Verified compatibility
We test every device for these ecosystems. For non-standard integrations contact us before ordering.
- Home Assistant
- Zigbee
- Matter
- KNX
- Wi-Fi
Compatibility
Works with these ecosystems
Protocols
- Wi-Fi
- BLE
Ecosystems
- Home Assistant
- Google Home
- Amazon Alexa
What it is, who it's for, what it does
About this product
Picture the gate at the end of your driveway: you want to open it from your phone on the way home, but you should not touch the gate controller's command voltage. That is exactly where the Shelly 1 Gen3 fits — a Wi-Fi relay with a single dry contact fully isolated from the switched circuit. Because the output is potential-free (16 A at 240 V AC or 10 A at 30 V DC), it switches 230 V lamps, a boiler, a pump, a 12 V doorbell or a gate-controller input equally well.<br><br>Gen3 runs on the new ESP-Shelly processor with 8 MB of memory and supports local scenes and scripts, schedules and control through Shelly Smart Control, Google Home, Amazon Alexa or Home Assistant. A separate input lets you keep your existing wall switch wired in: the physical key keeps working while Shelly layers remote control on top. The 42 x 37 x 16 mm body fits inside a back box or on a DIN rail in the panel.
- DeliveryFree from 1500 MDL
- Returns30 days to return
- Warranty24 months
15+projects delivered300+devices installed3 yearslocal-first experienceChișinăushowroom Columna 153Book a showroom visit →
CasaSmart essentials
What it works with, what it needs, what you can do
Install & requirements
What you need on your side and what we deliver.
- Zigbee hub or Matter gateway for wireless variants
- 65 mm back-box or DIN panel for wired variants
- Local setup on Home Assistant — included in install
Smart scenarios
Three typical automations we set up after the install.
- 01Morning: warm light + blinds up + climate at 22 °C
- 02Leaving: lights off, arm sensors, close the gas
- 03Evening: warm ambient + cinema scene
Where it works
Use cases
You open the gate from the car on your phone before reaching home.
The dry contact wires into the gate controller's command input, isolated from the power circuit.
You turn the heating on from your phone an hour before getting back to the flat.
The relay closes the boiler's thermostat input without powering it directly.
You switch the hallway light from bed or by voice, and still from the classic key.
A separate input keeps the wall switch working while Shelly adds remote control.
Analytics
See consumption — save on bills
Real-time consumption tracking via the eWeLink app. Daily, weekly and monthly history helps identify the most energy-hungry devices.
For the installerTechnical specificationsfull spec · wiring · datasheet
For the installer
Technical specifications
full spec · wiring · datasheet
Power
- Макс. коммутируемый ток
- 16 A
- Макс. коммутируемое напряжение (AC)
- 240 V~
- Макс. коммутируемое напряжение (DC)
- 30 V⎓
- Макс. ток при 30 В⎓
- 10 A
- Power
- 110-240 V~ / 24-48 V⎓ / 12 V⎓
- Power consumption
- < 1.2 W
- Тип контакта
- Сухой беспотенциальный (1 выход)
Wireless
- Wi-Fi
- 802.11 b/g/n, 2.4 ГГц
- Bluetooth
- 4.2 BLE
Connectivity
- Processor
- ESP-Shelly-C38F
- Память (Flash)
- 8 MB
Physical
- Габариты (Ш x В x Г)
- 42 x 37 x 16 mm
- Weight
- 26 g
Environment
- Operating temperature
- -20…+40 °C
Support
Frequently asked questions
What is a dry contact and why does it matter on the Shelly 1 Gen3?
A dry (potential-free) contact means the relay output carries no voltage of its own — it only opens or closes the circuit. That lets the Shelly 1 Gen3 switch loads of a different voltage (12 V, 24 V, 230 V) or command inputs while staying isolated from the power side.What current and maximum voltage does the relay handle?
The output is rated for 16 A at 240 V AC and 10 A at 30 V DC. For larger loads, drive a contactor from the Shelly.Does the Shelly 1 Gen3 measure energy consumption?
No. This model has no power metering (non-PM). If you need consumption monitoring, choose the Shelly 1PM Gen3 version.Does it need a neutral wire to install?
The relay itself must be powered (line and neutral, or DC supply), but the dry-contact output needs no neutral on the load side. In homes without a neutral in the back box, have an electrician do the wiring.Which smart-home systems is it compatible with?
With the Shelly Smart Control app, Google Home, Amazon Alexa, Samsung SmartThings and Home Assistant. It does not support Matter or Zigbee — it runs on Wi-Fi and Bluetooth.Can I keep my regular wall switch?
Yes. The separate input lets you wire in your existing switch: the key stays functional while Shelly adds remote control and scenes.
Manager guidance
Questions about this product?
A CasaSmart manager calls you within 1–2 working hours and answers anything — compatibility, install, alternatives.
+373 76 004 003Updated: · reviewed by CasaSmart Expert Team