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Topic Title: Surge protector AND RCD breaker
Topic Summary: Can you plug in a surge protector in to an RCD breaker?
Created On: 11 January 2015 11:49 PM
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 11 January 2015 11:49 PM
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waqasahmed939

Posts: 3
Joined: 11 January 2015

Basically as the above. Im looking to get a device this:

Link Removed

And I was also looking at these two:

Link Removed

Link Removed

Would it be safe, if I plugged the extension lead in to a surge protector, and then in to an RCD breaker?

Any help/advice would be appreciated
 12 January 2015 12:12 AM
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DOUGIE1000

Posts: 4243
Joined: 13 August 2005

Surge protector should have no effect on any rcd. Hope that helps

-------------------------
Dougie
Power Plus Electrical.co.uk

My mission is to live as long as possible......so far so good!
 12 January 2015 12:20 AM
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waqasahmed939

Posts: 3
Joined: 11 January 2015

Originally posted by: DOUGIE1000

Surge protector should have no effect on any rcd. Hope that helps


Wooh! That does, yes! Very much so! It means I can have both things (If a little bulky )
 12 January 2015 08:26 AM
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mapj1

Posts: 9348
Joined: 22 July 2004

There are some designs of mains filter that may introduce some earth leakage, as they have capacitance between L and E, but if all is well, only a few milli-amps. If the RCD trips, then something else is bringing it much too close to the limit for comfort already, so needs investigation.

-------------------------
regards Mike
 12 January 2015 09:13 AM
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broadgage

Posts: 2380
Joined: 07 August 2007

In general, yes a surge protector may be supplied from an RCD, however most types of surge protector introduce a little earth leakage.
This should be well below the trip threshold and of no consequence in most cases for one or two surge protectors.
I would however avoid large numbers of surge protectors on the same RCD in say an office, especially as the use of surge protectors implies IT equipment that introduces its own earth leakage.

In the event of a spike or surge on the mains supply, many types of surge protector divert or shunt the over voltage to earth, this could well trip the RCD, it could be argued that this is not a fault but is the surge protector and the RCD working as intended.
 12 January 2015 11:20 AM
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waqasahmed939

Posts: 3
Joined: 11 January 2015

THINK I got that. Not an engineer. More a ...techy..

Didn't quite get the "L and E" thing, but I sorta got that there might be SOME Earth leakeage from the surge protector itself, which may cause the RCD to trip, if it exceeds the amount specified ie: 30/40mA normally

The forum removed links (I'm guessing because Im a new member, and it's a way to stop spam???)

The things I was looking to buy from Amazon were:

Masterplug EXS1342O 2m 4-Gang Permaplug Heavy Duty Extension Lead - Orange
Masterplug SRGAUSBPB-MP Surge Protected Mains USB Charger
Draper 69307 13 amp RCD Safety Adaptor
 12 January 2015 01:14 PM
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broadgage

Posts: 2380
Joined: 07 August 2007

Yes, the surge protector Does introduce a little earth leakage, but unlikely to be enough to matter in most cases.

The products that you propose should be fine, subject to the usual caveats about proper use, keeping dry etc.

This forum does indeed remove links as an anti spam feature.
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