Relay or SSR for electrical heating from tado smart thermostat?
If the labelling on the SSR is correct then your proposal is fine on the output side - except that you are missing a fuse or circuit-breaker.

The 22k resistor on the input limits the current in a short-circuit to about 10 mA. Since the minimum input voltage is 80 V I suspect that 22k is way to high. The device will accept a 230 V input directly. Again a 500 mA fuse on this circuit would be a good idea.



Figure 1. An AC input, AC output SSR.

SSRs work by using LEDs on the input to trigger a phototransistor on the output side. The optical isolation between the two sides provides the electrical isolation - although your circuit doesn't need it as both sides are fed from the same mains supply.

Your SSR has an AC input. This is indicated by the back-to-back LEDs. (One is pointing down and the other up.) This means that each of them will light on alternate mains half-cycles. The box marked Input Circuit looks after current limiting for the LED. You can apply any voltage between 80 to 250 V AC directly to the input to turn on the output.