Delta 120mm 12V DC Cooling Fan PFC1212DE - 252.85CFM High Airflow with PWM Speed Control

This Delta PFC1212DE is a purpose-built 120mm fan designed to deliver high-volume airflow in rack servers, network cabinets, industrial enclosures, and other heat-dense applications. With a maximum air volume of 252.85CFM and static pressure of 1.412 in H2O, it pushes air effectively through filters, heatsinks, and confined chassis. The 12V DC motor supports motherboard PWM speed regulation, letting you balance cooling performance with noise output. The fan frame and blades are constructed from PBT glass fibre-reinforced material with VO-grade flame retardancy, offering increased safety in sensitive electronic environments.

Features and Construction

The Delta PFC1212DE combines high-output aerodynamics with robust mechanical design to maintain consistent cooling under continuous load.

Material and Build

The frame and impeller are moulded from PBT (polybutylene terephthalate) with 30% glass fibre content and VO-class flame retardant. This construction provides strength at high rotational speeds and reduces the risk of fire propagation in equipment. The one-shot injection moulded fan frame ensures dimensional accuracy and balance, contributing to stable operation at the fan’s rated 5500 RPM.

Size and Practical Fit

Standard 120mm square footprint with 38mm depth fits common server chassis, switch enclosures, and cabinet panels. The 35cm 4-pin PWM cable provides enough reach for most motherboard header placements. The fan rotates counterclockwise when viewed from the blade side, important for correct airflow direction in push or pull configurations.

Uses and Placement

This fan is suited for continuous-duty applications where consistent forced air cooling is required to maintain equipment reliability within a -10°C to +70°C operating range.

Server Rack and Industrial Use

In rack-mounted servers, UPS units, and telecom enclosures, the fan’s 252.85CFM throughput and 1.412 in H2O static pressure help overcome the backpressure of dense component layouts and fine mesh grilles. The PWM interface allows the host motherboard to automatically ramp speed based on thermal load, minimising noise during low-demand periods.

Everyday Home Use

While designed for high-performance environments, the fan can also be used in DIY electronics projects, home server builds, or workstation cooling. The 12V DC input is compatible with standard computer power supplies. Note that the fan produces 66.5 dB(A) at full speed, so sound levels should be considered for living spaces.

Benefits and Buying Value

Choosing this Delta fan brings measurable advantages in longevity, thermal control, and safety compliance for equipment builders and maintenance engineers.

Reuse and Low Maintenance

High-precision dual ball bearings give an expected service life of 80,000 hours at 25°C ambient, reducing the frequency of fan replacement in continuously running equipment. The sealed bearing construction tolerates a wider temperature range and resists dust ingress better than sleeve bearing alternatives.

Why Choose This Product

The combination of 252.85CFM airflow, 5500RPM maximum speed, and PWM control makes this fan a practical choice for applications needing both high cooling capacity and flexible speed management. The VO-grade flame retardant frame and blades add a layer of safety in fault conditions, while the standard 120mm size ensures broad compatibility.