Shelly EM + 2x 50A works with Shelly integration for me. I use them in the energy panel and I didn’t have to edit anything. Everything works perfectly.
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The integration detects my shelly also immediately.
The other connection option: The mqtt sensor i have not created so far.
In the default firmware of the shelly i don’t see the update interval option. With esphome of course you could specify this.
Further i don’t know what the pro’s and neg’s are of the esphome vs native firmware
If I looked at the power sensor, the change in current power is about 1 second. If you look at the energy sensors where the data is stored and compared over 2 hours, the loading speed is irrelevant, but it will probably be the same.
The advantage is that you do not have to configure anything. You just add the created shelly entities
My boiler (220V 3000W) was plugged on a PowR2 without problem since 2 years, but our today morning experience shows it was a really really really bad idea!!! We were really lucky, the fire shut down itself. Phew!!
I’m considering buying a sonoff powR3 which is designed to draw 25A… hope it’ll be safer for the future.
Wow…I’m glad that I had decided to not use it.
I have buy the Shell EM’s with the clambs which are very safe (But I don’t needed the switch functionallity only the power measurements).
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I can add my experience from today:
My sonoff pow v1 actually did not burned down, it just melted, luckily. I had it on my baking and microwave oven (two high load devices) in the kitchen and its been working for, i don’t know, 4 years maybe. Since recently i started to hear that relay click-clack sound. I have disconnected it and saw a melted plastic.
When i opened the sonoff, there were black burning marks from the fuse. The fuse F15 is still going, it just melted everything around itself, mainly the thin PCB where it was soldered. The thin copper PCB layer could not dissipate that heat coming from the metal ends of the fuse, therefor the tin went fluid. Luckily it did not short other connections down its way.
Oven draws approx 2000W and microwave another 1400W. Voltage on my network is usually about 240V. So about 14 Amps for the fuse inside sonoff. I can imagine it went that way only for 2 minutes on a a rare occasion, but it was enough to cause fire hazard. The worst part of it: it was still within the manufacturers specifications!
Sorry I cant upload pictures somehow.
“Sorry, there was an error uploading…”
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Wow…it is a dangerous product!
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