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The Blauberg GW-B250B-EC-M1 is a 115-230 VAC EC backward-curved centrifugal fan with a plastic impeller and IP55 protection. It operates at a rated speed of 2260 RPM and supports 0-10 V and PWM speed control.
| Model | GW-B250B-EC-M1 | Product Type | EC Backward-Curved Centrifugal Fan |
| Phase | 1~ | Rated Voltage | 115-230 VAC |
| Frequency | 50/60 Hz | Rated Speed | 2260 RPM |
| Maximum Input Power | 115 W | Maximum Input Current | 1.7 A |
| Sound Level | 68 dB(A) | Ambient Temperature | -25 deg C to +60 deg C |
| Certification | CCC, CE, RoHS | Release Date | 9 January 2024 |
| Dimensions | 300 x 300 x 131 mm | Impeller Material | Plastic |
| Rotation | Clockwise, viewed from rotor end | Rotor Surface | Powder coating |
| Degree of Protection | IP55 | Insulation Class | Class B |
| Duty | S1 | Bearing | Ball bearings |
| Motor Type | External-rotor EC motor | Operating Humidity | 5%-90% RH |
| Motor Protection | Locked-rotor, thermal, overvoltage, undervoltage, overcurrent and soft-start protection | Axial / Radial Runout | Not more than 0.5 mm |
| Lead Length | 500+/-20 mm | Conformity | RoHS |
| 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 |
The specification provides the performance curve with airflow Q in m3/h and pressure rise in Pa. The displayed curve covers approximately 0-1400 m3/h and 0-800 Pa. The specification does not state separate test-condition notes.
| Lead | Connection | Designation | Color | Function |
|---|---|---|---|---|
| Power Cable | PE | PE | Yellow / Green | Protective earth |
| Power Cable | U1 | L | Brown | Line |
| Power Cable | U2 | N | Blue | Neutral |
| Control Cable | U4 | +10V | Red | Control voltage +10 V |
| Control Cable | U5 | 0-10 V speed input | Yellow | 0-10 V / PWM speed input |
| Control Cable | U6 | FG | White | Speed-signal output |
| Control Cable | U7 | GND | Blue | Control ground |
Note
Connect the power and control lines strictly according to the wiring diagram to prevent damage to the fan.
Do not connect the white signal wire directly to the red signal wire or an external DC power supply.
If the fan does not operate after power-on, check the speed-control input voltage and wiring. To prevent injury from sudden start-up, do not touch the impeller or rotor after power is applied.
The fan takes several seconds to start after power-on. Do not touch the impeller or rotor while energized or operating at low speed.
Persons lacking physical, mental or sensory capability, or suitable practical experience, must not use the fan without supervision by a person responsible for safety. Keep the fan away from children.
If the power cable is damaged, it must be replaced by the manufacturer.
The motor is part of the fan and must not be operated independently without an impeller or load.
Repack the product for storage. Store it in a clean, ventilated warehouse at -40 deg C to +80 deg C, relative humidity not exceeding 95%, without corrosive gases and at least 15 cm above the floor.
Read this technical specification carefully before use.
GW-B250B-EC-M1-Technical-Specification.pdf
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