fuses with a push button reset

[pevvers]

Yeah, I think he's talking about the old 3871 MCB's which have the little circular button on the front with a smaller circular button below to trip the device. As far as I recall, they had a tendancy to not trip when they needed to due to the little circular switch getting stuck behind the housing, but I could be talking out of my bum!

I've seen the fuses you're talking about I think, but you can also get the Red Spot ones which show when it's blown...

Hi anybody tell me if old rewireable fuses and old bs3871's push button type and mcb's are all allowed within the same board (old wylex type)

I can't think of any reason why they wouldn't be. 3871's do not strictly meet the current regulations, but are not dangerous. 3036's are still up to current regs, and any 60898's are also okay.

I think I would still suggest that they have a new board though, but on that basis I wouldn't be giving an unsatisfactory on a PIR unless they had non RCD sockets that are likely to supply portable equipment outside....

 

[SirKit Breaker]

Tell your customer to let you fit plug in 60898's. I have come across lots of these bloody things that dont trip, the button gets cacked up with crap and they jam in, they may trip under fault conditions but wont when you try to mechanically trip them...not good! so i wouldnt chance it dangerous in my mind. But as someone else has said keep the working ones for fault finding.

Cheers.............Howard

 

[MWE]

hi given customer both options of replacing either full cu or with 60898's but the same old same old thats how MUCH!!!! Just looking through ESC PIR best practice guide 4 relating to the issue and noticed the picture of the same scenario pictured. quoting "observations based solely on personal preference or 'custom and practice' should not be included. Think this answers my question. regards mwe.

 

[pevvers]

the button gets cacked up with crap and they jam in

That was the term I was thinking of, cacked up with crap!