- Reaction score
- 5,316
They do, but I have only ever known them be made to order by specialist protection companies. I can't imagine them ever being used in anything other than a specialist installation, they aren't exactly cheap!
Yes indeed. I've had a quick search and such beasts can be ordered but surely putting these into a domestic situation for final circuits would mean that the tripping times required of 300mS @ 30mA and 40mS @ 150mA are not met.