Shelly 1 v3 - Electric flash when turning off device?

RiZZaH

Hi,

Im fairly new to Shelly, but I installed a Shelly 1 in between an electric heater following the wiring diagram I found online here:

2c0ffde78d2858058997fda0f3bf8851cf80e2ee.png

(Note I didnt split cables Shelly like in the image but with a 3 wire Wago):

4306-1_WAGO_Terminal_Block_3_wire_221-413.jpg

Now everything works fine, including the heater. But I noticed when I turn off Shellys relais to the heater I can see a white flash happening inside in the gap next to the screws.

Im just wondering if this is normal?

The heater is 2000 watts, which is according to my calculations on 230 volt way under Shellys limit.

Kind regards,

Riz

condiosz

I would never connect a heater of 2kW to a shelly.
You'll burn your relay up quickly.

In stead, use a contactor and let the contactor power the heater.

RiZZaH

The device says its rated for 230 volts and 16A. Thats a limit of 3680 watts no? So my 2000 watt heater is well in the limits?

condiosz

It is well in the limits, yes. That doesn't mean it will live a long life...

There are peak currents and so forth.

Anyway, at these levels sparks should not be a surprise and hence it is (in my humble opinion) much better to use heavier gear than that very tiny switch.

But if you like it... by all means. It's only my opinion.

Shelly 1 v3 - Electric flash when turning off device?

Ähnliche Themen

Dimmer won't turn off

Uni for use in Motorhome

Shelly dimmer 2 complete LOCK up.

Shelly 3EM goes Homematic - with original Firmware

Expectations for -15 Celcius?

Shelly EM goes Homematic - with original Firmware