For a transformer over 1000 V or with primary-only protection under 450.3(B), where primary current is 9 A or more, the primary OCPD generally may not exceed what percentage of primary full-load current?

Giải thích

Table 450.3(B) permits primary-only protection at not more than 125% of rated primary current when that current is 9 A or more. 167%/250%/300% apply to higher-current or combined primary-and-secondary arrangements, not the basic 125% primary-only case.