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BL-A400C-EC-05 is a 400 mm EC axial fan with a 230 VAC single-phase external-rotor EC motor. It supports 0-10 V / PWM speed control, RS485 communication and speed-signal feedback.
Basic Info
| Model | BL-A400C-EC-05 | Fan Type | EC Axial Fan |
| Voltage | 230 VAC | Frequency | 50/60 Hz |
| Phase | Single phase (1~) | Rated Speed | 1800 RPM |
| Max. Input Power | 700 W | Max. Input Current | 3.1 A |
| Sound Level | 73 dB(A) | Ambient Temperature | -25°C to +60°C |
| Certification | CCC, CE | RoHS | All components comply with RoHS requirements |
Technical Description
| Dimensions | 400 x 400 x 157 mm | Duty Type | S1 |
| Impeller | Plastic | Bearing | Ball bearing |
| Rotation | Clockwise, viewed from rotor side | Rotor Surface | Powder coated |
| Protection Rating | IP55 | Insulation Class | F |
| Motor Type | External-rotor EC motor | Lead Length | 500 +/- 20 mm |
| Operating Humidity | 5% to 90% RH | Impeller Runout | Axial and radial runout |
| Protection Functions | Locked-rotor, thermal, high-/low-voltage, overcurrent protection and soft start | ||
Product Application
| 1 | Ventilation equipment | 9 | Equipment cooling projects |
| 2 | Air handling units | 10 | Cabinet ventilation |
| 3 | Industrial cooling | 11 | Control cabinets |
| 4 | HVAC systems | 12 | Heat exchanger equipment |
Air Performance
Air-performance curve reproduced from the BL-A400C-EC-05 technical specification.
Overal Dimmensions
Overall size: 400 x 400 x 157 mm. Dimensional values are shown in millimetres.
Electrical Connection
| Line | Terminal | Connection | Colour | Function |
|---|---|---|---|---|
| Power Line | PE | - | Yellow/green | Protective earth |
| U1 | L | Brown | Live wire | |
| U2 | N | Black | Neutral wire | |
| U3 | NC | White | Normally closed switch / circuit breaker | |
| U4 | COM | Gray | Common terminal | |
| Control Line | U5 | RSA | Brown | RS485 port |
| U6 | RSB | Gray | RS485 port | |
| U7 | Speed control | Yellow | 0-10 V and PWM-compatible input | |
| U8 | FG | White | Speed-signal output | |
| U9 | +10 V | Red | Control power output | |
| U10 | GND | Blue | Control ground |
Note
Connect the power and control wires strictly according to the wiring diagram to prevent fan 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 operate after start-up, check the speed-control input voltage and connections. 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.
For EMC compliance to EN55014, an additional magnetic ring is required on the power line.
Persons lacking the required physical, mental or sensory capability or practical experience must use the fan only under responsible supervision. Keep children away from the product.
A damaged power cord must be replaced by the manufacturer.
The motor is part of the fan and must not be operated separately without an impeller or load.
After unpacking, repackage the product for further storage. Store at -40°C to +80°C, maximum 95% RH, in a clean, ventilated, non-corrosive warehouse at least 15 cm above the floor.
Download
BL-A400C-EC-05 Technical Specification.pdf
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