R3G250-RK55-05 ebm-papst Centrifugal Fan

Brand :: ebmpapst

Model:: R3G250-RK55-05 | ebm-papst 48V 105W Centrifugal Fan for Air Purification

Type:: Centrifugal Fans

Industry:: HVAC & Ventilation

Description:: Designed for Air Purification, the ebm-papst R3G250-RK55-05 is a 48 V EC backward-curved centrifugal fan, distinguished by a listed acoustic value of 62 dB. The rating clarifies its operating profile.

Datasheet:: R3G250-RK55-05 | ebm-papst 48V 105W Centrifugal Fan for Air Purification Datasheet (Pdf)

Product Features

Rated Voltage(V)	48
Size(mm)	250
Max.Air Flow(m³/h)	1190
Max.Pressure(Pa)	350
Input Power(W)	105
Speed(rpm)	2250
Noise(db)	62

Product Features

Efficient EC Cooling

The ebm-papst R3G250-RK55-05 is an EC centrifugal fan for HVAC and Ventilation, combining application-focused airflow with practical integration criteria. It serves equipment manufacturers and maintenance teams that require traceable model selection.

Documented selection points include 48 V supply, 105 W input, 250 mm size, up to 1190 m3/h airflow. These values support electrical, envelope and duty-point comparison.

For procurement, verify voltage, duty point, dimensions, connector and mounting. Correct sizing and clear airflow paths support stable operation, controlled noise and long service life. Confirm speed control, IP protection and approvals in the exact-model datasheet. This approach helps OEMs reduce integration risk and plan dependable thermal performance.

Application Industry

HVAC Systems

Applied in HVAC and ventilation equipment to move and circulate air through the system. This industrial fan supports heat exchange, indoor-air management and reliable operation of climate-control equipment.

Product Insights

AC to EC Replacement — R3G RadiPac EC Centrifugal

The ebm-papst R3G250-RK55-05 from the RadiPac EC Centrifugal series is a direct energy-saving replacement for legacy AC fans including R4D, R2D. Key benefits:

35-50% energy savings — EC motor variable speed matches airflow demand precisely
Identical mm mounting — no ductwork modification needed
0-10V/PWM speed control — integrates with Building Management Systems
40,000+ hour bearing life — double the typical AC fan lifespan

R3G EC fans operate at V with W rated power. When replacing AC models, wire the 0-10V control signal alongside the standard three-phase power cable.

R3G Series Comparison — R3G250-RK55-05 vs Variants

How the R3G250-RK55-05 compares to nearby R3G series variants:

Model	R3G630-PC08-03	R3G190-RC05-03	R3G220-RC05-03	R3G220-RC09-08
Air Flow	12470 m³/h	735 m³/h	—	—
Power	4250 W	83 W	85 W	51 W
Noise	74 dB	— dB	— dB	— dB
Size	630 mm	190 mm	220 mm	220 mm

All R3G series fans from Hengrui include performance curves, mounting instructions and factory warranty. Contact us for project-specific selection.

Typical Applications — R3G250-RK55-05 RadiPac EC Centrifugal

Data Center CRAH/CRAC Units: The R3G250-RK55-05 delivers reliable cooling for Computer Room Air Handling with 24/7 uptime. EC motor enables precise temperature control.

AHU Air Handling: Engineered for integration into Air Handling Units.

Industrial Process Ventilation: Machinery cooling, enclosure ventilation and process air movement. Hengrui provides custom engineering support.

Frequently Asked Questions

What supply voltage does the R3G250-RK55-05 require?

The supplied table lists 48 V. Verify supply type, frequency, wiring and permissible tolerances before commissioning.

What installation checks apply to the R3G250-RK55-05?

Verify mounting orientation, inlet and outlet clearance, fastener security, electrical connections and the exact dimensional drawing before startup.

What should be inspected if airflow drops on the R3G250-RK55-05?

Check for blocked airflow paths, incorrect supply, loose wiring, abnormal rotation or system resistance before consulting the exact service documentation.

Related Products

R3G225-8317084118 | ebm-papst 1~ 200-277V Centrifugal Fan for Air Purification

Designed for Air Purification, the ebm-papst R3G225-8317084118 is a 200-277V EC backward-curved centrifugal fan, defined by 225 mm dimensions for installation planning. The data helps compare K-series variants.

R3G280-8317084540 | ebm-papst Centrifugal Fan for Cleanroom

In Cleanroom equipment, R3G280-8317084540 is an EC backward-curved centrifugal fan whose documented profile includes 280 mm dimensions for installation planning; the supplied table leaves the rated voltage unspecified.

R3G310-8317083844 | ebm-papst Centrifugal Fan for Cleanroom

The R3G310-8317083844 serves Cleanroom as an EC backward-curved centrifugal fan, with 310 mm dimensions for installation planning as its clearest supplied attribute. No rated voltage is listed in the provided table.

R3G400-8317084403 | ebm-papst Centrifugal Fan for Cleanroom

For Cleanroom, R3G400-8317084403 provides an EC backward-curved centrifugal fan format with 400 mm dimensions for installation planning. Rated voltage is not shown in the supplied table and must be checked before selection.

R3G400-8317080005 | ebm-papst Centrifugal Fan for Cleanroom

Intended for Cleanroom, the R3G400-8317080005 is an EC backward-curved centrifugal fan characterized by 400 mm dimensions for installation planning. Its rated voltage is absent from the supplied data and requires confirmation.

R3G355-8317084543 | ebm-papst Centrifugal Fan for Cleanroom

Specified as an EC backward-curved centrifugal fan for Cleanroom, R3G355-8317084543 is distinguished by 355 mm dimensions for installation planning. Confirm rated voltage separately because it is not present in the supplied table.

R3G250-RK55-05 ebm-papst Centrifugal Fan

Product Features

Product Features

Efficient EC Cooling

Application Industry

HVAC Systems

Product Insights

AC to EC Replacement — R3G RadiPac EC Centrifugal

R3G Series Comparison — R3G250-RK55-05 vs Variants

Typical Applications — R3G250-RK55-05 RadiPac EC Centrifugal

Frequently Asked Questions

What supply voltage does the R3G250-RK55-05 require?

What installation checks apply to the R3G250-RK55-05?

What should be inspected if airflow drops on the R3G250-RK55-05?

Related Products

R3G225-8317084118 | ebm-papst 1~ 200-277V Centrifugal Fan for Air Purification

R3G280-8317084540 | ebm-papst Centrifugal Fan for Cleanroom

R3G310-8317083844 | ebm-papst Centrifugal Fan for Cleanroom

R3G400-8317084403 | ebm-papst Centrifugal Fan for Cleanroom

R3G400-8317080005 | ebm-papst Centrifugal Fan for Cleanroom

R3G355-8317084543 | ebm-papst Centrifugal Fan for Cleanroom

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