Formula and Inputs
Required cooling capacity is estimated from internal heat dissipation, ambient temperature, target enclosure temperature, and enclosure conditions.
VoltCheck24 Engineering Calculator
Control Panel Cooling and Enclosure Heat Load Calculator
Calculate control cabinet heat load and select filter fans, air conditioners, or cooling capacity for industrial enclosures.
How to use this calculator
- Collect the values below from the equipment nameplate, data sheet, or field measurement.
- Enter values using one consistent unit system and use worst-case operating conditions.
- Review the result, margin, and engineering note before selecting hardware.
- Cross-check the result with the related calculator and save the review for your project record.
Input checklist
- Panel dimensions and enclosure type
- Internal electrical losses
- Maximum ambient temperature
- Target internal temperature
Industrial Use Cases
Use this calculator for PLC panels, inverter cabinets, servo cabinets, battery equipment, and sealed industrial control boxes.
Engineering Note
Include losses from power supplies, drives, contactors, transformers, and external heat transfer. Check dust, oil mist, IP rating, and altitude derating.
FAQ
When should I use a panel air conditioner?
Use an air conditioner when ambient temperature approaches or exceeds the target internal temperature, or when the enclosure must remain sealed.
Should I calculate heat from motor output power?
Use the electrical losses that become heat inside the enclosure, not the full mechanical output power.
Preliminary engineering reference only. Confirm final selections against current standards, project specifications, and manufacturer data.