Use 2ndary board with distance less than 50cm . Like this example:

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The function of a surge protection device is to prevent a sudden Surge of Voltage from damaging your electronics by providing a path of least resistance to ground.. a protection against lightning strikes to overhead electrical lines and or from bad earth rods (which picks from impact  zones and carries the voltage surges to your box) .

Only if this is the case then you can install it anywhere from your kwh meter cables to your distribution box.. A common practice is to install inside the DB but its not the only way to have it installed..

You can have it installed in its own enclosure after the kwh meter at any point before the DB (thus the equipment to be protected)... connect all phase/neutral cables to the SPD and connect SPD to a known good ground. (Ground rod reading below One Ohm)..

Seems many experts here, maybe I can get some insight from you guys.

My terrace house is ~30 years old, and it always trip at the slightest lightning strikes. Even when my neighbour right next door don't trip. How do I reduce this?

The house got this installed, and as you can see its very old, I assume its an ELCB. Would upgrading this to a RCCB help? Or would it become more sensitive over time (deteriorating components inside).

Thank you for your input. Guess if its not broken, don't fix it. Cause apart from being more sensitive, nothing else is wrong.

Thank you for your input. Guess if its not broken, don't fix it. Cause apart from being more sensitive, nothing else is wrong.

Seems many experts here, maybe I can get some insight from you guys.

My terrace house is ~30 years old, and it always trip at the slightest lightning strikes. Even when my neighbour right next door don't trip. How do I reduce this?

The house got this installed, and as you can see its very old, I assume its an ELCB. Would upgrading this to a RCCB help? Or would it become more sensitive over time (deteriorating components inside).

Get a good Surge protection device and install b4 the RCCB / in your case B4 ELCB,
I install the American Brand more than 2 yrs ago, has never trip since, best part is their long unlimited warranty of more than 15 years, 1 to 1 exchange, i think Sine Tamer.
unfortunately, i loss the no. of contractor who install for me.

Mine also installed with SPD (installed 2015-09-19). Ever since, Only one time there is quite heavy lightning strike as reported by my wife but RCCB didn't trip.

For electrician phone you can get from local shop which supply electrical part for contractor, not shop which selling electrical appliances. They do leave the business card number.

For SPD & auto RCCB I bought from L.V Control Technologies SB. 03-80112999. Mr. Alan Chua (alan@lvcontrol.com.my)

L.V.CONTROL TECHNOLOGIES SDN.BHD
No.3, Twin Park
Jalan Subang 7/1
Taman Perindustrian Subang USJ 1
47600 Subang Jaya

The function of a surge protection device is to prevent a sudden Surge of Voltage from damaging your electronics by providing a path of least resistance to ground.. a protection against lightning strikes to overhead electrical lines and or from bad earth rods (which picks from impact  zones and carries the voltage surges to your box) .

Only if this is the case then you can install it anywhere from your kwh meter cables to your distribution box.. A common practice is to install inside the DB but its not the only way to have it installed..

You can have it installed in its own enclosure after the kwh meter at any point before the DB (thus the equipment to be protected)... connect all phase/neutral cables to the SPD and connect SPD to a known good ground. (Ground rod reading below One Ohm)..

errr...
Surge protection and RCCB/ELCB are 2 different issue. 

RCCB/ELCB trip is good thing to have actually (except malfunction of RCCB/ELCB, due to aging etc), which just show that it is function properly to indicate there is a problem in the wire system or electrical appliances, which prompt user to rectify it.

Just would like to update, after replaced the Max Guard RCCB to Hager RCCB for two months, no more trip when there was heavy thunder storm & lightning

Omg I'm the TS and forgot to update mine lol.
We Replaced RCCB with similar specs but diff brand (hager) and no more thunderstorms trip since.

  look like replacing the old RCCB to a new Hager RCCB is the answer!

Not really, I replaced my old RCCB with Hager RCCB, it still trip, just lesser, now I have installed the ABB SPD, so far it is already 4 months and not a single trip.

hi guys,

i'm seeking advice on my upcoming DB replacement & SPD upgrade to more reliable Hager parts (for electric trip reduction).
Read most of the posts here and but i'm still not clear if it is okay to use RCCB 40A rate?

My current setup (not sure why 63A isolator is used by the developer):


thanks thanks

with respect to the guidelines set by ST..

- you should have another 30mA RCD strictly for the 13A 3 pin sockets (to be on a 20A mcb circuit)

- the 63A isolator is ok for 16mm2 intercabling but a 40A is preferable to use 10mm2 cables.. Its easier to install..

Why are you thinking to install an SPD?

another or replace current 100mA 40A RCD with 30mA sensitivity.

SPD is for nuisance trip prevention during raining season and proctect my computer stuffs.

Correct me if my understanding is wrong.