CHF64.90 was CHF75.90
Shelly 3EM
Question about Shelly 3EM
Quite stupid question (have only installed "normal" Shelly so far): the part can be installed in the fuse box to count the total consumption of all devices/circuits in the house, right? Are 230V and 400V supported?
With the 3EM you can measure the 3 phases (3x400V). The power that is stored in the minute interval corresponds to the effective power of each phase. If you add all 3 together, you have the total power consumption. When installing, it is important that you clip the current clamps all in the "same" direction over the lines, otherwise phases can be counted as "feed-in" although it is a consumption.
Can I also use it to measure the consumption of individual circuits (behind the circuit breaker)?
Well, by 400V you probably just mean a 3-phase connection, right? If so, you can measure it with the 3EM by measuring each phase and then adding the wattage of the 3 phases.
Thank you;)! Max load 230v, too bad. But it should be suitable for normal house 230v circuits. Do you have your own experience?