Reduce the power of a heating resistor of 3KW-220v

[elephant]

Wow!

In Belgium, electric heating is rare, because it is expensive. And that you are generally refused such powers in residential areas.

The standard consumption of a household is around 4000 KWh / year, 8000 for those who have a boiler!

In time, we connected a lot between 3 X 20 and 3 X 40 220/380

Now we are more in the 1 X 40, at 1 X 60 to avoid the problems of neutral breakage.

[fabio.gel]

Amazing price difference on load shedders

To manage my ball I only need one lane.

I started on this model:



well at the most expensive € 246 new
http://www.articles-quincaillerie.fr/electricite-4/delesteur-monophase-230-v-3-modules-1-circuit-15-a-legrand-139970.html

at the cheapest 97.43 € new (FDP included)
http://www.centrale-brico.com/bricolage/produit/B790400.htm?PROD_id=B05005AE-4781-4345-924D-47EA4161A197



By cons on this load shedder it says 15 A max shed what does that mean?

[gegyx]

It is however clear.

When the intensity to provide in your house exceeds that which you indicated on your load shedder (15, 30, 45, .... 90A), indication set in the same way as your meter, and well the shedder cuts a circuit of 15A.
By the time the overconsumption in your house subsides ...

On this circuit of 15A max, you will connect your cumulus (which consumes less than 15A)
So the current arrival wires supplying the circuit breaker of this cumulus will not come from the bar of the electrical panel, but from the load shedder.

[fabio.gel]

: Shock:

It is however clear.

When the intensity to provide in your house exceeds that which you indicated on your load shedder (15, 30, 45, .... 90A), indication set in the same way as your meter, and well the shedder cuts a circuit of 15A.
By the time the overconsumption in your house subsides ...

On this circuit of 15A max, you will connect your cumulus (which consumes less than 15A)
So the current arrival wires supplying the circuit breaker of this cumulus will not come from the bar of the electrical panel, but from the load shedder.

gegyx thank you

PS: the petios and the cat woke me 4 times last night, I'm loose this morning

[BobFuck]

Thanks for the cheap link, I note!

FYI, this stuff contains a torus, a relay, and € 2 of electronics: they could sell it for € 20 and still make some margin on it but the prices are downright excessive ...

I take this opportunity to swing a shop that I like:

http://www.la-boutique-electrique.com/d ... ectric.htm

[Forhorse]

It is magneto-thermal (in the event of a large overshoot, the cut-off is instantaneous). I don't know how the magnetic part would react to direct current ... There shouldn't be any problems.

A connection circuit breaker is effectively of the magneto-thermal type (often differential)

But what cuts the current in the event of overflow of subscription it is the thermal part.
The magnetic part protects against short-circuit (much shorter reaction time) but at much higher intensity: more than 10 times the nominal current.
That you draw 16A instead of 15, the magnetic does not care royally, he will start to wake up around 150A (knowing that a short-circuit current is generally expressed in kA, in domestic it is often between 1000 and 3000A)

Other details:
For a 3kW subscription the circuit breaker is set to 15A ... yes 3kw at 230V is 13A, so EDF gives us 2A? well no, because it is necessary to take into account the phase shift (we are entitled to a cos phi of around 0.85) because EDF sells a 3kW subscription and not 3KVA, suddenly we are entitled to a little bit of reagent are not that dog

(the settings of the connection circuit breakers are 15/30/60 / 90A depending on the subscription 3/6/9 / 12kW in mono and up to 18kW in tri. then we go to the yellow tariff and it is no longer the same story.