RL90-18/12N ebmpapst 12V DC 0.52A 6.3W Centrifugal Fan

Description

The ebmpapst RL90-18/12N is a high-performance DC centrifugal fan with a forward-curved impeller, engineered for high-pressure air delivery in demanding industrial and telecommunications environments. Operating on a nominal 12 VDC supply with a broad functional range of 7.0 – 15.0 VDC, this unit features a Brushless DC Motor that maintains a nominal speed of 2500 RPM. The fan is constructed with a 121 x 121 x 37 mm glass-fiber reinforced plastic scroll housing mounted on a robust sheet steel base, delivering 40 m³/h (23.5 CFM) of radial airflow. Designed for extreme reliability, the RL90-18/12N utilizes dual ball bearings and provides comprehensive electronic protection, ensuring a service life of 62500 h at 40 °C even in harsh conditions ranging from -30 °C to 75 °C.

RL90-18/12N Fan Parameters
Manufacturer: ebmpapst
Model Number: RL90-18/12N
Motor Design: Brushless DC Motor
Type: DC Centrifugal Fan
Nominal Voltage: 12 VDC
Nominal Voltage Range: 7.0 – 15.0 VDC
Dimensions: 121 x 121 x 37 mm
Impeller Size: 90 mm
Number of Blades: 20
Weight: 420 g

[Electrical Data]
Nominal Speed: 2500 RPM
Power Consumption: 6.3 W
Current Draw: 0.525 A
Termination: 2-wire (Leads AWG 22, TR 64)
Motor Protection: Reverse polarity, blocked-rotor, and overload protection
Insulation Class: E

[Performance & Acoustics]
Max. Air Flow: 40 m³/h (23.5 CFM)
Max. Static Pressure: 190 Pa (0.76 inAq)
Sound Power Level: 5.8 B
Direction of Rotation: Clockwise (looking at rotor)
Airflow Direction: Axial intake, radial discharge from outlet

[Materials & Construction]
Housing Material: Fiberglass-reinforced plastic scroll; Sheet steel base
Impeller Material: Fiberglass-reinforced plastic (Forward-curved)
Motor Bearing: Ball Bearings
Mounting: Multiple screw holes on scroll casing

[Reliability & Protection]
Degree of Protection: IP20
Min. Ambient Temperature: -30 °C
Max. Ambient Temperature: 75 °C
Service Life (L10): 62500 h at 40 °C (27500 h at 75 °C)
Standard Compliance: VDE, CSA, UL, CE

Application
The ebmpapst RL90-18/12N centrifugal fan is specifically designed for high-impedance electronic cooling applications where its 121 x 121 x 37 mm scroll housing and forward-curved impeller are required to deliver a critical 40 m³/h airflow through restricted air paths, while its sheet steel base and 6.3 W brushless motor ensure durable 12 VDC operation and reliable heat dissipation in mission-critical hardware environments from -30 °C to 75 °C.