How do I calculate Cooling Capacity for Electrical Panels?

To calculate Cooling Capacity for Electrical Panels: Enter Total power losses in panel, Enclosure surface area, Ambient temperature outside and other values. Click Calculate. INDUGRID computes the result instantly using the formula: P_cooling = P_losses − P_natural_dissipation where P_nat = k × A × ΔT. No registration required.

What units does the Cooling Capacity for Electrical Panels calculator use?

The Cooling Capacity for Electrical Panels calculator uses the following units: W, m², °C. SI units are used by default.

Thermodynamics

Cooling Capacity for Electrical Panels

Calculate the required cooling capacity for an electrical control panel or enclosure, following IEC/TR 61439-0 methodology.

Units:

in LinkedIn

💡Standard air conditioners are rated at specific conditions. At higher ambient temperatures, cooling capacity decreases. Always add 20% margin. Preferred ambient temperature inside panels per IEC 60439: maximum 35°C to protect components.

P_cooling = P_losses − P_natural_dissipation where P_nat = k × A × ΔT

Input

Total power losses in panel iSum of all heat-generating components inside the panel: drives, transformers, contactors, relays, etc.

Enclosure surface area iTotal external surface area of the enclosure (top + sides + front + back) in m².

m²

Ambient temperature outside iMaximum ambient temperature outside the enclosure in °C.

°C

Target internal temperature iMaximum acceptable temperature inside the enclosure in °C. IEC 60439: typically 35–40°C.

°C

Enclosure IP rating iIP rating affects natural convection cooling factor k.

Result

Natural dissipation P_nat [W] —

Required cooling capacity [W] —

Required cooling capacity [kW] —

Recommendation —