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Black cylindrical centrifugal fan with integrated motor housing, branded ebmpapst Germany, model R1G220-AB73-52

Fans

Fans R1G220-AB73-52 48 V 2.4 A centrifugal case fan

SKU CH-B0PX-A6PAN

Centrifugal case fan running at 3100 rpm with 100 W draw and 48 V supply for air purifiers and industrial cooling

  • Runs on 48 V DC with 2.4 A draw for reliable power
  • Spins at 3100 rpm delivering up to 35000 m³/h airflow
  • Operates from -25 °C to 60 °C for harsh environments
  • External rotor motor design gives compact size and forced cooling
  • Sturdy steel-plate housing ensures durability in continuous use

Industrial centrifugal fan for 48 V systems

This 48 V DC centrifugal fan is built for industrial enclosures, air purifiers and server chassis that require directed airflow through ducting or restrictive grilles. It suits integrators who need a compact blower that can be speed-controlled via analogue or serial interfaces.

100 W at 3100 rpm with 36–57 V input range

The motor draws 2.4 A at nominal voltage, delivering up to 35000 m³/h of airflow while operating from 36 V to 57 V DC. At 100 W the impeller reaches 3100 rpm, providing strong static pressure; headroom drops if the supply sags below 36 V or if back-pressure exceeds the fan curve.

Rated –25 °C to 60 °C with external-rotor cooling

The external-rotor design uses the airstream to cool the motor directly, keeping surface temperatures low across the full ambient range. No scroll housing is required for this backward-curved blade variant, reducing mechanical noise in ducted installations while maintaining stable output at 48 V nominal.

How it compares

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Price $63.99
Pricier than about 90% of the 8,339 comparable items (median $19.99).

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Specifications

No published specifications for this item yet.

Questions about this item

Will the R1G220-AB73-52 fan run reliably on my existing 48 V DC power supply that can deliver up to 2.4 A?

Yes, the fan’s nominal voltage is 48 VDC with an operating range of 36 to 57 VDC and it draws 2.4 A at full load, so a 48 V supply rated for at least 2.4 A will power it correctly.

How can I verify the fan is operating at its intended speed after installation?

The fan is specified to run at 3100 rpm; you can confirm it is working as intended by measuring the rotational speed with a tachometer or motherboard fan header reporting 3100 rpm under normal conditions.

Does the R1G220-AB73-52 come with a mounting bracket, power cable or scroll housing, or must I purchase those separately?

The supplier data lists only the centrifugal fan unit itself; no mounting bracket, power cable or scroll housing is mentioned, so you will need to source any required mounting hardware and wiring separately.

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