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Wiring: can meter power (A,B,C) be tapped after the CTs ?


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In the wiring diagram that came with the Shelly, the cables to power it tap that power before the CT clamps I guess meaning that the Shelly is not considered part of the load.

That makes installation in my case much more complicated since it means I would have to split the 3 phase cables before the main breaker.

So, can the CTs be put just before the main breaker and power for the meter (A,B,C) at some point after it ?

Also are 10A breakers for A,B,C OK ? The installation doesn't specify an appropriate breaker size.

Thanks for any info!

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22 minutes ago, PentVaer said:

So, can the CTs be put just before the main breaker and power for the meter (A,B,C) at some point after it ?

This is possible. 
 

Due to the fact, the Shelly pro 3EM is consuming very small power, I would suggest to use micro fuses with 300 to 500mA in fuse-holders:

Click

This measure protects the Shelly itself. A possible fault shall not cause massive damage. Thus, the device may be repaired…

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Terrific, thanks for the quick help.

 

1 hour ago, thgoebel said:

This is possible. 
 

Due to the fact, the Shelly pro 3EM is consuming very small power, I would suggest to use micro fuses with 300 to 500mA in fuse-holders:

Click

This measure protects the Shelly itself. A possible fault shall not cause massive damage. Thus, the device may be repaired…

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