Fans
Fans 280 mm Centrifugal Cooling Fan 400 VAC 1000 W
Centrifugal cooling fan delivering up to 35000 m³/h airflow at 3100 rpm with 1000 W power draw
- 35,000 m³/h airflow capacity for demanding industrial cooling
- 400 VAC three-phase power with 380–480 V range for stable operation
- External rotor motor design enables compact installation and efficient motor cooling
- 100 % speed control via analog or serial interface for precise regulation
- Operates reliably from -25 °C to 60 °C ambient temperature range
280 mm 400 VAC Centrifugal Fan
The K3G280-AU11-C1 is a three-phase industrial centrifugal cooling fan built for continuous duty in HVAC, photovoltaic tracking and heavy-duty ventilation systems. Its external-rotor motor sits inside the impeller for compact installation and direct motor cooling. The unit delivers up to 35 000 m³/h airflow at 3 100 rpm while drawing 1.6 A at 400 VAC. It operates reliably from -25 °C to 60 °C ambient temperature.
Wiring and Mounting Notes
The fan accepts a nominal 380–480 VAC supply at 50/60 Hz and requires a three-phase connection; single-phase mains will not work. No scroll housing is included, so the backward-curved impeller must be mounted as a free-wheeling unit with adequate inlet clearance. Verify that the control interface matches your analogue or serial speed-control signal before commissioning. Incorrect phasing or voltage outside the stated range will trip protection or damage the motor.
1 000 W Power Rating Decides Fit
The 1 000 W power consumption figure is the primary specification that determines whether this fan matches your system's electrical design and thermal load. Cross-reference this value against your available circuit capacity and the required airflow target before purchase.
Βασικά χαρακτηριστικά
- 35,000 m³/h airflow capacity for demanding industrial cooling
- 400 VAC three-phase power with 380–480 V range for stable operation
- External rotor motor design enables compact installation and efficient motor cooling
- 100 % speed control via analog or serial interface for precise regulation
- Operates reliably from -25 °C to 60 °C ambient temperature range
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How can I confirm the fan is running at the rated 3100 rpm after installation?
Measure the motor speed with a tachometer; it should read 3100 min-1 when supplied with 400 VAC at 50 or 60 Hz and drawing 1.6 A
What is included in the shipment and what must be sourced separately?
The unit ships as the K3G280-AU11-C1 centrifugal fan with 280 mm impeller and external rotor motor; mounting hardware, ducting and 3-phase 400 VAC supply wiring are not included
Which voltage-range version should I select for a 380–480 VAC three-phase supply?
The listed model operates across the full 380–480 VAC range at 50/60 Hz, so a single version covers the entire nominal voltage span
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