I'm searching for a relay that can both trigger and switch on either 110v or 240v. To clarify – both the coil voltage and the switched power would be the same voltage – and as low as 110v or as high as 240v.
(think of an appliance that could ship in the US, or internationally).
The relays I've found so far trigger at ~80% of max coil voltage, which isn't enough latitude to run in both scenarios. Am I likely to find a relay like this, or should I devise another solution?
Per request: here's the relay I was looking at with a datasheet for LY2F-AC220/240
Best Answer
No.
"70%V or less of nominal voltage" means it won't be more than 70% but it also means it may be unreliable or slow or not activate at 50% Vac rating and 200% would exceed power rating of coil.
There are many alternatives, but appliances usually have a low Vdc for power relays.