Which transformer should I purchase for UK use? - Getting Started / Before You Buy - Rachio Community

Which transformer should I purchase for UK use?

post by sunnydays on Nov 1, 2017

Hi,

I am about to purchase a new rachio to be used in the UK? Could anyone suggest a transformer I should use (either hard wired) or to plug into an existing UK outlet to safely use the Rachio here?

Best Wishes


post by jolugo on Nov 2, 2017

Hello Sunny days,

Whatever you do don’t make the stupid mistake I did where I plugged in directly and burned out both the board and the transformer.

I have one that is just a normal transformer, see my thread Europe/ tosted my 110V Charger, Unit in a deep Coma!

I´m just trying to recover the unit from the initial mistakes, and then I will plug it in.

JLG


post by sunnydays on Nov 2, 2017

@jolugo. Actually my post was in response to your thread! Has anyone suggested which one to get, or I presume you can use a hard wired transformer specifically for the Rachio that I can get my electrician to install.


post by jolugo on Nov 2, 2017

@sunnydays

just got another one from china, I will compare it with the existing one and will provide you some feedback.

JLG


post by Gene on Nov 2, 2017

One of the options seems to be a step down transformer paired with Rachio’s original 110v supply.

Amazon has one here that is advertised for 100W continuous use. Since Rachio needs only 30W, it should be a good fit.

Seems like many of the AC transformers are marked with voltage under load, as in: if you run X transformer under full load, voltage will be Y. As such, one thing to look out for is to make sure that transformer is not too overrated above 1Amp or 24VA as not to have a high, no-load voltage.

Gene


post by MetTurtle818 on Apr 1, 2019

Hi, did you manage to figure this out? I’m considering buying a unit from the US for use in the UK. Can you share a link to the transformer you bought?