Welcome Guest ( Log In | Register )

Outline · [ Standard ] · Linear+

 2 Poles MCB Incoming TNB Power

views
     
TS13aby
post Jul 25 2024, 07:05 PM, updated 2y ago

Enthusiast
*****
Senior Member
975 posts

Joined: Jan 2009



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 sad.gif .

This post has been edited by 13aby: Jul 25 2024, 07:06 PM
TS13aby
post Jul 25 2024, 07:41 PM

Enthusiast
*****
Senior Member
975 posts

Joined: Jan 2009



QUOTE(syaifau @ Jul 25 2024, 07:29 PM)
what?
*
Dont la like this bro biggrin.gif

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 icon_question.gif because i planning to change all to HAGER . and mayb the 10mm to 16mm

Advice please rclxm9.gif
TS13aby
post Jul 26 2024, 09:46 PM

Enthusiast
*****
Senior Member
975 posts

Joined: Jan 2009



QUOTE(Momo33 @ Jul 26 2024, 12:42 AM)
2 AC , 2 WH  on already is about  20  A .
*
ya thats why i feel weird also . mayb my clamp meter spoil sweat.gif
TS13aby
post Jul 26 2024, 09:48 PM

Enthusiast
*****
Senior Member
975 posts

Joined: Jan 2009



QUOTE(Momo33 @ Jul 26 2024, 01:14 AM)
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.
*
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
TS13aby
post Jul 26 2024, 11:41 PM

Enthusiast
*****
Senior Member
975 posts

Joined: Jan 2009



user posted image

here is the photo of the incoming (Bottom Left) to two RCCB
TS13aby
post Jul 27 2024, 06:32 PM

Enthusiast
*****
Senior Member
975 posts

Joined: Jan 2009



QUOTE(Momo33 @ Jul 27 2024, 12:26 AM)
looks fine .  pix too.  nod.gif
*
so means i can continue use all 63A ya cox i planning to change all to Hager .
TS13aby
post Jul 30 2024, 12:04 PM

Enthusiast
*****
Senior Member
975 posts

Joined: Jan 2009



user posted image

Bought from two different place , why color different?
TS13aby
post Aug 12 2024, 04:24 PM

Enthusiast
*****
Senior Member
975 posts

Joined: Jan 2009



QUOTE(ceo684 @ Aug 12 2024, 02:01 AM)
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.
*
I plan to change all to Hager , so i follow back all same 63a for the RCCB and 2 Pole MCB for incoming ya .


TS13aby
post Aug 12 2024, 04:33 PM

Enthusiast
*****
Senior Member
975 posts

Joined: Jan 2009



QUOTE(rphoen1x @ Jul 30 2024, 01:37 PM)
I think you can check the authenticity at https://hager.com/_en/check
*
Sent , but no reply from them since ever haha


QUOTE(ceo684 @ Aug 12 2024, 02:02 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
*
Yes i bought from Authorised Reseller / Distributor shop (Pentapower(M) Sdn Bhd (Puchong) & (CPE Electrical Supplier via Shopee). But they say use 4.5k is enough . Or should i change all to 6k as developer provide?

QUOTE(ceo684 @ Aug 12 2024, 02:06 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.
*
Ya i redo the reading correct already , 1 WH running around 14A .... Incoming is 16mm from meter but thn 10mm to both RCCB (100mA & 30mA)

For my WH , Developer no give RCCB / RCBO i added myself for safety .
TS13aby
post Aug 12 2024, 09:07 PM

Enthusiast
*****
Senior Member
975 posts

Joined: Jan 2009



QUOTE(ceo684 @ Aug 12 2024, 08:11 PM)
Forget the 100mA RCD (buang), rerun with 16mm inside the DB. That 10mm is only good for ard 40A and can create a hotspot which is unprotected because it is supposed to be 16mm throughout.
*
means only use 1nos 30mA whole whole house?

The empty space is 2 nos RCCB 0.01 .. not yet install when snap this

user posted image

This post has been edited by 13aby: Aug 12 2024, 09:08 PM
TS13aby
post Aug 12 2024, 10:41 PM

Enthusiast
*****
Senior Member
975 posts

Joined: Jan 2009



QUOTE(ceo684 @ Aug 12 2024, 10:18 PM)
Yes. According to MS1979 COP it is allowed. And safer too for changing lights.
*
My neutral bar is separated by two sides , can i connect both side by tapping a wire? or need to replace a longer bar
TS13aby
post Aug 13 2024, 10:02 AM

Enthusiast
*****
Senior Member
975 posts

Joined: Jan 2009



QUOTE(ceo684 @ Aug 13 2024, 02:50 AM)
Common neutral, use a 16mm Mega Kabel pigtail.
*
U mean connect with a 16mm cable like photo ? 10mm boleh? Existing Neutral developer using 10mm for both side

user posted image

This post has been edited by 13aby: Aug 13 2024, 10:06 AM
TS13aby
post Aug 13 2024, 11:22 AM

Enthusiast
*****
Senior Member
975 posts

Joined: Jan 2009



QUOTE(ceo684 @ Aug 13 2024, 10:07 AM)
Beli lah one meter of 16mm. Less than 10 bucks per meter only. 10mm not good enough. https://s.lazada.com.my/s.PTisA
*
16mm i got spare , so i just tap the wire to connect the both bar ya
TS13aby
post Aug 13 2024, 08:47 PM

Enthusiast
*****
Senior Member
975 posts

Joined: Jan 2009



QUOTE(anakkk @ Aug 13 2024, 11:24 AM)
i dono, but you using 3 phase or single phase?
*
satu phase
TS13aby
post Aug 14 2024, 05:52 PM

Enthusiast
*****
Senior Member
975 posts

Joined: Jan 2009



QUOTE(ceo684 @ Aug 14 2024, 05:14 AM)
Yes, do a smooth horseshoe shape
*
just notice i dont have cutter size to cut 16mm haha , any recommendations for the cutter?
TS13aby
post Aug 17 2024, 02:31 PM

Enthusiast
*****
Senior Member
975 posts

Joined: Jan 2009



QUOTE(ceo684 @ Aug 12 2024, 08:11 PM)
Forget the 100mA RCD (buang), rerun with 16mm inside the DB. That 10mm is only good for ard 40A and can create a hotspot which is unprotected because it is supposed to be 16mm throughout.
*
100mA removed and all now using 30mA RCCB

user posted image
TS13aby
post Aug 22 2024, 09:19 AM

Enthusiast
*****
Senior Member
975 posts

Joined: Jan 2009



QUOTE(ceo684 @ Aug 21 2024, 12:32 PM)
The MCBs should ideally use the same brand so they're the same height.
*
ya will change all to hager , previously i test bought two mcb from 2 different seller . one of it when power off V test 7.xx 😢😢 suspect is fake .... the other one test V is 2.xx perfect ....

 

Change to:
| Lo-Fi Version
0.0188sec    0.91    7 queries    GZIP Disabled
Time is now: 30th November 2025 - 12:11 AM