Shelly 1 Gen4 dry-contact smart relay
Shelly 1 Gen4 dry-contact smart relay
The Shelly 1 Gen4 is the new generation of a compact wireless smart relay with a dry-contact output: the output circuit is isolated from the input circuit, so it can switch 0 to 220 V AC/DC regardless of its own supply voltage. It is designed to control a single lighting circuit, a water heater, a bathroom heater, an air conditioner, an electric gate, outlets, a radiator, irrigation valves or any electrical device up to 16 A.
It works with a range of supply voltages, as listed in the specifications.
The Shelly 1 Gen4 is small enough to fit behind a standard switch, inside a light fixture or in a junction box. The switch keeps working as usual, while the Shelly adds a full range of smart home capabilities, making it just as useful at home and in the office as in industrial settings.
The Gen4 model adds Bluetooth, a more powerful processor, Matter and Zigbee support and advanced software options for developers.
More information
Video tutorials
Official Shelly videos
Features
Wiring the Shelly 1 to a water heater
Wiring the Shelly 1 as a DC dry contact (1)
Wiring the Shelly 1 as a dry contact
Wiring the Shelly 1 for 12 V DC
Wiring the Shelly 1 to control an outlet
Wiring the Shelly 1 with a two-way switch
Wiring the Shelly 1 to a lighting circuit
Who it’s for
A dry-contact smart relay that fits behind your existing switch, for any circuit up to 16 A: lighting, a water heater, an air conditioner, an outlet, an electric gate or an irrigation valve. Because the contact is dry, it can also switch a circuit at a different voltage, such as 12 V or 24 V. If you also want to see how much the circuit uses, choose the Shelly 1PM Gen4. All models are in the smart relay category.
Before you install
- Requires a neutral wire in the wall box (for homes without a neutral, see the Shelly 1L Gen3).
- Fits in a standard 55 mm wall box behind the switch, and your existing switch keeps working.
- Up to 16 A. Power supply: 110 to 240 V AC, or 12 V / 24 to 60 V DC.
- Wi-Fi, Zigbee and Matter.
FAQ
How is it different from the Shelly 1 Gen3?
Gen4 adds Zigbee and Wi-Fi 6, so it also connects to Zigbee hubs and to systems that support Matter. Wiring and operation are the same. See the Shelly 1 Gen3.
Can it open an electric gate?
Yes. The dry contact “presses” the input of the gate controller.
Can it work as a Shabbat timer?
Yes. Schedules are stored on the device and run even without internet. See smart Shabbat timers.
תאורה, שער או 12V
- 1O · I
מגע יבש של הממסר: סוגר בין O ל-I. לתאורה מחברים פאזה ל-I, ולבקר שער או כל מערכת עם כניסת לחצן מחברים את שניהם במקום הלחצן. עד 16A.
- 2SW
כניסה למפסק או ללחצן. ב-230V מקבלת פאזה, ב-12V⎓ מקבלת מינוס.
- 3L · N
הזנה 230V: פאזה ואפס. בהזנה של 24 עד 48V⎓: מינוס ל-L ופלוס ל-N.
- 412V
הזנה מ-12V⎓: פלוס ל-12V, מינוס ל-L.
We recommend installation by a licensed electrician, after switching off the circuit breaker.