As mobile charger is getting higher and higher power, so I check how much power a charger typically consume compared to other home appliance. Found the chart below.



I have heard a typical home power socket should be able to provide 13A x 240V safely, which is 3120 watt. That will cover almost all the appliance above except water heater. How does water heater draw their power so much and yet not causing a power trip?

dunno where that chart take data, but standard panasonic punya website says 3.6kw

they got their own main circuit board

dont think ur typical home water heater runs at 12kW at all. most at the market is at 3-5kW tops.

and that is the output if u crank the temp to max. under normal usage conditions u wont even reach half of that.

regardless u really shouldnt plug your water heater using 13A to existing socket, instead it should be wired on an independent circuit with separate 20A mcb and using 20A double pole switch as on/off control

The power is limited by the fuse and cable.
Use a higher fuse and cable. Then you can get more power.

This post has been edited by LamboSama: Dec 17 2022, 02:26 AM

I wouldn't trust the chart to be honest. The power started is too high for many appliances.

Also nowadays everything is 220-240v so that's as low as 2860W for each SSO.

To answer your question though, water heaters are fed through a dedicated line with larger current capacity, typically at least 16A and higher. The same goes the for high power appliances like air conditioners and electric hobs as well.

my water heather use 20a .
since it is running on 4k watt.

2hp and 2.5ph ac also running on 20a

This post has been edited by kons: Dec 17 2022, 06:26 AM

Weird chart.. rice cooker 1.4kW while vacuum 1.2kW..

Maybe omputih water heater that works in the winter

Too high liao, easiest to check your own appliance, there's always written how many W on the appliance somewhere unless it's rly rly cap ayam China made

maybe thats not ordinary water heater, but water heater for either entire house or entire hotel, it need to quickly heat large amount of water not for single person usage.

Water heater biasa 3kw je la

Air cond 1.5hp pun lebih kurang 1.5kw

Apa chart ni

I wouldn't trust this chart, if everyone says the info is inaccurate. The chart is done as a marketing tool by a marketing entity with their own agenda. Most probably to show their appliance use less energy compared to other appliances in the house.