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What is the permissible ambient operating temperature for Lexium SD328 drives?

The Lexium SD328 is rated for ambient temperature range of 0c - +40c per UL listing.
The drive may be operated in ambient conditions ranging from 0c - +50c if operated at reduced output current. 
Current reduction should be 2.2% for each degree above 40c

Rev 9-20-17
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