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Silver cylindrical centrifugal blower with black impeller visible through intake, 280 mm diameter, 48 V 135 W rating label

SXDOOL

SXDOOL R3G280-AH33-31 280 mm centrifugal blower 48 V 135 W 2.8 A 2360 rpm

SKU CH-VSY0-MZSSE MPN R3G280-AH33-31

280 mm centrifugal blower runs on 48 V DC, drawing 2.8 A at 135 W and 2360 rpm for inverter cooling

  • Delivers strong airflow with 280 mm centrifugal design
  • Runs on 48 V DC at 135 W power draw
  • Spins at 2360 rpm for effective cooling performance
  • Draws only 2.8 A for efficient energy use
  • Weighs 3.7 kg for sturdy mounting stability

280 mm 48 V Centrifugal Blower

This 280 mm centrifugal blower runs on 48 V DC and draws 2.8 A for a rated power of 135 W. It is built for industrial HVAC equipment and frequency-converter cooling where a compact high-pressure airflow is required.

Sustained 2360 rpm Operation

The motor maintains 2360 rpm continuously at the rated 135 W load, so airflow and static pressure stay stable during long duty cycles. Thermal design targets the 700S/H inverter environment, meaning the blower handles prolonged heat-soak without speed drop-off.

3.7 kg Flange-Mount Installation

At 3.7 kg the unit bolts directly to standard Ebmpapst mounting flanges using four corner holes; no adapter brackets are needed. The only common issue is wiring the 48 V supply with insufficient conductor gauge, which causes voltage sag and triggers the inverter’s under-voltage protection.

Highlights

  • Delivers strong airflow with 280 mm centrifugal design
  • Runs on 48 V DC at 135 W power draw
  • Spins at 2360 rpm for effective cooling performance
  • Draws only 2.8 A for efficient energy use
  • Weighs 3.7 kg for sturdy mounting stability

Specifications

No published specifications for this item yet.

Questions about this item

How much heat does the 135 W centrifugal blower add to an enclosure when it runs continuously?

At 135 W continuous draw the R3G280-AH33-31 rejects roughly 135 W of heat into the cabinet, so plan ventilation or cooling capacity accordingly.

What power supply and wiring must I already have to run this 48 V 2.8 A blower?

You need a 48 V DC source capable of at least 2.8 A with wiring rated for the current and a compatible connector for the fan leads.

Will the 280 mm blower fit the same mounting pattern as the older 700S/H inverter fan I am replacing?

The R3G280-AH33-31 is built as a direct drop-in for the ABB 700S/H inverter fan, matching the original mounting holes and airflow orientation.

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