1. Product Introduction
This NIDEC TA225DC B34605-33 cooling fan is designed with a high-efficiency motor and optimized blade structure to provide rapid device cooling through forced air convection. It offers ample airflow, stable operation, low noise, long service life, and easy installation. This fan is widely used in various electrical equipment and industrial devices that require ventilation and heat dissipation.
Applicable Range: Chassis, cabinets, power supplies, industrial control equipment, home appliances, ventilation and cooling systems.
Figure 1: Front view of the NIDEC TA225DC B34605-33 cooling fan.
Figure 2: Back view of the NIDEC TA225DC B34605-33 cooling fan.
2. Technical Specifications
DC Fan (Model: TA225DC B34605-33)
| Attribute | Value |
|---|---|
| Brand | NIDEC |
| Model Number | TA225DC B34605-33 |
| Size | 60*60*25mm |
| Rated Voltage | DC 12V |
| Current | 0.58A |
| Power | 6.96W |
| Rotational Speed | 6800 RPM |
| Airflow | 32 CFM |
| Noise | 43 dB(A) |
| Bearing | Two Ball Bearing |
| Lines | 3 LINES |
| Power Interface | Others |
| Used For | Case, Radiator |
| Certification | CE |
| Package | Yes |
| High-concerned chemical | None |
General DC Fan Specifications (from manual)
- Rated Voltage: DC 12V / 24V
- Operating Voltage Range: ±10% of rated voltage
- Rotational Speed: 2000-4500 RPM
- Airflow: 30-120 CFM
- Noise: 22-45 dB(A)
- Wiring Definition: Red wire (positive), Black wire (negative), Yellow wire (tachometer), Blue wire (PWM speed control)
General AC Fan Specifications (from manual)
- Rated Voltage: AC 110V / 220V
- Frequency: 50/60Hz
- Speed: 2200-2800 RPM
- Insulation Class: B
- Protection Class: IP44
3. Installation Guide
- Power Off: Before installation, the device must be powered off. Operation with power on is strictly prohibited.
- Confirm Fan Direction: The airflow outlet should face outward, and the airflow inlet should face inward toward the device.
- Secure Mounting: Use matching screws to secure evenly. Avoid screws that are too long, as they may damage the internal structure of the fan.
- Wiring: Wiring must strictly follow the labels. Reverse connection, incorrect connection, or short circuit is strictly prohibited.
- Post-Installation Check: After installation, check that the fan blades move freely and are not loose. Then, power on to test.
4. Instructions for Use
- Initial Operation: After powering on, the fan should start smoothly without shaking or unusual noise. This is considered normal operation.
- Speed Control: Models with speed measurement and speed adjustment functions can connect to the corresponding interfaces for speed monitoring and automatic speed control.
- Maintain Airflow: Keep the fan's air inlet and outlet unobstructed and free of debris during use.
- Operating Environment: Do not operate continuously in environments exceeding the rated voltage or temperature.
5. Care and Maintenance
- Regular Cleaning: Regularly turn off the power to clean the fan blades and frame dust. You can use a soft brush or an air blower for cleaning.
- Avoid Water: Do not rinse directly with water to prevent liquid from entering the fan.
- Pre-Use Check (After Storage): After long-term storage, check the wiring and fan blades before use, and only power on after confirming there are no issues.
- Professional Maintenance: Non-professionals should not add lubricating oil or disassemble bearings and other components.
6. Safety Precautions
- Do not use in damp, waterlogged, flammable, explosive, or highly corrosive environments.
- When the fan is running, do not insert fingers, tools, or other foreign objects into the fan.
- Do not disassemble, modify, or press the fan blades or internal components without authorization.
- If abnormal sounds, vibrations, stoppage, or burning smells occur during operation, immediately cut off the power and check.
- This product is not explosion-proof or waterproof; do not use it in special hazardous conditions.
7. Troubleshooting
| Malfunction Phenomenon | Possible Cause | Solution |
|---|---|---|
| Fan not spinning | Poor power connection, reversed polarity, abnormal voltage | Check wiring, power supply, and voltage |
| Excessive noise | Fan blades dirty, loose installation, blocked air duct | Clean dust, tighten installation, clear air duct |
| Unstable speed | Voltage fluctuation, abnormal speed control signal | Stabilize power supply, check speed control interface |
| Fan blades stuck | Foreign objects, damaged bearing | Remove foreign objects, replace fan |
8. Warranty & Support
- The product is covered by a warranty service against non-human damage under normal use.
- Damage caused by unauthorized modifications, water immersion, overloading, or improper installation is not covered by the warranty.
- If a performance failure occurs within the warranty period, you can contact the dealer for replacement or repair.
9. User Tips
No specific user tips were available from the provided reviews or Q&A content.
Video 1: General demonstration of a cooling fan in operation. Note: The fan shown in the video is an AVC 8025 8cm fan, not the NIDEC TA225DC B34605-33 model.
For additional information or a detailed user manual, please refer to the official PDF document: User Manual (PDF)
