Panel heat-loss total
Only losses dissipated inside the enclosure contribute to the entered thermal load.
Pheat = Fsim × Σ(Pcomponent)where:
- Pheat
- Simultaneous internal heat load[W]
- Fsim
- Simultaneous heat factor
- Pcomponent
- Individual component power loss[W]
Use manufacturer watt-loss data at the expected operating point.
How to use the Panel Component Heat Loss Calculator
Add breaker, contactor, drive, power-supply, transformer, and miscellaneous losses to estimate total cabinet heat load. Start by choosing the operating mode, then enter values from nameplates, measurements, or project documents in the units shown. The result updates immediately and keeps intermediate quantities visible for review.
- Confirm the system and calculation mode.
- Enter measured or manufacturer-rated values.
- Review the primary result and intermediate metrics.
- Continue with the related protection or equipment-selection checks.
Calculation method and validation
The equations and symbol definitions above show the complete calculation basis. Inputs are checked before calculation so zero, negative, incompatible, or physically impossible combinations are flagged instead of silently producing a misleading result.
How to interpret the result
Use the main result as a starting value and read every supporting metric. Entered values are losses dissipated inside the enclosure The simultaneous factor applies to all entered groups A passing or recommended result means the entered mathematical conditions are satisfied; it does not certify the complete installation or a particular product combination.
- Entered values are losses dissipated inside the enclosure
- The simultaneous factor applies to all entered groups
Selection limits and next checks
Use manufacturer watt-loss data at the actual load, coil voltage, switching frequency, and operating state. Compare the output with the current applicable standard, local rules, exact VIOX product datasheet, environmental conditions, protection coordination, and the engineer's project requirements before procurement or installation.
Continue with enclosure temperature rise calculatorContinue with terminal heating calculatorContinue with energy cost calculator
Assumptions
- Entered values are losses dissipated inside the enclosure
- The simultaneous factor applies to all entered groups
Important Warnings
- Use manufacturer watt-loss data at the actual load, coil voltage, switching frequency, and operating state.