ᐅ Connecting a Washing Machine and Dishwasher Above a Junction Box (T15)

Dear homebuilding enthusiasts,

I have a question regarding an electrical installation in our house and hope an electrician among you can tell me if this could work:

We want to operate a washing machine (220V) and a dishwasher (220V) in the kitchen simultaneously. My question concerns the power connection to an existing T15 outlet (dual 10A circuit protection). Our plumber suggested connecting both appliances via a shared T15 plug: that is, appliance 1 connected to L1, appliance 2 to L2, and both devices sharing the neutral conductor.

This way, no new outlet would be needed, both appliances would be individually protected since they run on separate L1 and L2 lines, but they would share the neutral conductor. Would this be a problem?

What do you think?

Thank you very much for your feedback and best regards,
Stephan

Hi,

I have little experience with electrical work. However, I believe that what is planned here is not allowed.

Connecting two devices through one socket is prohibited.

You should seek additional professional advice.

Thank you, I am starting to think the same.

Sandraholster schrieb:
Hi,

I have little experience with electrical work. However, I believe what is planned here is not allowed.

Using two devices on one outlet is prohibited.

You should get another professional opinion.

That is prohibited? I didn’t know that. We have something similar, and so far everything has worked fine. I will definitely have an electrician come and take a look.

As already correctly pointed out, connecting two devices to one socket is not allowed.

Either install a second socket (pay attention to the phase sequence) or use a T15 double plug (the phases should be swapped there...).

Alternatively, simply use a power strip. Although both devices will then be connected to the same live conductor, this should not cause any issues when considering simultaneity.

That is correct, and especially when it comes to electrical installation, the work should be done with the utmost caution. These two devices simply should not be connected to the same outlet.

That could lead to a serious problem.