Additional Resources: Product Page date 01/20/2022 page 1 of 6 SERIES: CFM-A7BF DESCRIPTION: DC AXIAL FAN FEATURES dual ball bearing system 172 mm frame multiple speed options tachometer signal available 2 4 input input input rated airflow static noise MODEL 1 1 1 3 voltage current power speed pressure rated range max max typ typ (Vdc) (Vdc) (A) (W) (RPM10%) (CFM) (inch H O) (dBA) 2 5 CFM-A751BF-125-460 12 10.8~13.2 0.84 10.08 2,500 180.5 0.33 46.0 CFM-A751BF-135-533 12 10.8~13.2 2.07 24.84 3,500 252.7 0.65 53.3 5 CFM-A751BF-225-460 24 21.6~26.4 0.50 12.00 2,500 180.5 0.33 46.0 CFM-A751BF-235-533 24 21.6~26.4 1.01 24.24 3,500 252.7 0.65 53.3 CFM-A751BF-245-588 24 21.6~26.4 2.16 51.84 4,500 324.9 1.07 58.8 CFM-A751BF-253-623 24 21.6~26.4 3.48 83.50 5,300 382.7 1.48 62.3 Notes: 1. At rated voltage, after 3 minutes. 2. At rated voltage, room temperature, 65% humidity, 0 inch H 0 static pressure. 2 3. At rated voltage, 0 CFM airflow. 4. Measured in an anechoic chamber as per ISO3745/GB4214-84 at rated voltage, with background noise 202 dBA at 1 m from the fan intake. 5. Typical rated speed is measured as RPM300 at rated voltage. 6. All specifications are measured at 25C, 65% relativ e humidity unless otherwise specified. PART NUMBER KEY CFM-A751BF-125-460- XX - CXX Fan Signals Base Number Reserved for Custom blank = no signals Configurations 20 = tachometer signal cuidevices.comAdditional Resources: Product Page CUI Devices SERIES: CFM-A7BF DESCRIPTION: DC AXIAL FAN date 01/20/2022 page 2 of 6 INPUT parameter conditions/description min typ max units 12 Vdc input models 10.8 12 13.2 Vdc 7 operating input voltage 24 Vdc input models 21.6 24 26.4 Vdc 12 Vdc input models 10 Vdc starting voltage 24 Vdc input models 18 Vdc Note: 7. See Model section on page 1 for specific input voltage ranges. 8 PERFORMANCE parameter conditions/description min typ max units rated speed at rated voltage, 25C, after 3 minutes 2,500 5,300 RPM air flow at 0 inch H O, see performance curves 180.5 382.7 CFM 2 static pressure at 0 CFM, see performance curves 0.33 1.48 inch H O 2 noise at 1 m, rated speed 46.0 62.3 dBA Note: 8. See Model section on page 1 for specific values. 9 PROTECTIONS / FEATURES parameter conditions/description min typ max units auto restart on all models polarity protection on all models soft start on all models tachometer signal available on 20 models Notes: 9. See Application Notes for details. SAFETY & COMPLIANCE parameter conditions/description min typ max units insulation resistance at 500 Vdc between frame and positive terminal 10 M at 500 Vac, 60 Hz, 1 minute between housing and dielectric strength 5 mA positive terminal safety approvals UL/cUL 507, TUV (EN/IEC 62368-1:2020+A11) EMI/EMC EN 55032:2015, EN 55035:2017 life expectancy at 40C, 65% RH, 90% confidence level 70,000 hours RoHS yes ENVIRONMENTAL parameter conditions/description min typ max units operating temperature -10 70 C storage temperature -40 75 C operating humidity non-condensing 35 85 % storage humidity non-condensing 35 85 % cuidevices.com