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The Blauberg GC-B280D-EC-01 is a 115 VAC EC backward-curved centrifugal plug fan with an aluminium-alloy impeller. It operates at a nominal speed of 1710 RPM and supports 0-10 VDC or PWM speed control.
| Model | GC-B280D-EC-01 | Product Type | EC Backward-Curved Centrifugal Plug Fan |
| Motor | EC072AC 115 V 170 W | Phase | 1~ |
| Nominal Voltage | 115 VAC | Nominal Voltage Range | 92-138 VAC |
| Frequency | 50/60 Hz | Method of Obtaining Data | FA (Free Air) |
| Nominal Speed | 1710 RPM (+/-5%) | Maximum Input Power | 170 W |
| Maximum Input Current | 2.4 A | Sound Level | 73 dB(A) |
| Ambient Temperature | -25 deg C to +60 deg C | Conformity | CCC, CE, RoHS |
| Fan Size | 280 x 280 x 154 mm | Motor Size | 72 |
| Impeller | Aluminium alloy, 8 blades | Air Flow | All around |
| Rotation | Clockwise, viewed toward rotor | Installation Position | Any |
| Degree of Protection | IP55 | Insulation Class | Class B |
| Duty / Bearing | S1 / Ball bearing | Control | 0-10 VDC / PWM, maximum PWM input 10 VDC |
| Voltage Output | 10 VDC, maximum 10 mA | Cable Length | 500 +/-20 mm |
| Protection | Locked-rotor, thermal, overvoltage, undervoltage, overcurrent and soft-start protection | Dielectric Strength | 1800 VAC / 50 Hz, 1 s; leakage current not more than 10 mA |
| 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 was measured according to AMCA210/GB1236 installation category A. The curve covers approximately 0-2250 m3/h and 0-540 Pa. Values apply under the specified measuring conditions and may vary with installation conditions.
| Line | Connection | Designation | Colour | Function |
|---|---|---|---|---|
| Power | PE | PE | Green / Yellow | Protective earth |
| Power | U1 | L | Brown | Power supply, live wire |
| Power | U2 | N | Blue | Power supply, neutral wire |
| Control | U4 | +10 V | Red | Fixed 10 VDC output, maximum 10 mA |
| Control | U5 | Speed Control | Yellow | 0-10 VDC / PWM control input |
| Control | U6 | Signal Feedback | White | Tach output, 2 pulses per revolution |
| Control | U7 | GND | Blue | Reference ground for control interface |
Note
Connect the power and control lines strictly according to the wiring diagram.
Do not connect the white signal wire directly to the red signal wire or an external DC power supply.
If the fan does not start, check the speed-control input voltage and wiring. Do not touch the impeller or rotor after power is applied.
The fan takes several seconds to start. Do not touch the impeller or rotor while energized or at low speed.
Check that the motor is installed securely before power-on.
Do not pull the power cable; a damaged cable must be replaced by the manufacturer.
Do not drop or impact the motor.
Do not flush the motor.
Consult Blauberg before use outside the agreed operating conditions.
The motor casing may remain hot after operation; use burn-protection measures if necessary.
Keep debris out of the casing during installation.
Turn the rotor by hand before start-up and confirm that it moves without collision or jamming.
The motor must not operate without an impeller or load.
Store the repacked product in a clean, ventilated warehouse at -40 deg C to +80 deg C, RH no more than 95%, without corrosive gases, at least 15 cm above the floor.
Keep the fan out of reach of children.
The final interpretation right of this specification belongs to Blauberg.
Life and maintenance, warranty
The design life is 50,000 hours, limited by ball-bearing life at 40 deg C. Actual service life varies with temperature, humidity, installation, load and other use conditions.
Clean and maintain the fan every 3-6 months according to the environment.
The whole-machine warranty period is two years from purchase/delivery. Damage caused by improper disassembly, handling, man-made damage, natural disasters or force majeure is excluded.
GC-B280D-EC-01-Technical-Specification.pdf
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