Kettle trips shore RCD

[mross]

Our brand new kettle, from ASDA and a Which? Best Buy, trips the shore breaker. But not when it is turned on; it trips when the kettle switches off. We have a 16A supply. It is the common breaker for two boats that trips. At 240V it is rated 3,000W.

[Paul C]

Take it back to the shop as faulty.

 

 

ETA: the answer above is based on tripping an RCD, not an RCBO.

Edited September 13, 2016 by Paul C

[mross]

Any suggestions for one that won't trip the RCD? I don't think it's a fault, just badly designed. However I am going to return it.

[Dave Payne]

Bonavita, they rock!

 

http://www.coffeetastingclub.com/bonavita-1l-gooseneck-kettle?gclid=Cj0KEQjwx96-BRDyzY3GqcqZgcgBEiQANHd-nlAOOvZq-iZT4NNgKYIYK5tbaBeK-50jLYHzebxplk4aAtVQ8P8HAQ

[WotEver]

I'd suggest a 2kW model if you can find one but obviously this one (perhaps common with that range or make) has a 'dirty' disconnect, so almost any other make is worth trying.

 

Tony

[Paul C]

No electrical device should trip an RCD.

[Alan de Enfield]

I was under the impression that the EU had forbidden any electrical appliances (kettles, hoovers etc) that were above 1600w ?.

 

Having done a search - yes - it was announced in 2014 after the 'Hoover Ban' and draft legislation issued but it is not yet passed

 

A study ordered by the European Commission, currently in draft form, has identified up to 30 electrical appliances including lawn mowers, smart phones and kettles that could be covered by the EU's Ecodesign directive outlawing high-wattage devices.

[WotEver]

No electrical device should trip an RCD.

I doubt that it is. I suspect it's tripping either an MCB or an RCBO.

 

As for Which? Best Buys - not worth the paper they're written on, these days.

[mross]

This what tripped.

[Paul C]

This what tripped.IMG_20160913_153522883_HDR.jpg

 

....which is an RCBO, NOT an RCD as stated in the title.

I'd suggest a 2kW model if you can find one but obviously this one (perhaps common with that range or make) has a 'dirty' disconnect, so almost any other make is worth trying.

 

Tony

 

As above, now its been shown its (probably) tripping on overcurrent.

[mross]

You are correct. Does that help you to offer me any advice? ☺

[Paul C]

Well.......you could try a lower power kettle but given you're sharing 16A with a neighbour, it could still trip - it depends on the devices you and your neighbour are running at the time. Dare I suggest......don't throw away your hob-top kettle quite yet.....

[Keeping Up]

If it was tripping because of over current I would have expected that to happen at switch on rather than switch off.

[Tiggs]

It appears to be quite common that these things trip on switch off of some device or other - more often with high power and inductive equipment. It is apparently due to the spikes caused by the switch.

[mross]

On closer examination there are two RCBOs, one for each boat. I agree that it is the RCD part which is tripping. (An RCBO is an RCD plus MCB for O/L protection).

[mross]

No electrical device should trip an RCD.

A faulty device should trip an RCD or an RCBO ! ☺??

[WotEver]

You are correct. Does that help you to offer me any advice? ☺

See post #5

[dogless]

Funny, our Le Creuset whistling kettle doesn't do that. Mind you it is a stove top one

 

Sorry but couldn't resist.

 

Rog

[OldGoat]

RCDs don't like transients (nasty jagged shaped sparky thingies). Subject to anyone who has resolved this - but some surge protection device might help.

[ditchcrawler]

RCDs don't like transients (nasty jagged shaped sparky thingies). Subject to anyone who has resolved this - but some surge protection device might help.

So why doesn't my RCD trip when I turn my Kettle, Toaster.Microwave or cooker on at home, not forgetting the washing machine and tumble dryer, non are fitted with surge suppressors.

[ditchcrawler]

Any suggestions for one that won't trip the RCD? I don't think it's a fault, just badly designed. However I am going to return it.

If it trips the RCD on your boat supply then it should also trip the RCD in a house, it could be faulty, some new items are.

[OldGoat]

ditchcrawler, on 13 Sept 2016 - 6:43 PM, said:

So why doesn't my RCD trip when I turn my Kettle, Toaster.Microwave or cooker on at home, not forgetting the washing machine and tumble dryer, non are fitted with surge suppressors.

 

As The Management says - "Because"....

It depend on the quality of the equipment etc etc I had no end of trouble with an early 30mA trip so put the offending kit on a board with an 100mA trip...

[wrigglefingers]

Moderator's note ....

 

I've merged two threads, so there may some oddities about the order of posts. I think the sense is clear though. Carry on posting ....

 

Wriggly xxxx

[Iain_S]

If it trips the RCD on your boat supply then it should also trip the RCD in a house, it could be faulty, some new items are.

 

If it's doing it because of spikes, the longer cable runs and greater number of circuits in a house will have more inductance, which could be enough to suppress the spikes.

[16csvt]

My two pennyworth.

 

The auto off mechanisms seem to rely on ducting a sniff of the steam (as it comes to the boil) down the inside of the handle and using the heat to operate a bi-metal do-dah to flick the switch off.

Is it perhaps possible that there is some damp getting between the live parts of the electric switch (which I would expect to be in close proximity to the switch lever) and an earthed point (the body)?

It is also technically possible that a similar conductive path from the neutral to the body could be causing the nuisance trips.

 

Is it worth generating load spikes by manually clicking it on and off a few times (prior to boiling) to see if it trips in the absence of any damp / drips?

 

Regards to all

 

16csvt