Shelly instead of an impulse relay: push buttons with a Shelly

Several push buttons and an impulse relay that toggles on every press: this circuit is easy to make smart. The Shelly replaces the impulse relay.

Push buttons → Push buttons + Shelly 10 steps in 1 box

Different cables, swapped colours, more switches? The calculator takes over this setup and you adjust it.

⚡ Work on fixed electrical installations belongs in the hands of a qualified electrician. Take the plan to yours. Safety notes

More about this change

The button line goes to the SW input, the output O to the lamp. The push buttons stay unchanged.

What to watch out for

Set the input to “Button” in the Shelly app, or the lamp only stays on while you press.
The old impulse relay comes out. If it sits in the distribution board, a Shelly Pro 1 on the DIN rail can go there instead.