"Customer had a full re-wire and new Wylex CU in 2001. Random nuisance tripping of the RCD for about 3 weeks.. Unplugged the usual suspects(heating appliances,surge protectors,fridges,freezers etc). Resistance tests were fine on all circuits at 500v. RCD still tripping so suspected it had become over-sensitive as they can occasionally when they get old(usually 10 years+). Replaced it and no trouble since :-) Happy customer!"
"Always use wylex for left hand entry, never have problems. Beware of reviews, fitting this PRIOR to an existing fuse box does not comply with BS7671 - no discrimination. Do not contact the DNO for fitting isolator, contact the supply company - british gas, EON, whoever the customer pays the bill to. They are required to either pull the fuse and then return OR fit isolator which is everyones preference. I never change CU's live, nor work on live tails it is not necessary not to mention dangerous and breaks Health and Safety big style."
"R.c.d. I Put this on incoming feed from meter to old type Wylex box up date to plug in m.c.b.s saves having to replace with new consumer unit If your not doing a new rewire switches off all circuits if there is earth leakage fault also use as isolating switch to work safely on consumer unit The supply company's will not in this area fit an isolating switch you have to withdraw their fuse does not make sense because they fit seals which are not supposed to be broken but they expect you to work on a live box when you need to update to new consumer unit ? Why don't they fit 100amp isolating switch for safety perhaps to expensive not making enough profit should be in the IEEE regs"
"Replaced a no-longer-made GE 304/28031-801 as a straight swap into the consumer board.
Worked as it should out of the box, and seems better made than the GE that it replaced. Note that the wiring inlet/outlet has a tiny flat plate which is loose, that you need to take care is at the bottom/back of the hole before poking in the wires. The wires fit between this flat plate and the moving one that screws down onto the wire. Be careful the wire doesn't go behind that flat plate!
Very glad Screwfix is open on a Sunday, as the old GE decided not to play anymore on Saturday night."