Do I need a separate Shelly relay?

Yes. Wall Switch 4 is passive: the buttons wire to the SW inputs of a Shelly Plus, Gen3 or Gen4 relay. Without a relay behind it, the buttons control nothing.

How many buttons does it have and what can they control?

It has four independent buttons. Use them for four lighting circuits, two blinds (two pairs) or scenes, depending on how you configure the relay inputs in the Shelly app.

Does it connect to 230 V?

No. The front does not connect to mains; it switches only a signal up to 12 VDC / 18 VAC at 50 mA to the relay input. The relay in the back box is what connects to 230 V.

Which Shelly devices is it compatible with?

The included holder is compatible with all Shelly Plus devices, with Shelly 1, 1PM, 2PM, i4, Dimmer and DALI Dimmer in Gen3 and with Shelly 1 and 1PM in Gen4.

What are the dimensions and material?

The housing is plastic and measures 70x70x12 mm without the holder, fitting standard switch consoles, including those with limited space.

Who should install it?

We recommend a qualified electrician, since the Shelly relay behind it goes into the back box and connects to 230 V. CasaSmart, as official importer and integrator, can handle installation.

Shelly Wall Switch 4 Black

Name: Shelly Wall Switch 4 Black - 4-button front for Shelly relay
Brand: Shelly
SKU: SHELLY-WALL-SWITCH-4-BLACK

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What it is, who it's for, what it does

About this product

Shelly Wall Switch 4 in black is a passive four-button front that brings physical control back to the wall in a smart installation built around Shelly relays. The switch has no power supply of its own and never connects to mains: each button closes a dry contact to the SW input of a Shelly relay, while all switching logic stays inside the relay and the Shelly app.<br><br>The plastic housing measures 70x70x12 mm and ships with one holder compatible with all Shelly Plus devices, plus Shelly 1, 1PM, 2PM, i4, Dimmer and DALI Dimmer in Gen3 and Shelly 1 and 1PM in Gen4. Maximum switching voltage is 12 VDC / 18 VAC at 50 mA, so it wires only to signal inputs, never to a load. It operates from -20 to 70 degrees C at up to 85% humidity, a fit for apartments and houses in Chisinau.

Delivery
Free from 1500 MDL
Returns
30 days to return
Warranty
24 months

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Where it works

Use cases

In a Chisinau living room one wall spot runs the ceiling light, sconces and two LED strips.

The four buttons drive SW inputs of Shelly relays for four lighting zones.

In the bedroom the up/down buttons physically control both windows without a phone.

Two button pairs raise and lower two blinds via Shelly roller-shutter relays.

On leaving home, one button turns off all lights and cuts non-essential sockets.

One button runs a pre-configured Shelly scene from the app.

For the installer

Technical specifications

full spec · wiring · datasheet

Physical

Buttons: 4
Type: Passive wall switch front (dry contact to relay SW input)
Material: Plastic
Colour: Black
Dimensions: 70x70x12 mm

Power

Max switching voltage: 12 VDC / 18 VAC
Max switching current: 50 mA

Environment

Operating temperature: -20 to 70 C
Humidity: up to 85 %

Connectivity

Compatibility: All Shelly Plus; Gen3 1/1PM/2PM/i4/Dimmer/DALI; Gen4 1/1PM

Full device datasheet

Support

Frequently asked questions

Do I need a separate Shelly relay?
Yes. Wall Switch 4 is passive: the buttons wire to the SW inputs of a Shelly Plus, Gen3 or Gen4 relay. Without a relay behind it, the buttons control nothing.
How many buttons does it have and what can they control?
It has four independent buttons. Use them for four lighting circuits, two blinds (two pairs) or scenes, depending on how you configure the relay inputs in the Shelly app.
Does it connect to 230 V?
No. The front does not connect to mains; it switches only a signal up to 12 VDC / 18 VAC at 50 mA to the relay input. The relay in the back box is what connects to 230 V.
Which Shelly devices is it compatible with?
The included holder is compatible with all Shelly Plus devices, with Shelly 1, 1PM, 2PM, i4, Dimmer and DALI Dimmer in Gen3 and with Shelly 1 and 1PM in Gen4.
What are the dimensions and material?
The housing is plastic and measures 70x70x12 mm without the holder, fitting standard switch consoles, including those with limited space.
Who should install it?
We recommend a qualified electrician, since the Shelly relay behind it goes into the back box and connects to 230 V. CasaSmart, as official importer and integrator, can handle installation.

Same category

Questions about this product?

A CasaSmart manager calls you within 1–2 working hours and answers anything — compatibility, install, alternatives.

+373 60 944 922

Updated: 18 June 2026· reviewed by CasaSmart Expert Team