Overheating Pro1PM when drawing 234V, 3,000W - 12.82A?

[WalkerHunter]

After five, ten minutes of powering my hotwater service the Pro1PM send an over-heating message and stops powering.

Is this expected behaviour?

[Olsche]

What is the installation situation (ambient temperature, space to the left and right of the Pro1PM)?

what does the output of http:/DeviceIP/rpc/Shelly.GetStatus say?

[terae]

Do you route N through device terminals? It's common cause...

[thgoebel]

Due to the fact, the Shelly pro 1PM has only one N terminal, it is IMHO hardly possible to route a neutral wire through the device. But a close distance to other components (Shellies, relays, fuses) in the fuse box may increase the internal temperature, which is measured by a NTC nearby the internal relay.

Edited April 27 by thgoebel

[WalkerHunter]

On 4/27/2024 at 10:25 PM, Olsche said:

What is the installation situation (ambient temperature, space to the left and right of the Pro1PM)?

what does the output of http:/DeviceIP/rpc/Shelly.GetStatus say?

This occurred today:

{"ble":{},"cloud":{"connected":true},"eth":{"ip":null},"input:0":{"id":0,"state":true},"input:1":{"id":1,"state":true},"mqtt":{"connected":true},"switch:0":{"id":0, "source":"overtemp", "output":false, "apower":0.0, "voltage":241.3, "freq":50.0, "current":0.000, "pf":0.00, "aenergy":{"total":386435.051,"by_minute":[0.000,0.000,0.000],"minute_ts":1715575260}, "ret_aenergy":{"total":0.000,"by_minute":[0.000,0.000,0.000],"minute_ts":1715575260},"temperature":{"tC":46.8, "tF":116.3}},"sys":{"mac":"30C6F7829EAC","restart_required":false,"time":"14:41","unixtime":1715575302,"uptime":1402356,"ram_size":259240,"ram_free":100384,"fs_size":524288,"fs_free":217088,"cfg_rev":11,"kvs_rev":0,"schedule_rev":0,"webhook_rev":0,"available_updates":{},"reset_reason":3},"wifi":{"sta_ip":"192.168.1.250","status":"got ip","ssid":"LeStrandStarlunk","rssi":-89},"ws":{"connected":false}}

I will get a thermometer into the panel.

Edited May 13 by WalkerHunter

[Olsche]

37 minutes ago, WalkerHunter said:

temperature":{"tC":46.8, "tF":116.3}},

is a very low temperature value when idle. What does it look like when the relay is switched on and there is the 3kW load?

[gunther]

Hi Guys, I have he same issue with the Plus 1 PM, already on switched 2600W. Also ventilation did not help, I mounted it in a installation box which I designed as a swiss cheese with a lot of wholes. The device should be able to switch up to 3500W. Any help or Ideas?

[TravellingKiwi]

Any updates on this? I want to control a spa pool with one of these so if it cant handle 10-12A continuously it wont be of any use to me.