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How do you size thermal units?

Issue:
How do you select the proper thermal units?

Product Line:
NEMA Contactors and Starters

Environment:
Thermal Units

Resolution:
Thermal units can be selected based on information provided in Digest 178. Thermal unit selection charts are also provided with all devices that require the selection of thermal units.
Please see the attached document.

For easier selection, please refer to the EZ Selector with this link:
https://ezlist.schneider-electric.com/