8312/12HL-118 ebmpapst 12V 0.33A 4W 80mm DC Axial Fan

Description

The ebmpapst 8312/12HL-118 is a high-performance 80mm DC Axial Fan featuring a 5-blade impeller and a high-efficiency Brushless DC Motor (BLDC). This unit employs an electronically commutated external rotor motor with drive electronics completely integrated into the fan hub. Operating at a nominal 12 VDC (range 6-15 VDC), it delivers a rated speed of 4200 RPM with a refined power consumption of 4 W and a current draw of 0.33 A. The fan is designed with a 32 mm deep housing made of PBTP and a PA 6.6 impeller, ensuring high static pressure for dense cooling applications. It is equipped with advanced safety features, including PTC resistor-based locking protection and a TTL logic square wave sensor for real-time speed monitoring. With its extremely low EMI and wide operating temperature range up to 75 °C, the 8312/12HL-118 is a reliable thermal management solution for mission-critical industrial and telecommunications infrastructure.

8312/12HL-118 Fan Parameters
Manufacturer: ebmpapst
Model Number: 8312/12HL-118
Motor Design: Brushless DC Motor
Type: DC Axial Fan
Nominal Voltage: 12 VDC
Voltage Range: 6-15 VDC
Dimensions: 80 x 80 x 32 mm
Impeller Size: 80 mm
Number of Blades: 5
Mass: 0.170 kg

[Electrical Data]
Nominal Speed: 4200 RPM
Power Consumption: 4 W
Current Consumption: 0.33 A (330 mA)
Termination: 3 Leads (AWG 22, length 460mm +/- 10mm)
Motor Bearing: Ball bearing
Sensor Signal: TTL logic square wave (2 pulses per revolution)

[Performance & Acoustics]
Max. Flow Rate: 67 m³/h (39 CFM)
Noise (Free Air): 43 dB(A)
Noise (Optimum Operating Range): 5.8 Bels
EMI Level: Extremely low

[Materials & Construction]
Housing Material: PBTP (Glass-fiber reinforced)
Impeller Material: PA 6.6 (Glass-fiber reinforced)
Airflow Direction: Exhaust over struts
Direction of Rotation: Clockwise, viewed toward rotor
Drive System: Electronically commutated external rotor motor

[Reliability & Protection]
Service Life (L10 at 40 °C): 62500 h
Service Life (L10 at 75 °C): 27500 h
Permanent Ambient Temperature: -20 … +75 °C
Locking Protection: PTC resistor protected (restarting after approx. 15s)
Reverse Polarity Protection: Electronic; starts only with correct polarity
Approval: UL, CSA, VDE

Application
The ebmpapst 8312/12HL-118 5-blade brushless DC fan is specifically engineered for high-reliability cooling in precision electronic systems. Its high-efficiency BLDC motor and 32mm deep frame provide the necessary torque to maintain consistent airflow in high-impedance environments such as industrial power conversion modules and professional audio amplifiers. The integrated TTL speed sensor allows for precise thermal feedback loops, which is essential for 24/7 server monitoring and automated industrial control cabinets. Designed to operate safely at temperatures up to 75 °C with minimal electromagnetic interference, this fan is a primary choice for medical laboratory equipment and telecommunications base stations where stability and low EMI are mission-critical.