for more information, please visit the product page. ????????? ?????????????????? cui .com 08/09/2017 1 of 6 series : cbm-120b description: dc blower features ? ball bearing design ? multiple speed options for different cooling needs ? 120 x 120 mm frame ? auto restart protection standard on all models model input voltage input current 1 input power 1 rated speed 1 air fow 2 static pressure 3 noise 4 rated (vdc) range (vdc) max (ma) max (w) typ (rpm10%) (cfm) (inch h 2 o) max (dba) CBM-A232B-121 12 6~13.8 450 5.4 2100 31.4 0.64 49.6 cbm-a232b-125 12 6~13.8 820 9.8 2500 35.9 0.89 53.8 notes: 1. at rated voltage, 25c, 0 inch h 2 0 static pressure, after 10 minutes 2. as per amca 210 or din 24163, at rated voltage, stabilized rpm, 0 inch h 2 0 static pressure 3. as per amca 210 or din 24163, at rated voltage, stabilized rpm, 0 cfm airfow. 4. measured in a semi-anechoic chamber with background noise < 15 dba at 1 m from the fan intake. 5. all specifcations are measured at 25c, 65% relativ e humidity unless otherwise specifed. date page
for more information, please visit the product page. ?????????????????? cui .com date 08/09/2017 page 2 of 6 cui inc series : cbm-120b description: dc blower input parameter conditions/description min typ max units operating input voltage 6 12 13.8 vdc starting voltage 6 vdc performance 1 parameter conditions/description min typ max units rated speed at rated voltage, 25c, after 10 minutes 2100 2500 rpm air fow at 0 inch h 2 o, see performance curves 31.4 35.9 cfm static pressure at 0 cfm, see performance curves 0.64 0.89 inch h 2 o noise at 1 m 49.6 53.8 dba note: 1. see model section on page 1 for specifc values. protections parameter conditions/description min typ max units auto restart when the fan motor is locked by an external force, the device will temporarily turn off electrical power to the motor and restart automatically when the locked rotor condition is released safety & compliance parameter conditions/description min typ max units insulation resistance of frame at 500 vdc between internal stator and positive lead wire 10 m? dielectric strength apply 500 vac for 1 minute between housing and positive lead wire safety approvals ul/cul 507, tuv (en 60950-1) emi/emc en 61000-6-1:2007, en 61000-6-3:2007+a1 life expectancy at 40c, 65% rh 70,000 hours rohs 2011/65/eu environmental parameter conditions/description min typ max units operating temperature -10 70 c storage temperature -40 70 c
for more information, please visit the product page. ?????????????????? cui .com date 08/09/2017 page 3 of 6 cui inc series : cbm-120b description: dc blower performance curves 0 20 40 0.80 0.40 24 16 8 0 0 0.57 1.14 cfm cmm air flow inch h o 2 mm h o 2 static pressure cfm cmm air flow inch h o 2 mm h o 2 static pressure 0 20 40 0.80 0.40 24 16 8 0 0 0.57 1.14 CBM-A232B-121 cbm-a232b-125
for more information, please visit the product page. ?????????????????? cui .com date 08/09/2017 page 4 of 6 cui inc series : cbm-120b description: dc blower mechanical parameter conditions/description min typ max units motor 4 pole dc brushless bearing system ball bearing direction of rotation counter-clockwise viewed from front of fan blade dimensions 120 x 120 x 32 mm material pbt (ul94v-0) weight 250 g mechanical drawing wire connections wire color function red +vin black -vin units: mm wire: ul 1007, 24 awg
for more information, please visit the product page. ?????????????????? cui .com date 08/09/2017 page 5 of 6 cui inc series : cbm-120b description: dc blower safety considerations 1. do not use or operate this fan in excess of the limitations set forth in this specifcation. cui is not responsible for the non-performance of this fan and/or any damages resulting from its use, if it is not used or operated in accordance with the specifcations. 2. cui recommends adding a protection circuit to the product or application in which this fan is installed, such as a thermo-fuse, or current fuse or thermo-protector. the failure to use such a device may result in smoke, fre, electric shock by insulation degradation in cases of motor lead short circuit, overload, or over voltage, and/or other failure. 3. cui recommends installing a protection device to the product or application in which this fan is installed if there is a possibility of reverse connection between vdc (+) and gnd (-). the failue to install such a device may result in smoke, fre, and/or destruction, although these conditions may not manifest immediately. 4. this fan mush be installed and used in compliance with all applicable safet y standards and regulations. 5. use proper care when handling and/or installing this fan. improper handling of installation of this fan ma y cause damage that could result in unsafe conditions. 6. use proper care during installation and/or wiring. failure to use proper care may cause damage to certain components of the fan including, but not limited to, the coil and lead wires, which could result in smoke and/or fre. 7. do not use power or ground pwm to control the fan speed. if the fan speed needs to be adjusted, please contact cui to customize the product design for your application. 8. for critical or extreme environments, including non-stop operation, please contact cui and we will gladly provide assistance with your product selection to ensure an appropriate cooling product for your application. 9. when building your device, please examine thouroughly any variation of emc, temperature rise, life data, quality, etc. of this product by shock/drop/vibration testing, etc. if there are any problems or accidents in connection with this product, it should be mutually discussed and examined. 10. use proper care when handling these fans. components such as fan holders or bearings ma y be damaged, if touched with fngers or other objects. additionally, static electricity (esd) may damage internal circuits of the fan. 11. do not operate these fans in proximity to hazardous materials such as organic silicon, cyanogens, formalin, phenol, or corrosive gas environments including, but not limited to, h 2 s, so 2 , no 2 , or cl 2 . 12. cui recommends that you protect these fans from exposure to outside elements such as dust, condensation, humidity, or insects. exposure of this fan to such elements may affect its performance and my cause safety hazards. cui does not warrant against damage to the product caused by outside elements. 13. the fans must be installed properly and securely. improper mounting may cause harsh resonance, vibration, and noise. 14. do not store these fans in an environment with high humidity. these fans must be stored in accordance with the specifed storage temperature. 15. cui reserves the right to use components from multiple sources at its discretion. the use of components from other sources will not affect the specifcations as described herein. 16. the life expectancy of these fans has not been evaluated for use in combination with any end application. therefore, the life expectancy that relate to these fans are only for reference.
for more information, please visit the product page. ????????? date 08/09/2017 page 6 of 6 cui inc series : cbm-120b description: dc blower cui offers a one (1) year limited warranty. complete warranty information is listed on our website. cui reserves the right to make changes to the product at any time without notice. information provided by cui is believed to be accurate and reliable. however, no responsibility is assumed by cui for its use, nor for any infringements of patents or other rights of third parties which may result from its use. cui products are not authorized or warranted for use as critical components in equipment that requires an extremely high level of reliability. a critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safet y or effectiveness. headquarters 20050 sw 112th ave. tualatin, or 97062 800.275.4899 fax 503.612.2383 cui .com techsupport@cui.com rev. description date 1.0 initial release 08/09/2017 the revision history provided is for informational purposes only and is believed to be accurate. revision history
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