Free Engineering Tool

Electrical Enclosure Cooling Airflow Calculator

Enter the heat released inside the cabinet, the worst-case ambient temperature and the maximum allowable internal temperature. This electrical enclosure cooling airflow calculator returns the required ventilation duty in m³/h and CFM. If you add a design margin, the result identifies it separately.

Calculate required enclosure airflow

Project inputs
°C
°C
The calculator does not add a hidden safety factor. Any selected margin is shown separately in the result.
Preliminary result
Your result will appear here. Enter the highest expected ambient temperature and the cabinet's maximum allowable internal temperature.
Preliminary estimate: this result does not model filter loading, pressure loss, altitude, cabinet leakage, the actual system resistance curve or enclosure/IP/NEMA certification. Confirm the airflow path and final fan choice before ordering.

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