OCPD for surge protection......struggling to find answers

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leerhinson

leerhinson

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Location
Florida
Occupation
Facilities manager/25 Year Industrial Electrical Technician
Help please,I have a 3 phase 120/208 3 phase panel,Im going to install the Ditek d50, I cant seem to find a proper ocpd size to keep from directly connecting to the main breaker/disconnect,any help is much appreciated.
 
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