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The Blauberg GK-B310E-EC-05 is a three-phase 220 VAC EC backward-curved centrifugal plug fan with a support frame and metal impeller. It operates at 2960 RPM and supports 0-10 VDC or PWM speed control, tachometer feedback, a status relay and RS485 communication.
Basic Info
| Model | GK-B310E-EC-05 | Product Type | EC Backward-Curved Centrifugal Plug Fan |
| Phase | 3~ | Nominal Voltage | 220 VAC |
| Frequency | 50/60 Hz | Nominal Speed | 2960 RPM |
| Maximum Input Power | 700 W | Maximum Input Current | 2.1 A |
| Sound Level | 85 dB(A) | Ambient Temperature | -25 deg C to +60 deg C |
| Conformity | CCC, RoHS | Humidity | 5%-90% RH |
Technical Description
| Dimensions | 440 x 440 x 276.5 mm | Impeller | Metal |
| Motor | External-rotor EC motor | Rotation | Clockwise, viewed toward rotor |
| Rotor Surface | Plastic-sprayed finish | Degree of Protection | IP55 |
| Insulation Class | Class F | Duty / Bearing | S1 / Ball bearing |
| Speed Control | 0-10 VDC / PWM, maximum PWM amplitude 10 V | Voltage Output | +10 VDC |
| Communication | RS485 | Signal Feedback | Tachometer output |
| Protection | Locked-rotor, thermal, overvoltage, undervoltage, overcurrent and soft-start protection | Cable Length | 500 +/-20 mm |
| Impeller Axial Deviation | Not more than 1 mm | Impeller Radial Deviation | Not more than 1 mm |
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
The fan performance curve covers approximately 0-4000 m3/h and 0-1050 Pa under the specified test conditions. Actual operating performance may vary with installation conditions.
Overall Dimensions
Electrical Connection
| Line | Connection | Designation | Colour | Function |
|---|---|---|---|---|
| Power | PE | PE | Green / Yellow | Protective earth |
| Power | U0 | L1 | Blue | Power supply phase |
| Power | U1 | L2 | Brown | Power supply phase |
| Power | U2 | L3 | Black | Power supply phase |
| Power | U3 | NC | White | Normally-closed switch / circuit breaker |
| Power | U4 | COM | Gray | Common terminal |
| Control | U5 | RSA | Brown | RS485 interface |
| Control | U6 | RSB | Gray | RS485 interface |
| Control | U7 | Speed Control | Yellow | 0-10 VDC / PWM input |
| Control | U8 | Signal Feedback | White | Tachometer signal output |
| Control | U9 | +10 V | Red | +10 VDC output |
| Control | U10 | GND | Blue | Control ground |
The speed output uses a customer-provided pull-up resistor. Vfg = 3-30 VDC and R must be at least 1000 x Vfg ohms.
Additional Notes
- Connect the fan power and control lines strictly according to the wiring diagram.
- 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.
- To meet the EN 55014 electromagnetic-compatibility requirement, install an additional magnetic ring on the power cable.
- This product may be used only by qualified personnel or under proper supervision. Keep children away from it.
- 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 for storage. 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.
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GK-B310E-EC-05
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