ECN Forum Forums General Topics of the Trade Non-US Electrical Systems & Trades How long have you been using breakers

Peter, I remember using Crabtree C50 circuit breakers way back around 1965 I dont know the exact date that they were introduced.
After that seemed to come the Federal stablok breakers D type, these were installed in the thousands, in those days we had little or no regard for tripping charecteristics, you still see lots of these breakers today. Ok for short circuit protection but not very good for overcurrentprotection.