Can 2.5 mm2 Cable Handle 6.6 kW or 7.2 kW Induction Hob Power at 230V/400V?

Hello :)


Please let me know :-)


I am going to buy an induction hob, but I have a 2.5 mm2 cable installation throughout my apartment. Therefore, I wonder if such a cable can withstand a power of 6.6 kW or 7.2 kW.

In addition, if someone knows, please let me know what power is connected to such a board, i.e. whether 230 V or 400 V


Thanks in advance for any info :)



best regards
Gregory

The maximum load for a copper wire of 2.5mm? is approx. 30A (occasional - temporarily even a little more), which at 230V means 6.9kW.
The quality of the junction boxes in the wall may be a limitation, besides - if you add up loads on a certain section and you have more, it may be a problem.
I would rather recommend that this section of the installation (from the main connector) be made with a 4mm? cable.
However, if the main lead to the connector is only 2.5mm? then a troublesome failure can be expected there:
the strength of the strongest chain is only equal to that of its weakest link.

Thank you very much :)

Rzuuf wrote:

The maximum load for a copper wire of 2.5mm? is approx. 30A (occasional - temporarily even a little more), which at 230V means 6.9kW.

And what is the situation if the so-called strength???
I looked into the can and I see 4 x 2.5 mm2 + 1 x yellow-green.
Can a higher power board be connected with this solution ???

Of course you can add up the powers of the three phases. The induction hobs are designed to be connected to three phases.

Depends on the disc. Each manual specifies the section for which installation. Most often it is with single-phase 4 ^ 2 or three-phase 2.5 ^ 2. The cable from the meter (central distribution) is best run separately to such a cooker. Before connecting the hob, provide a suitable size electric switch. Do not route N and PE or PEN conductors through it.

Mostly, ceramic hobs have 2 connection options - 1 or 3 phases. And inductive, probably all of them have a 3-phase connection - they have very high power.
If you have a 3-phase connection, be sure to use it.
If the installation was done recently, eg in the last 5 years, and there is a "power" connection in the kitchen, 99% of it has its protection in the switchboard. On the other hand, the cables leading to the switchgear are certainly not with a cross section of 2.5 mm ^ 2, because such a connection to apartments (maybe you have a house) was done 40 years ago. Now you probably have 6 mm ^ 2, and most likely 10 mm ^ 2 or even 16 or 25 mm ^ 2.
Be sure to connect up to 3 phases, otherwise it will break your security when you try to cook dinner (if you connect to an ordinary socket).
ATTENTION! Make no mistake when connecting the hob - the exact description is in its manual. If you do something wrong, you will burn the CD and the warranty will not recognize it.

Rzuuf wrote:

The maximum load for a copper wire of 2.5mm? is approx. 30A (occasional - temporarily even a little more), which at 230V means 6.9kW.

Rzuuf wrote:

Of course you can add up the powers of the three phases. The induction hobs are designed to be connected to three phases.

Does this mean that with a 3-phase voltage, with a cross-section of 2.5 mm2, I can connect a current receiver with a power of up to about 18 kW ???


Thank you very much for the information :)

best regards
G.

By the way, as far as I know, the long-term load on a copper wire of 2.5 mm ^ 2 is about 20 A.

20A is used for the overhead line, but then "bows" voltage drop: 0.14V per meter (or 0.28V / m for a 2-wire line). If the line is 50m the voltage drop is 14V which is 6%, instead of the "normal" 220V you have 206V.

According to from my information, 20 A is max (or even 19), possibly with slight deviations (due to the cable laying, ambient temperature, number of cables in one run, way of laying). At this load, thermal equilibrium occurs. And above long-term, after a while the temperature will start to increase until it melts the insulation.
So why for 2.5 conductors is usually a fuse. 16 A? For 1.5 10 A. There is always a small margin.

This is not what this is about. In any case, 5x2.5 cables are enough for an induction cooker - it's about 10 A for a cable, so it's OK.