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The Blauberg GL-B280D-EC-F05 is a 230 VAC EC backward-curved centrifugal plug fan with a metal impeller. It operates at a nominal speed of 2900 RPM and supports 0-10 VDC or PWM speed control.
| Model | GL-B280D-EC-F05 | Product Type | EC Backward-Curved Centrifugal Plug Fan |
| Phase | 1~ | Nominal Voltage | 230 VAC |
| Frequency | 50/60 Hz | Nominal Speed | 2900 RPM |
| Maximum Input Power | 500 W | Maximum Input Current | 2.3 A |
| Sound Level | 80 dB(A) | Ambient Temperature | -25 deg C to +60 deg C |
| Conformity | CCC, CE | Motor Type | External-rotor EC motor |
| Fan Size | 400 x 400 x 216.5 mm | Impeller Material | Metal |
| Rotation | Clockwise, viewed toward rotor | Installation Position | Any |
| Degree of Protection | IP44 | Insulation Class | Class F |
| 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 |
| Operating Humidity | 5%-90% RH | Materials Compliance | RoHS-compliant materials |
| Protection | Locked-rotor, thermal, overvoltage, undervoltage, overcurrent and soft-start protection | Impeller Deviation | Axial and radial deviation not more than 1 mm |
| 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 0-3200 m3/h and 0-1300 Pa. Values apply under the specified measuring conditions and may vary with installation conditions.
| Fan Size | 400 x 400 x 216.5 mm | Cable Length | 500 +/-20 mm |
| 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 | U3 | RSA | Brown | RS485 port |
| Control | U4 | RSB | Gray | RS485 port |
| Control | U5 | Speed Control | Yellow | 0-10 VDC / PWM control input, maximum PWM value 10 V |
| Control | U6 | Signal Feedback | White | Tach output, 5 pulses per revolution |
| Control | U7 | +10 V | Red | External 10 VDC output |
| Control | U8 | GND | Blue | Reference ground for control interface |
Additional Notes
Connect the fan power and control lines strictly according to the wiring diagram to prevent damage.
Do not connect the white signal wire directly to the red signal wire or to 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 operating at low speed.
For EMC compliance with EN55014, an additional magnetic ring is required on the power line; the magnetic ring is not included with the fan.
Persons lacking the necessary physical, sensory or mental capabilities, or practical experience, may use the fan only under supervision. Keep it out of reach of children.
If the power cable is damaged, it must be replaced by the manufacturer.
The motor is part of the fan and must not operate without an impeller or load.
After unpacking, repackage the product if storage is required. Store it in a clean, ventilated warehouse at -40 deg C to +80 deg C, relative humidity not more than 95%, without corrosive gases, and at least 15 cm above the floor.
Read the technical specification carefully before use.
GL-B280D-EC-F05-Technical-Specification.pdf
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