Table 450.3(b) maximum rating of overcurrent protection for Control grounding 120v tapped strategy Transformer 480 wiring protection overcurrent transformers 120 volts kva volt phase wire panel secondary single rating large building table less
Table 450.3(B) Maximum Rating of Overcurrent Protection for
Grounding for control transformers
Grounding for Control Transformers - Technical Articles
Table 450.3(B) Maximum Rating of Overcurrent Protection for