CBM-979433B-235-540-22

Additional Resources: Product Page | 3D Model date 08/12/2022 page 1 of 6 SERIES: CBM-97B-2 | DESCRIPTION: DC BLOWER FEATURES • dual ball bearing • 97 x 94 mm frame • multiple speed options • PWM/tachometer wires available • auto restart MODEL input voltage input current1 input power1 rated speed1 max (A) max (W) typ (RPM±10%) airflow2 static pressure3 noise4 (CFM) (inch H2O) typ (dBA) rated (Vdc) range (Vdc) CBM-979433B-125-467 12 10.8~13.2 0.39 4.68 2,500 17.06 0.46 46.8 CBM-979433B-130-507 12 10.8~13.2 0.54 6.48 3,000 20.48 0.66 50.7 CBM-979433B-135-540 12 10.8~13.2 0.86 10.32 3,500 23.89 0.90 54.1 CBM-979433B-225-467 24 21.6~26.4 0.20 4.80 2,500 17.06 0.46 46.8 CBM-979433B-230-507 24 21.6~26.4 0.35 8.40 3,000 20.48 0.66 50.7 CBM-979433B-235-540 24 21.6~26.4 0.51 12.24 3,500 23.89 0.90 54.1 Notes: 1. At rated voltage, after 3 minutes. 2. At rated voltage, room temperature, 65% humidity, 0 inch H20 static pressure. 3. At rated voltage, 0 CFM airflow. 4. Measured in an anechoic chamber as per ISO3745/GB4214-84 at rated voltage, with background noise 20±2 dBA at 1 m from the fan intake. 5. All specifications are measured at 25°C, 65% relative humidity unless otherwise specified. PART NUMBER KEY CBM-979433B-125-467 - XX - CXX Base Number Fan Signals “blank” = no signals 20 = tachometer signal 22 = tachometer signal / PWM control signal cuidevices.com Reserved for Custom Configurations Additional Resources: Product Page | 3D Model CUI DEVICES | SERIES: CBM-97B-2 | DESCRIPTION: DC BLOWER date 08/12/2022 | page 2 of 6 INPUT parameter conditions/description min typ max units operating input voltage6 12 Vdc input models 24 Vdc input models 10.8 21.6 12 24 13.2 26.4 Vdc Vdc starting voltage 12 Vdc input models 24 Vdc input models Note: 7.0 14.0 Vdc Vdc 6. See Model section on page 1 for specific input voltage ranges. PERFORMANCE7 parameter conditions/description rated speed at rated voltage, 25°C, after 3 minutes air flow at 0 inch H2O, see performance curves static pressure noise Note: min typ max units 2,500 3,500 RPM 17.06 23.89 CFM at 0 CFM, see performance curves 0.46 0.90 inch H2O at 1 m, rated speed 46.8 54.1 dBA 7. See Model section on page 1 for specific values. PROTECTIONS / FEATURES8 parameter conditions/description auto restart on all models polarity protection on all models soft start on all models tachometer signal available on “20” and “22” models PWM control signal available on “22” models Notes: min typ max units min typ max units 8. See Application Notes for details. SAFETY & COMPLIANCE parameter conditions/description insulation resistance at 500 Vdc between frame and positive terminal dielectric strength at 500 Vac, 60 Hz, 1 minute between housing and 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 40°C, 65% RH, 90% confidence level RoHS yes 10 MΩ 5 70,000 mA hours 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 Additional Resources: Product Page | 3D Model CUI DEVICES | SERIES: CBM-97B-2 | DESCRIPTION: DC BLOWER date 08/12/2022 | page 3 of 6 CBM-979433B-125-467 CBM-979433B-130-507 Static Pressure (mm H O) 2 Static Pressure (mm H O) 2 PERFORMANCE CURVES Air Flow (CFM) Air Flow (CFM) Static Pressure (mm H O) 2 CBM-979433B-225-467 Static Pressure (mm H O) 2 CBM-979433B-135-540 Air Flow (CFM) CBM-979433B-230-507 CBM-979433B-235-540 Static Pressure (mm H O) 2 Static Pressure (mm H O) 2 Air Flow (CFM) Air Flow (CFM) Air Flow (CFM) cuidevices.com Additional Resources: Product Page | 3D Model CUI DEVICES | SERIES: CBM-97B-2 | DESCRIPTION: DC BLOWER date 08/12/2022 | page 4 of 6 MECHANICAL parameter conditions/description motor 4 pole DC brushless min bearing system dual ball bearing direction of rotation counter-clockwise viewed from front of fan blade dimensions 97.68 x 94.18 x 32.7 material PBT (UL94V-0) typ max units mm weight 175.8 g MECHANICAL DRAWING units: mm MOUNTING SCREW (Pan Head) 2 wire versions (+Vin & -Vin): UL 1007, 24 AWG 3 wire versions (+Vin, -Vin, & tach): UL 1007, 26 AWG 4 wire versions (+Vin, -Vin, tach, & PWM): UL 1007, 26 AWG WIRE CONNECTIONS Wire Color Function Red +Vin Black -Vin Yellow9 Tach Signal Blue9 PWM Notes: 9. Wires only present on versions with output signals. cuidevices.com Screw Type Size Standard Torque Machine Screw Self-tapping Screw M4 JIS B1111-1974 7.5 kgf-cm M5 JIS B1122 Type 2 7.5 kgf-cm Additional Resources: Product Page | 3D Model CUI DEVICES | SERIES: CBM-97B-2 | DESCRIPTION: DC BLOWER date 08/12/2022 | page 5 of 6 APPLICATION NOTES Auto Restart Protection 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. Polarity Protection Able to withstand 10 minutes of reverse polarity connection between the positive and negative wires without causing damage. Tachometer Signal (Yellow Wire) The tachometer signal is for detecting the rotational speed of the fan motor. The output will be a square wave when fan is operating and VFG or VCE depending on the locked rotor position when fan motor is locked (See Figures 1~2 below). Figure 1: Tachometer Output Circuit Output Type: Open Collector Vs: (VFG) 5 V fan: 3.3~5 V All others: 3.3~15 V Ic≤5 mA R≥Vs/Ic VCE(sat)≤0.5 V Figure 2: Tachometer Output Waveform 4 Pole Motor N=RPM T=60/N (sec) FG=1/T*2 (Hz) N=FG*30 PWM Signal (Blue Wire) This wire is for speed control of the fan motor using a PWM input signal from the customer circuit (See Figure 3 below). Figure 3: PWM Input Signal PWM Duty Cycle (%) = T1/T x 100% PWM Frequency Range: 20~30 kHz PWM VIH = 2.8~5.5 V PWM VIL = 0~0.6 V Soft Start When the fan power is on, the current will increase slowly (~15 seconds) until the fan reaches the rated speed. cuidevices.com Additional Resources: Product Page | 3D Model CUI DEVICES | SERIES: CBM-97B-2 | DESCRIPTION: DC BLOWER date 08/12/2022 | page 6 of 6 REVISION HISTORY rev. description date 1.0 initial release 05/12/2021 1.01 added wire details for 3 wire versions 02/24/2022 1.02 added PWM signal versions 05/19/2022 logo, datasheet style update 08/12/2022 1.03 The revision history provided is for informational purposes only and is believed to be accurate. CUI Devices offers a one (1) year limited warranty. Complete warranty information is listed on our website. CUI Devices reserves the right to make changes to the product at any time without notice. Information provided by CUI Devices is believed to be accurate and reliable. However, no responsibility is assumed by CUI Devices for its use, nor for any infringements of patents or other rights of third parties which may result from its use. CUI Devices 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. cuidevices.com