[timpattinson]

415 volts on a 30A breaker, like you might find in an undergraduate electrical engineering lab, is very lethal. I'd hazard a guess that's what the OP is talking about.

[BenjiWiebe]

415 volts on a 5A breaker is equally lethal, and not high-current.

1,000 Amps and 5 volts is dangerous (sort of), but not in an electrocution sense.