I have just finished swapping over 15 halogen downlights for dimmable led alternatives, they are in a living room, the 15 lights have been separated into three circuits, each with five downights on, and each controlled by a dimmer switch, one of the circuits works fine, but the other two stay on for around two or three seconds, then trip the breaker, one even took out the dimmer switch, Thinking it was the dimmer, I then swapped this for a varilight led compatible dimmer, think it was 400w more than capable of running 5 led's, again this switch did the same, the lights stay on for three seconds, then breaker trips, could of sworn I heard a buzzing from one of the led's before it tripped, all wiring was swapped over exactly as is was when the halogens were in, anybody come across this before or likely causes.
Cheers
Gaz
Cheers
Gaz