I have some 12A 240V SSRs with no data. I'm using them to switch a standard light bulb on and off. They work fine in my application, but what worries me is they seem to switch on when there is no load connected, even if there is no voltage to the input terminals.
For example, I have a 120V panel-mount indicator light wired up to the 120V switched side so that I can see when the SSR is switched on (I'm not sure if this indicator light is an incandescent or LED). With my load plugged in everything works fine and the panel indicator comes on when the SSR is switched and it goes off when it's not. But when I unplug the load, this panel indicator lights up as if the SSR is on. And if I measure the voltage at the receptacle, I get 120V as if the SSR was on, even though there is no voltage applied to the input terminals. When I plug the load back in, the indicator goes off and the light bulb does not light, unless voltage is applied to the switching terminals.
Why is it doing this? Do I need some kind of snubber/pulldown resistor somewhere, like across the input terminals or across the output terminals? Is this dangerous?