K3G280-RR03-H4 ebm-papst Centrifugal Fan

Brand :: ebmpapst

Model:: K3G280-RR03-H4 | ebm-papst 3~380-480V 460W EC Centrifugal Fan for Motor Cooling

Type:: Centrifugal Fans

Industry:: Automation

Description:: Selected for Motor Cooling, the ebm-papst K3G280-RR03-H4 is a 380-480V EC backward-curved centrifugal fan, documented with a documented 460 W input rating. The data supports model-level evaluation.

Datasheet:: K3G280-RR03-H4 | ebm-papst 3~380-480V 460W EC Centrifugal Fan for Motor Cooling Datasheet (Pdf)

Product Features

Rated Voltage(V)	3`380-480
Size(mm)	280
Input Power(W)	460
Speed(rpm)	2550

Product Features

Reliable Blower

The ebm-papst K3G280-RR03-H4 is an EC centrifugal blower for motor cooling, providing directed airflow in enclosures and cooling assemblies.

Data includes 3`380-480 V operation for matching airflow to system resistance. The datasheet lists ball-bearing support, IP55 protection, PWM/0-10 V/MODBUS speed control for durable motor support. Installed noise depends on the duty point and airflow path. Correct electrical selection and clear inlet spacing support efficient cooling, reliable operation and long fan life.

Suitable for OEM engineers, manufacturers and maintenance buyers, the K3G280-RR03-H4 should be checked for wiring, mounting, duty point and ambient limits before selection. Its documented operating data supports model comparison, replacement planning and purchasing review.

Application Industry

Motor Cooling

The K3G280-RR03-H4 ebm-papst fan is used in industrial motor systems to remove accumulated heat around the motor body, supporting stable duty cycles and reducing thermal stress on nearby components.

Product Insights

AC to EC Replacement — K3G Compact EC Centrifugal

The ebm-papst K3G280-RR03-H4 from the Compact 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

K3G 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.

K3G Series Comparison — K3G280-RR03-H4 vs Variants

How the K3G280-RR03-H4 compares to nearby K3G series variants:

Model	K3G097-AK34-43	K3G190-RD45-03	K3G250-AV29-B2	K3G250-PR17-W9
Air Flow	1195 m³/h	524 m³/h	3120 m³/h	2405 m³/h
Power	325 W	169 W	750 W	1160 W
Noise	— dB	— dB	63 dB	— dB
Size	97 mm	190 mm	250 mm	250 mm

All K3G series fans from Hengrui include performance curves, mounting instructions and factory warranty. Contact us for project-specific selection.

Typical Applications — K3G280-RR03-H4 Compact EC Centrifugal

Data Center CRAH/CRAC Units: The K3G280-RR03-H4 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

Can the K3G280-RR03-H4 help control total ownership cost?

Correct sizing and operation within documented limits can reduce avoidable thermal stress and maintenance events; project savings require duty-cycle analysis.

Which equipment can use the K3G280-RR03-H4?

It is listed for Motor Cooling. Confirm voltage, duty point, dimensions and mounting against the equipment requirements before selection.

What performance data is available for the K3G280-RR03-H4?

The supplied table lists 2,550 rpm; use the exact datasheet for the complete operating curve.

What compliance information is supplied for the K3G280-RR03-H4?

The workbook marks the product RoHS Compliant. Obtain the exact-model declaration and any project-specific approvals required by the destination market.

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K3G280-RR04-H9(1PH8912-1BC80-2AA0) is a 230 VAC centrifugal fan for electronic equipment, heat pumps, equipment cooling. Its main supplied feature is 520 W input power for the listed electrical version. It also lists a 280 mm size specified in the upload data. Review ventilation duty for ductwork design.

K3G310-PH38-32 | ebm-papst 3~380-480VAC 1800W 310mm EC Centrifugal Fan for HVAC systems

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K3G280-RR03-H4 ebm-papst Centrifugal Fan

Product Features

Product Features

Reliable Blower

Application Industry

Motor Cooling

Product Insights

AC to EC Replacement — K3G Compact EC Centrifugal

K3G Series Comparison — K3G280-RR03-H4 vs Variants

Typical Applications — K3G280-RR03-H4 Compact EC Centrifugal

Frequently Asked Questions

Can the K3G280-RR03-H4 help control total ownership cost?

Which equipment can use the K3G280-RR03-H4?

What performance data is available for the K3G280-RR03-H4?

What compliance information is supplied for the K3G280-RR03-H4?

Related Products

K3G280-RR04-H9(1PH8912-1BC80-2AA0) | ebm-papst 230VAC 520W EC Centrifugal Fan for HVAC systems

K3G310-PH38-32 | ebm-papst 3~380-480VAC 1800W 310mm EC Centrifugal Fan for HVAC systems

K3G133-RA01-03 | ebm-papst 230VAC 27W EC Centrifugal Fan for air handling and HVAC systems

K3G250-AI27-05 | ebm-papst 220-240VAC 165W EC Centrifugal Fan for air handling and HVAC systems

K3G560-HE07-01 | ebm-papst 3~380-480VAC 12000W 560mm EC Centrifugal Fan for HVAC systems

K3G400-HB41-01 | ebm-papst 3~380-480VAC 6000W 400mm EC Centrifugal Fan for HVAC systems

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