Suzhou Blauberg Motoren Technology Co., Ltd. is one of the leading manufacturers and suppliers of blauberg dc-f146b-ec-v2 146mm ec dual inlet centrifugal blower in China. Welcome to buy bulk high quality customized products made in China here and get quotation from our factory. For price consultation, contact us.
Basic Info
| Model | DC-F146B-EC-V2 | Product Type | EC Dual Inlet Centrifugal Blower |
| Phase | 1~ | Rated Voltage | 115 VAC |
| Voltage Range | 92–138 VAC | Frequency | 50/60 Hz |
| Nominal Speed | 2400 ±5% RPM | Max. Input Power | 115 W |
| Max. Input Current | 1.6 A | Sound Level | 66 dB(A) |
| Ambient Temperature | -25 to +60 °C | Certification | CCC, CE, RoHS |
| Protection | IP55 | Insulation Class | Class B |
Technical Description
| Dimensions | 229.5 × 277.3 × 229 mm | Weight | 2 kg |
| Motor Model | EC072AC115V115W | Motor Size | 72 mm |
| Impeller | Plastic, 59 blades | Airflow Direction | All around |
| Rotation | Clockwise, viewed toward rotor | Housing / Rotor | Stretched housing / blue powder-coated rotor |
| Mounting Position | Any position | Operating Mode | S1 continuous duty |
| Bearing | Ball bearing | Cable Length | 260 ±20 mm |
| Humidity | Operation 5%–90% RH; storage 5%–95% RH | Storage Temperature | -40 to +80 °C |
| Electrical Safety | 1800 VAC/50 Hz for 1 s; leakage ≤10 mA; touch current ≤3.5 mA | Control | 0–10 VDC / PWM |
| Motor Protection | Locked rotor, thermal, over/undervoltage, overcurrent and soft start | Screw Strength | Class 8.8 |
Product Application
| 1 | Charging Column | 9 | Equipment Cooling Project |
| 2 | Kitchen Smoke Exhaust System | 10 | Ventilation Unit Project |
| 3 | FFU Project | 11 | AHU Project |
| 4 | Computer Room Cooling | 12 | Air Purifier Project |
| 5 | Rail Transit Air-Conditioning | 13 | Heat Exchanger Project |
| 6 | Electrical Appliances | 14 | Telecom Container Project |
| 7 | FanGrid Project | 15 | Data Center Cooling Project |
| 8 | Ventilation Equipment Project | 16 | Industrial Cooling System |
Air Performance
Overall Dimensions
Electrical Connection
| Line | Conn. | Designation | Colour | Function / Assignment |
| Power Line | PE | Green/Yellow | Protective earth | |
| Power Line | U1 | L | Brown | Mains power supply, live conductor |
| Power Line | U2 | N | Blue | Mains power supply, neutral conductor |
| Control Line | U4 | +10 V | Red | Fixed 10 VDC output, ±5%, max. 10 mA; external device supply; SELV |
| Control Line | U5 | Speed Control | Yellow | 0–10 V/PWM input; maximum PWM amplitude 10 V; SELV |
| Control Line | U6 | Signal Feedback | White | Tach output, 2 pulses/revolution; customisable or convertible to RD signal; SELV |
| Control Line | U7 | GND | Blue | Reference ground for control interface; SELV |
Speed Control Settings
| Control Method | Operating Condition |
| Full speed | Short the red (+10 V) and yellow (speed-control) conductors. |
| 0–10 VDC | Motor starts above 1.0 V and stops below 0.5 V. |
| PWM | Frequency 1–10 kHz; recommended amplitude 10 V ±5%. Motor starts above 10% duty and stops below 5% duty. |
| Potentiometer | A 10 kΩ potentiometer is recommended. |
Note
| 1 | Connect the power and control conductors strictly according to the wiring diagram. |
| 2 | Do not connect the white signal-feedback conductor directly to the red conductor or to an external DC power supply. |
| 3 | If the blower does not start, check the speed-control input. Prevent injury from an unexpected start and never touch the rotor while energised. |
| 4 | Startup may take several seconds. Do not touch the impeller or rotor while energised or operating at low speed. |
| 5 | Before applying power, verify that the motor and blower assembly are installed securely. |
| 6 | Do not pull the power cable. A damaged cable must be replaced by the manufacturer. |
| 7 | Do not drop or strike the motor. |
| 8 | Do not wash the motor; moisture can reduce insulation performance and create a safety hazard. |
| 9 | Consult the manufacturer before using the product outside the agreed operating conditions. |
| 10 | The motor casing may remain hot for a short time after shutdown. Take measures to prevent burns. |
| 11 | Keep the housing clean and prevent debris from entering during installation. |
| 12 | Before initial operation, rotate the rotor by hand to confirm that there is no collision, interference or jamming. |
| 13 | The motor is part of the blower and must not be operated alone without an impeller or load. |
| 14 | For storage after unpacking, repack the product and keep it at -40 to +80 °C, RH ≤95%, in a clean ventilated area free of corrosive gases and at least 15 cm above the floor. |
| 15 | Install the blower out of children's reach and do not allow children to operate it. |
| 16 | The manufacturer reserves final interpretation of this specification. |
Life and Maintenance, Warranty
| 1 | The design life is 50,000 hours, limited by ball-bearing life at 40 °C. Actual service life depends on temperature, humidity, installation, load and the operating environment. |
| 2 | Clean and maintain the blower every 3–6 months, adjusted as appropriate for the operating environment. |
| 3 | The complete product is covered by a two-year warranty from the delivery date. Product-quality failures will be repaired or replaced. Damage caused by unauthorised disassembly, improper handling, human action, natural disaster or other force majeure is excluded. |
Download
DC-F146B-EC-V2 Product Specification.pdf
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