1 103 New member Jan 17, 2008 #1 I have a 3 phase 480 volt x former,30 kva .120/208 secondary.Do i size the overcurrent protection at 125%
I have a 3 phase 480 volt x former,30 kva .120/208 secondary.Do i size the overcurrent protection at 125%
don_resqcapt19 Moderator Staff member Location Illinois Occupation retired electrician Jan 17, 2008 #2 See 450.3 and 240.21(C).
