for more information, please visit the product page. ????????? ?????????????????? cui .com 08/15/2016 1 of 6 series : cfm-120 description: dc axial fan features ? 120 x 120 mm frame ? high fan speed for greater air flow ? two ball bearing construction ? auto restart protection standard on all models part number key cfm-a2 x x - x 3 - xx - c xx reserved for custom confgurations base number input voltage 1 = 12 vdc 2 = 24 vdc 4 = 48 vdc fan protection 10 = auto restart protection 11 = auto restart protection / rotation detector 20 = auto restart protection / tachometer signal 22 = auto restart protection / tachometer signal / pwm control signal model input voltage input current input power rated speed airfow 1 static pressure 2 noise rated (vdc) range (vdc) typ (a) max (a) max (w) typ (rpm) (cfm) (mm h 2 o) max (dba) cfm-a225-13 12 6~13.8 0.59 0.79 9.48 4,100 126.89 12.52 53.5 cfm-a225-23 24 16~27.6 0.31 0.39 9.36 4,100 126.89 12.52 53.5 CFM-A225-43 48 30~55.2 0.17 0.23 11.04 4,100 126.89 12.52 53.5 cfm-a238-13 12 6~13.8 1.40 1.75 21 4,600 200.9 19.80 61.5 cfm-a238-23 24 16~27.6 0.77 0.88 21.12 4,600 200.9 19.80 61.5 cfm-a238-43 48 30~55.2 0.36 0.48 23.04 4,600 200.9 19.80 61.5 notes: 1. at 0 mm h 2 0 static pressure. 2. at 0 cfm airfow. depth 25 = 25 mm 38 = 38 mm date page
for more information, please visit the product page. ?????????????????? cui .com date 08/15/2016 page 2 of 6 cui inc series : cfm-120 description: dc axial fan input parameter conditions/description min typ max units operating input voltage 12 vdc input models 24 vdc input models 48 vdc input models 6 16 30 12 24 48 13.8 27.6 55.2 vdc vdc vdc current cfm-a225-13 cfm-a225-23 CFM-A225-43 cfm-a238-13 cfm-a238-23 cfm-a238-43 0.59 0.31 0.17 1.40 0.77 0.36 0.79 0.39 0.23 1.75 0.88 0.48 a a a a a a power cfm-a225-13 cfm-a225-23 CFM-A225-43 cfm-a238-13 cfm-a238-23 cfm-a238-43 7.08 7.44 8.16 16.80 18.48 17.28 9.48 9.36 11.04 21 21.12 23.04 w w w w w w starting voltage at 25c 12 vdc input models 24 vdc input models 48 vdc input models 6 12 24 vdc vdc vdc performance parameter conditions/description min typ max units rated speed at 25c, after 10 minutes cfm-a225 models cfm-a238 models 3,690 4,140 4,100 4,600 4,510 5,060 rpm rpm air fow at 0 mm h 2 o, see performance curves cfm-a225 models cfm-a238 models 126.89 200.9 cfm cfm static pressure at 0 cfm, see performance curves cfm-a225 models cfm-a238 models 12.52 19.80 mm h 2 o mm h 2 o noise at 1 m cfm-a225 models cfm-a238 models 51.5 59.5 53.5 61.5 dba dba protections / signals 1 parameter conditions/description min typ max units auto restart protection available on all models rotation detector available on 11 models tachometer signal available on 20 and 22 models pwm control signal available on 22 models notes: 1. see application notes for details. safety & compliance parameter conditions/description min typ max units insulation resistance of frame at 500 vdc between frame and positive terminal 10 m? dielectric strength at 500 vac, 60 hz, 1 minute between frame and positive terminal 5 ma safety approvals ul/cul 507, tuv (en 60950-1) emi/emc en 55022:2010+ac:2011 class b, en 61000-3- 2:2014, en 61000-3-3:2013, en 55024:2010 life expectancy at 45c, 15~65% rh 70,000 hours rohs 2011/65/eu
for more information, please visit the product page. ?????????????????? cui .com date 08/15/2016 page 3 of 6 cui inc series : cfm-120 description: dc axial fan 0.50 0.40 0.30 0.20 0.10 (inch h2o) 0.00 0.00 0.74 1.49 2.23 2.98 3.72 (cmm ) 0.00 2.00 4.00 6.00 8.00 10.0 0 12.0 0 14.0 0 0.00 50.0 01 00.00 150.00 (mm h2o) (cfm ) 0.98 0.00 0.00 0. . 10 . . . . 0. . 100 . . . . cfm-a225 cfm-a238 environmental parameter conditions/description min typ max units operating temperature -10 70 c storage temperature -40 70 c operating humidity non-condensing 5 90 % storage humidity non-condensing 5 95 % performance curves
for more information, please visit the product page. ?????????????????? cui .com date 08/15/2016 page 4 of 6 cui inc series : cfm-120 description: dc axial fan mbcf m mbcf m 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 cfm-a225 models 120 x 120 x 25.4 cfm-a238 models 120 x 120 x 38 mm mm material pbt (ul94v-0) weight cfm-a225-13 cfm-a225-23 CFM-A225-43 cfm-a238-13 cfm-a238-23 cfm-a238-43 190.0 189.8 190.6 297.0 283.7 283.2 g g g g g g mechanical drawing units: mm [inch] cfm-a225 cfm-a238 wire connections wire color function red +vin black -vin yellow fg signal white rd signal blue pwm wire connections wire color function red +vin black -vin yellow fg signal white rd signal blue pwm wire: ul 1007, 24 awg wire: ul 1007, 24 awg
for more information, please visit the product page. ?????????????????? cui .com date 08/15/2016 page 5 of 6 cui inc series : cfm-120 description: dc axial fan figure 6 duty cycle auto restart protection/current limit protection when the fan motor is locked, the device will cut off the drive current within two to six seconds and restart automatically after a few seconds. if the lock situation is continued, the device will work on a repeated cycle of cut-off and restart until the lock is released. (see figure 1 below). application notes figure 1 current limit protection pulse sensor/tachometer signal/fg pulse sensor is for detecting the rotational speed of the fan motor. at locked rotor condition, the signal stops cycling and the output is fxed at voh or vol (see figures 4~5 below). vs=4~5 v figure 5 fg signal output circuit: open collector ic=10m a max figure 4 output waveform lock sensor/rotation detector lock sensor is used to detect if the fan motor is operating or stopped. alarm high: the output will be logical low when fan is operating and be logical high when fan motor is locked. (see figures 2~3 below). figure 2 alarm high output waveform figure 3 rd signal output circuit: open collector ic=5ma max pmw control signal a speed control lead can be provided that will accept a pwm signal from the customer circuit to vary the speed of the fan. the change in speed is linear by changing the duty-cycle of the pwm. open collector type and pull-up voltage is changed by maximum operating voltage and sink current by consuming current. (see figure 6 below).
for more information, please visit the product page. ????????? date 08/15/2016 page 6 of 6 cui inc series : cfm-120 description: dc axial fan 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 safety 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 08/15/2016 the revision history provided is for informational purposes only and is believed to be accurate. revision history
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