Additional Resources: Product Page date 10/14/2021 page 1 of 7 SERIES: CFM-40BF DESCRIPTION: DC AXIAL FAN FEATURES dual ball bearing system 40 x 40 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-4020BF-035-114 5 4.5~5.5 0.06 0.30 3,500 4.38 0.06 11.4 5 CFM-4020BF-055-212 5 4.5~5.5 0.15 0.75 5,500 6.88 0.14 21.2 CFM-4020BF-075-306 5 4.5~5.5 0.36 1.80 7,500 9.38 0.25 30.6 CFM-4020BF-095-342 5 4.5~5.5 0.45 2.25 9,500 11.88 0.41 34.2 5 CFM-4020BF-235-114 24 21.6~26.4 0.04 0.96 3,500 4.38 0.06 11.4 5 CFM-4020CF-255-212 24 21.6~26.4 0.05 1.20 5,500 6.88 0.14 21.2 CFM-4020BF-275-306 24 21.6~26.4 0.06 1.44 7,500 9.38 0.25 30.6 CFM-4020BF-295-342 24 21.6~26.4 0.12 2.88 9,500 11.88 0.41 34.2 CFM-4020BF-2110-381 24 21.6~26.4 0.12 2.88 11,000 13.76 0.55 38.1 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 RPM600 at rated voltage. 6. All specifications are measured at 25C, 65% relativ e humidity unless otherwise specified. PART NUMBER KEY CFM-4020BF-035-114- 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-40BF DESCRIPTION: DC AXIAL FAN date 10/14/2021 page 2 of 7 INPUT parameter conditions/description min typ max units 5 Vdc input models 4.5 5 5.5 Vdc 7 operating input voltage 24 Vdc input models 21.6 24 26.4 Vdc 5 Vdc input models 3.5 Vdc starting voltage 24 Vdc input models 14 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 3,500 11,000 RPM air flow at 0 inch H O, see performance curves 4.88 13.76 CFM 2 static pressure at 0 CFM, see performance curves 0.06 0.55 inch H O 2 noise at 1 m, rated speed 11.4 38.1 dBA Note: 8. See Model section on page 1 for specific values. 9 PROTECTIONS / FEATURES parameter conditions/description min typ max units auto restart only available on 7,500, 9,500, and 11,000 RPM models polarity protection only available on 3,500, 5,500, and 11,000 RPM 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