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How do you calculate the size of the enclosure required for the ATS48’s to dissipate the heat generated

To calculate the size of the enclosure required for an ATS48 soft start you would use the follow equations

To calculate the figure P use the power dissipated figures from the below tables and add it to the power
dissipated figures of all the other equipment to be housed in the enclosure

For Standard Applications For Severe Applications

You then insert the number calculated for Rth into the calculation below; the Effective exchange
surfaces are those that do not make contact with any other object i.e. floor or wall

It is always advisable to fit a bypass contactor with the ATS48 Soft Starter to

reduce the heat generated

The last two items show the recommended spacing’s around the soft starters and the flow rate of the
fans if fitted into the cabinet.

ATS48 recommended panel mount spacings ATS48 cooling fan flow rates