No choice, my father already called his "good friend", he only brought 2 RCD for us to choose.
1) Maxguard 300mA
2) Delixi 100mA
We chose (2).

Initially I was thinking to buy a branded RCD from online then ask electrician to install l, i will pay upah. My father told me "don't kepoh". I just shut up lor.

Actually that RCD is the most important because it protect against earth leakage/ground fault interrupter. You can change it yourself since its after the main switch fuses (hence the power can be shut off safely).
ABB 4P 63A 100ma only RM138 - https://shopee.com.my/ABB-RCCB-ELCB-RCD-40A...1048.7350447835 which if compared to same spec CHINT RCCB at RM107 (CHINT is PRC top MCB brand) isn't too expensive.

4P 30mA gives better human shock protection but since you are using in commercial i.e. heavy load equipment so 100mA is also acceptable.
I generally go with ABB because their "general home use" RCDs are cheapest among the 3 major brands ABB Hager Schneider [for my purpose] and if i remember correctly, RCD for ABB and Hager usually not made in China, but Italy/France respectively hence they cost more.
For high amp high sensitivity 4P 63A 30mA / 100A types these are more complex so it really cost more

Like the 40A 4P 30ma I am using (not pictured) is only RM127, cannot use 63A as TNB service only 10mm wire.
Their 10mA RCD for WH is a bit pricey, as compared to Hager and PRC Schneider. But got datasheet and its current model. H 10mA for water heater the stuff in the market seem to be discontinued model.

This post has been edited by ceo684: Oct 17 2020, 03:42 PM

Managed to hack the skirting bead without breaking the tiles, while wait for the needle gum to reach, meanwhile patch the wall cracks, hopefully all work smooth

Alternatively thinset mortar also can work to stick back the skirting tiles, if it does fall off

This post has been edited by ceo684: Oct 25 2020, 01:38 PM

I came across this forum while searching for better understanding on how to resolve my frequent power trip.
I am staying in a condo (mid-level) and somehow my unit's power frequently tripped during thunder & lightning while other units seem to be okay. My unit's DB has Single Pole MCB for TNB supply line protection and every time the power trip, it is the RCCB that trips.
I got a couple of electricians to suggestion solution. One suggests I replace the Single Pole MCB for TNB supply line protection with a Double Pole MCB, while another suggests that I replace the RCCB with lesser sensitivity.

To finally decide what to do, I like to seek for your expert opinions regarding the following for better understanding:

1. Can the surge due to lightning causes the RCCB to trip? I always thought it should be the mains MCB and not the RCCB?

2. While replacing SP MCB with DP MCB provides better protection in general, does this replacement likely to reduce my RCCB tripping?

3. Replacing RCCB with a less sensitive model will definitely reduce the tripping, but how to avoid exposing my appliances to higher risks?

Thanks.....


Trying to attach the photo of my current MCB & RCCB

Keen to know too!