30Ma S Type Rcd

[Sidewinder]

Anyone know of a supplier?...

Long story, can be an "ordinary" response characteristic, i.e. Type A IIRC?

 

[steptoe]

if you find one let me know,

I tried in vain to find one a few years ago, looked for months,

just gave up in the end and explained it would be pot luck what went first,

nothing else i could think of practical really.

EDIT,

as to what I actually done,

timed a whole load of RCDs and picked the slowest one and the fastest one,

probably of absolutely no use to you whatsoever though. 

:C

 

[Sidewinder]

Seen that suggested elsewhere!

I don't think they exist, as I don't think that the requirement for a 30mA is met by a TD, S type unit?

 

[batty]

 quick search.

http://www.protekuk.co.uk/rcd-data-sheet.pdf

 

[NozSpark]

How about these by MK??

MK5740S

MK5760S

Both available through RS

 

[Sidewinder]

batty,

Not sure about Protek kit TBH!

However, it does seem they do them.

Do they do a full range of boards & breakers etc. also?

Remembering that the clients I have, have strict specs, so I would need to get the kit "passed" by them.

Noz,

Thanks, I could not find these on the MK site!

Canoe,

I must confess I have a mare with anything on the Siemens site, I find it so hard to negotiate, but, it was the add on type that I thought would be the most likely after the Schneider..

I went for the Schnieder "vigi" first, but could not find a 30mA S type.

 

[batty]

Not sure never used protek think its CEF stuff. I know MK don't do them they are 100mA TD. Really don't think there is a lot of call for them.

 

[Sidewinder]

batty,

I "thought" that Protek was CEF, until I checked your link, and did some checks it seems "Proteus" is CEF, "Protek" is not is seems.

Also my preferred wholesaler is a to order distributor, which is OK.

Thanks.

 

[steptoe]

sidey, Im fairly certain i have some protek MCBs I could send you to evaluate,

i dont think you will give them many stars though,,,,,,,

 

[soulman]

I was always under the impression that you could not get a 30ma s type rcd.  As 30ma is for shock protection so there should be no delay.  I remember asking about this at college & that is what i was told.

 

[Sidewinder]

Mcb would be 63A 10kA Canoe

Soulman, that is one of my concerns also in looking into this situation.

 

[M107]

I see a market for SBS.

 

[NozSpark]

Mcb would be 63A 10kA Canoe

Soulman, that is one of my concerns also in looking into this situation.

RS have stock.... apparently

 

[OnOff]

batty,

Not sure about Protek kit TBH!

However, it does seem they do them.

Do they do a full range of boards & breakers etc. also?

Remembering that the clients I have, have strict specs, so I would need to get the kit "passed" by them.

Noz,

Thanks, I could not find these on the MK site!

Canoe,

I must confess I have a mare with anything on the Siemens site, I find it so hard to negotiate, but, it was the add on type that I thought would be the most likely after the Schneider..

I went for the Schnieder "vigi" first, but could not find a 30mA S type.

Seems it's a big NO from Merlin technical on this with this, I'm guessing, simplistic comment, I asked my Schneider supplier and this came back:

"Time delay and 30ma is not allowed under reg’s, as it’s for protection of personal and must be instantaneous"

Out of interest under what circumstances would you use it?

Cheers

 

[OnOff]

Siemens do them - Have asked for a price on a 2P and 3P unit

They do not do an S type as these are only 100,300mA etc as per above posts

They do a Super Selective K (30mA) type which is a time delayed (in essence exactly the same as an S type) and has a 10mS delay - ignore any faults on switch on

They are a Type A and I have used them in the past for 30mA protection of inverters where there is an EMC filter (they aint cheap though  :innocent )

Sounds similar then to the Merlin/Schneider Multi 9 "si" type? I use these for exactly the same issue i.e. on inverters:

http://www.schneider-electric.com/products/ww/en/1600-din-rail-modular-devices/1655-multi-9-modular-devices/906-id-rccb/

They do selective versions too as in the one will trip nearest to the fault.

 

[Steve3948]

I was also told they are not for sale within the UK for reasons stated above regarding 30mA.

 

[OnOff]

My supplier just got back with a quote on these Merlin "SI" RCDs:

100A, 2P, 30mA - £115-00 each +VAT,

100A, 4P, 30mA - £196-00 each +VAT,

Plus a tenner carriage and 15 working days as from France I think.

I was thinking, "How much?" and "....."...........has he forgotten my discount?" (still to double check on that) but just looked back on old invoices and I paid £77.11+VAT ea for two 40A, 4P, 30mA ones in 2004 then £82.60+VAT for a single, the same in 2005.

Don't use them often but they have saved loads of grief when I had inverter issues.

Cheers

 

[OnOff]

Im not familiar with Schneider but are you sure the SI range is a time delayed ? 

No, I don't believe it is time delay per se. Think it is selective in that it "ignores" transients etc. I used them to guard against inverters being a bit leaky by nature on startup. I was posting up on the back of your post #17 where you mentioned using selective units with inverters if I read that right? Not 100% sure what the OP wants the RCD for tbh but wondered if the SI would assist. Cheers.

 

[apprentice87]

Hi Paul,

Would these help??

http://www05.abb.com/global/scot/scot209.nsf/veritydisplay/7115a45a1e2da408c1256cbc0054f193/$file/2csc421002b0201.pdf

They are a 30mA rcd, but with [amongst other things] a slight delay built in. They still trip fast enough to be used for shock protection, but are rather more trip resistant than normal ones..

john..

 

[apprentice87]

It is the ones on the second page you want, the "AP" range..