Three phase breaker for use with Shelly 3EM

kenny0961

Hi,

Can anyone tell me the specifications of the three phase breaker that Shelly recommends for use with the Shelly 3EM?

I want to purchase one, thanks.

Gast10

Hi,

Hello, do you mean to secure the Shelly 3EM itself?

kenny0961

This is what I mean.

I believe that the instructions say that the Shelly 3 EM has to be connected to my home power supply via a 3 phase breaker?

Gast10

It has to be secured, that's right.

There is no special recommendation from the manufacturer Allterco.

Here in the forum, an other user has found a very lean solution for protecting the 3EM, which allows working with very small fuses.

Here is a link to it:

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kenny0961

I didn’t mean a brand or model, I really meant how many amps?

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