-bearing motors
  • 12-inch [304.8mm] (minimum) power and ground leads
double centrifugal blower kbb25-25
155 CFM
5"H x 10"W x 5"D
double centrifugal blower kbb30-30
185 CFM
6"H x 10"W x 5"D
double centrifugal blower kbb36-36
390 CFM
7"H x 12"W x 6"D
double centrifugal blower kbb37-37
465 CFM
7"H x 14"W x 6"D
double centrifugal blower kbb43-43
450 CFM
8"H x 12"W x 7"D
double centrifugal blower kbb46-46
300 CFM
8"H x 7"W x 11"D

double centrifugal blower kbb50-50
500 CFM
9"H x 14"W x 8"D
double centrifugal blower kbb57-57
560 CFM
10"H x 14"W x 8"D
double centrifugal blower kbb60-60
665 CFM
11"H x 12"W x 9"D
double centrifugal blower kbb64-64
890 CFM
11"H x 14"W x 11"D
double centrifugal blower kbb80-80
1200 CFM
14"H x 14"W x 12"D

Dimensions, inches [mm], are for reference only and subject to change.

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