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Electrical enclosure heater calculator.
Choose from a wide range of capacities power inputs mounting options sizes and type ratings.
The graph can be read to determine expected temperature rise.
Saginaw control and engineering.
This calculator has a maximum temperature rise of 140 f or 78 c step 1.
You can use this calculator to find the wattage you need.
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The wattage of the heater you need is determined by the total surface area of your enclosure and the temperature rise you need to produce.
Rely on nvent hoffman s full portfolio of enclosure heater solutions to help maintain stable temperatures for your equipment.
Determine the heat generated inside the enclosure.
For heat transfer from the outside calculate the area exposed to the atmosphere except for the top of the control panel.
Find your enclosure s total surface area by entering its dimensions here.
To use this calculator appropriately one must first quantify the amount of heat generated by components inside.
For example if you know the power generated inside the unit assume 10 of the energy is dissipated as heat.
Approximations may be necessary.