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Low voltage selectivity with ABB circuit-breakers
library.e.abb.com80 100 125 80 100 5 5* 5 250 160 200 250 320 320 250 320 160 250 320 11 8 8* 11 8 T T 12 T T T T T T 12 T 12 T T T T N,S H,L,V T4 I cu [kA] 15 ... non-tripping of the supply-side circuit-breaker is not guaranteed. ... zone By “short-circuit zone” one means the ranges of current values, and therefore the relative part of the trip curves of ...