Why do some sockets get hot

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How hot can plugs get?
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Posts: 17
Place of residence: Wesel


Hello everybody.
Our heating has failed. Therefore we use two fan heaters at times of 2000W each.
In both devices, the plugs get so hot that you can no longer touch the contacts. Is that a concern? With a 16A line you could even go up to 3600W.
Best wishes
heater

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Place of residence: Rheinbach


With currents around 10A, the contacts usually get warm.
Especially when the contact resistance is increased due to lame contact springs and oxidized contacts.

On the other hand, it's easy to misjudge the temperature. 60 ° C is enough that you can no longer touch it.

But if the plastic discolors or it smells, then that is clearly too hot.


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Posts: 6670
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Hello! If they get so hot that you can hardly grab them, I would try a different socket ( not power strip! ) and try it there! If plugs get this hot, there is a contact problem!

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writer



Posts: 804
Place of residence: Austria

Hello,

A Schuko plug should or must not become more than lukewarm.
It is not designed for 16A continuous load.
You should consider plugging in these fan heaters directly.
An increased temperature also often occurs when cheap plugs with hollow contacts are in use.


Lg

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Place of residence: Wesel

The electrical system in our house is three years old. So the sockets should be fine. Odor does not occur. So no plastic stews.

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And the connector pins are also nice and bare?

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Well, the devices are not brand new. Should I polish the contacts?

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It won't hurt.

_________________
Disclaimer:



The above post is my private opinion.



Legal claims can not be derived from their use.



Especially VDE0100; VDE0550 / 0551; VDE0700; VDE0711; Observe VDE0860!

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Talkative



Posts: 140
Place of residence: Hamburg

Hello,
are these possibly screw plugs?
Old screw plugs in particular often have a contact problem on the inside, which then leads to heating in the case of corresponding currents.
Greetings Holger

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Place of residence: Wesel

No, they are welded.

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... maybe a wire break just behind the welded connector

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Are there child safety locks in the cans?
As a result, the plugs cannot "go in" completely
greeting
George

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The plugs are plugged into sockets on different circuits, and are they both getting hot?

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Feeling a temperature is always one of those things. At +10° I'm still walking around in my T-shirt and my wife is already getting the cardigan. I get the hot pan off the stove without gloves and my wife needs it.

Some of these fan heaters get warm on the plugs. Regardless of which socket you use it. Then I changed the supply line, as before only 2x1.0mm² and the plugs were no longer warm. I myself have been running a Severin fan heater 2000W for over 10 years. The plug never got hot. Lead 2x1.0mm² and welded plug. Had also run through a night once.

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Posts: 17
Place of residence: Wesel

Thanks everyone for the answers. Perl was spot on with his assumption that the connector pins are not bright enough. I polished it to a nice shine. Now the contacts are only lukewarm. I didn't think that would matter that much. But the fan heater hasn't been in operation for a couple of years.
Best wishes
heater