SE Ratings for Equipment

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360Youth

Senior Member
Location
Newport, NC
We are quoting a generator and MTS for existing business with 600 amp service. CT cabinet and 600 amp MDP are installed back to back. Will the MTS need to be SE rated? I have had differeing opinions over the years but am unable to find NEC reference. Thanks.
 

augie47

Moderator
Staff member
Location
Tennessee
Occupation
State Electrical Inspector (Retired)
I agree with Volta. Your Code reference is basically 230.82. ATS & MTS units are not among the items listed as permissible.
In my experience most MTS are service rated.
 
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