Power failure not tripping an RCBO

[Nakajo]

This question relates to a brand new installation. Power went off to a washing machine and dryer without tripping the associated RCBO. Power restored by resetting RCBO. Should this be a cause for concern?

 

[EFLImpudence]

Sounds like it did trip RCBO if you had to reset it.

 

[ban-all-sheds]

Power went off to a washing machine and dryer without tripping the associated RCBO. Power restored by resetting RCBO.

 

[securespark]

Yeah. If you had to reset it, it must have tripped.

 

[PBC_1966]

Perhaps what is meant is that the power went off without any sign of the RCBO having tripped, but that turning the breaker off and on again restored power? If that's the case, then perhaps faulty contacts in the RCBO, or a loose connection disturbed by the slight movement when it was operated.

 

[Jackrae]

Don't some styles of RCBO have a "tripped" position which is not the same as the "Off" position and need to be pushed to the "Off" position as part of the reset sequence.

 

[securespark]

Not sure about RCBO's but that is certainly true of MEM A100HE RCD's (and maybe others, too).

 

[Jackrae]

Sounds like you have a problem with your washing machine and/or drier

 

[ericmark]

I seem to remember all MCB, and RCBO, and RCD are designed so you can't physically hold them on. Dirt may stop lever moving but will not stop it tripping.

 

[Spark123]

Some MK RCCBs trip half way and have to be turned off before being turned back on.
As ericmark says, you can't physically hold them on - if you reset them under fault condition the outcome wouldn't be good if they did!

This question relates to a brand new installation. Power went off to a washing machine and dryer without tripping the associated RCBO. Power restored by resetting RCBO. Should this be a cause for concern?

What make of consumer unit?

 

[Nakajo]

The RCBO is a Wylex nhxsbs1b06, and the Consumer Unit is also Wylex (well, it has a Wylex sticker on it):

http://www.gil-lec.co.uk/wylex-nhxsbs1b06-rcbo-single-pole-type-b-6a-6ka-30ma

 

[Echo the husky]

Power went off to a washing machine and dryer

The RCBO is a Wylex nhxsbs1b06

You have a 6 amp RCBO feeding a washing machine and dryer?? No wonder it tripped!!

 

[ban-all-sheds]

It didn't trip:

Power went off to a washing machine and dryer without tripping the associated RCBO.

 

[Nakajo]

You have a 6 amp RCBO feeding a washing machine and dryer?? No wonder it tripped!!

Sorry - it's '32' !!

 

[ban-all-sheds]

You'll be telling us next that it did trip.