My house all Eletrical on to max Test incoming Power only around 10A . Means i can change to 2Pole 32A MCB? Developer give now all 63A (1 x 2Pole MCB , 1x 100mA and 30mA) All 63A macam too much .

and after the 2 Pole 63A incoming MCB , the outgoing Cable is using 10mm not 16mm .

This post has been edited by 13aby: Jul 25 2024, 07:06 PM

what?

Dont la like this bro

i not sure i clamp wrong or it really so low , 2 Airconds 2 WH this two is the biggest power eater i guess . Cuckoo , Air Fryer , Washine Machine and Fridge all On .

Or

i just follow back Developer 63A because i planning to change all to HAGER . and mayb the 10mm to 16mm

Advice please

My knowledge in electrical is so vastly impaired, i cant even advise myself.

All the best with your investigation, @13aby

2 AC , 2 WH on already is about 20 A .

use MCB 20 A for AC, WH , 4 mm cable
MCB 6A for lightning. 1.5mm
MCB 16 A for 3 pin socket . 2.5mm

for RCCB 63A , 100mA for mains ,25mm cable
RCCB 63A , 30mA for the 3 pin sockets , 2.5mm cable
RCCB 63A , 10mA for WH , 4mm

post a pix of your DB box better to advise you.

ya thats why i feel weird also . mayb my clamp meter spoil

Using 63A incoming 2 Pole MCB and others 2 Main RCCB 63A also no problem? both is 100mA and 30mA now . Cable to 100mA and 30mA Developer give 10mm but the incoming TNB is 16mm . for the cable size min is 16mm for 63A

My is High Rise Property

This post has been edited by 13aby: Jul 26 2024, 09:48 PM

here is the photo of the incoming (Bottom Left) to two RCCB

looks fine . pix too.


This post has been edited by Momo33: Jul 27 2024, 12:27 AM

so means i can continue use all 63A ya cox i planning to change all to Hager .

change over to Hager is better cos hager products good quality hence bit price higher.

the items your developer use i also never see this brand before.... maybe unknown china product no sirim too .

Bought from two different place , why color different?

I think you can check the authenticity at https://hager.com/_en/check

May I know why you use 63A RCCB instead of 25A RCCB for WH since there should be a 20A MCB for WH to protect the RCCB?

if you know your WH amp rating then chose accordingly .

yes can use rccb 25A, 10mA for those instant WH / 4kW type.

63A one can handle a heavy current
rccb do not trip on over current .

check box manufacture which country
marking on item side s may tell

there is china , France or fake that i have seen .

It’s already sized correctly. Don’t waste money

What I would suggest is to redo the pigtails as there is a minimum bend radius (don't hard turn 90 degrees), keep the cable curved gently. Nanti patah inside and create hotspot.

This post has been edited by ceo684: Aug 12 2024, 02:12 AM

Make sure buy from proper seller. Many recon ABB and Hager from Singapore HIP refurbishing land in MY. Plus why don’t you get 6kA withstand model instead of the 4.5kA. ABB not expensive for 6kA

This post has been edited by ceo684: Aug 12 2024, 02:04 AM

Your clamp meter not true RMS is it.
One unit WH running from cold already take 14-16A easily.

The 16mm one you can buy Mega Kabel meter loose cut in the correct colours (red and black) as necessary, but if your supply (from meter) is 10mm then no point lah.

Also, not much use for the 100mA RCD when the 30mA RCD is capable for whole house sockets and lights. There is little point in using the 100mA RCD in modern day without fluorescent tube lights.

This post has been edited by ceo684: Aug 12 2024, 02:09 AM