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power fed light switch Hager rcbo won’t trip

Discuss power fed light switch Hager rcbo won’t trip in the UK Electrical Forum area at ElectriciansForums.net

Just a thought, I worked for a long time as a spark and AV engineer in the entertainment industry and some of the dimmers for LED stage lighting in that sector that I came across had fully isolated outputs. I haven't come across that in a domestic install personally though, but could it be????
 
depends what part of the cycle you are testing.
some dimmers are leading edge and some are trailing edge.
have you tried testing RCD on both positive and negative cycles?
most hager RCBO will trip within 1 cycle (20ms) regardless of testing at 0deg or 180deg.
 

Reply to power fed light switch Hager rcbo won’t trip in the UK Electrical Forum area at ElectriciansForums.net

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