For more information, please visit the
product page.
date
page
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
rated
(Vdc)
input
voltage
range
(Vdc)
input
current
1
max
(mA)
input
power
1
max
(W)
rated
speed
1
typ
(RPM±10%)
air
flow
2
(CFM)
static
pressure
3
(inch H
2
O)
noise
4
max
(dBA)
CBM-A232B-121
CBM-A232B-125
Notes:
1.
2.
3.
4.
5.
12
12
6~13.8
6~13.8
450
820
5.4
9.8
2100
2500
31.4
35.9
0.64
0.89
49.6
53.8
At rated voltage, 25°C, 0 inch H
2
0 static pressure, after 10 minutes
As per AMCA 210 or DIN 24163, at rated voltage, stabilized RPM, 0 inch H
2
0 static pressure
As per AMCA 210 or DIN 24163, at rated voltage, stabilized RPM, 0 CFM airflow.
Measured in a semi-anechoic chamber with background noise < 15 dBA at 1 m from the fan intake.
All specifications are measured at 25°C, 65% relative humidity unless otherwise specified.
cui.com
For more information, please visit the
product page.
CUI Inc
│
SERIES:
CBM-120B
│
DESCRIPTION:
DC BLOWER
date
08/09/2017
│
page
2 of 6
INPUT
parameter
operating input voltage
starting voltage
conditions/description
min
6
typ
12
6
max
13.8
units
Vdc
Vdc
PERFORMANCE
1
parameter
rated speed
air flow
static pressure
noise
Note:
conditions/description
at rated voltage, 25°C, after 10 minutes
at 0 inch H
2
O, see performance curves
at 0 CFM, see performance curves
at 1 m
min
2100
31.4
0.64
49.6
typ
max
2500
35.9
0.89
53.8
units
RPM
CFM
inch H
2
O
dBA
1. See Model section on page 1 for specific values.
PROTECTIONS
parameter
auto restart
conditions/description
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
min
typ
max
units
SAFETY & COMPLIANCE
parameter
insulation resistance of frame
dielectric strength
safety approvals
EMI/EMC
life expectancy
RoHS
conditions/description
at 500 Vdc between internal stator and positive
lead wire
apply 500 Vac for 1 minute between housing and
positive lead wire
UL/cUL 507, TUV (EN 60950-1)
EN 61000-6-1:2007, EN 61000-6-3:2007+A1
at 40°C, 65% RH
2011/65/EU
70,000
hours
min
10
typ
max
units
MΩ
ENVIRONMENTAL
parameter
operating temperature
storage temperature
conditions/description
min
-10
-40
typ
max
70
70
units
°C
°C
cui.com
For more information, please visit the
product page.
CUI Inc
│
SERIES:
CBM-120B
│
DESCRIPTION:
DC BLOWER
date
08/09/2017
│
page
5 of 6
SAFETY CONSIDERATIONS
1.
Do not use or operate this fan in excess of the limitations set forth in this specification. 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 specifications.
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, fire, electric
shock by insulation degradation in cases of motor lead short circuit, overload, or over voltage, and/or other failure.
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,
fire, and/or destruction, although these conditions may not manifest immediately.
This fan mush be installed and used in compliance with all applicable safety standards and regulations.
Use proper care when handling and/or installing this fan. Improper handling of installation of this fan may cause
damage that could result in unsafe conditions.
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 fire.
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.
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.
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.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Use proper care when handling these fans. Components such as fan holders or bearings may be damaged, if touched
with fingers 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
specified 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 specifications 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.
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