High quality MAINS fuses?

[vkennedy61]

Best circuit breaker?

I asked my electrician what kind of conducting material is used in his breakers and he needed to find out. I read somewhere that silver tungsten is the best material. So… for those of you who have upgraded your circuits or breakers – what’s the best? Did you find one that improved your sound? Here’s a list of interchangeable brands of UL Classified breakers – Cutler-Hammer, Square D, Crouse-Hinds, General Electric, Siemens, Murray, Thomas & Betts.