dnb Posted December 6, 2021 Share Posted December 6, 2021 Are there any similar devices to the Shelly Plus 1 that don't have wifi? I have a very simple problem to solve that won't be enhanced by wifi. I need a small relay device that can sit in a metal 1 gang back box behind a fused connection unit to control a 240v 300W load based on a 24v DC signal (could make 12v work too). Obviously the Shelly device will do this quite well for a reasonable price, but surely there's something simpler out there that doesn't need me to get my soldering iron out... Found loads of DIN rail relay units but these don't suit the location. Link to comment Share on other sites More sharing options...
markc Posted December 6, 2021 Share Posted December 6, 2021 Sounds like you just need a 12v coil relay with say spade terminals soon soldering required Link to comment Share on other sites More sharing options...
dpmiller Posted December 6, 2021 Share Posted December 6, 2021 does it need true isolation or just switching, and how often? An SSR might fit the bill. Link to comment Share on other sites More sharing options...
SteamyTea Posted December 6, 2021 Share Posted December 6, 2021 On of these. https://www.ebay.co.uk/itm/165118285057 Link to comment Share on other sites More sharing options...
ProDave Posted December 6, 2021 Share Posted December 6, 2021 Or you can buy wireless relay modules. I use one for my portable convector heater dump load. Transmitter in the box with my Arduino and receiver in a 2G back box creating a wireless switched 2G socket. Link to comment Share on other sites More sharing options...
dnb Posted December 10, 2021 Author Share Posted December 10, 2021 Thanks all. I think @SteamyTea and @dpmiller have it cornered. True isolation of supply isn't required since I think I can use a switched fcu for that - it won't be in an inappropriate zone itself. It just doesn't need wifi. No need to congest the spectrum more than necessary. We have enough wifi devices already. Link to comment Share on other sites More sharing options...
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