Shelly 1 Gen3
Shelly 1 Gen3 is a single-channel Wi-Fi smart relay with dry (potential-free) contacts, designed to control electrical appliances and automation systems while allowing independent voltage switching. With support for both AC and DC power, it is suitable for lighting circuits, sockets, garage doors, gates, irrigation systems, boilers, and contactor control.
Powered by the Shelly Gen3 platform with an ESP processor and 8 MB memory, Shelly 1 Gen3 provides faster response times, improved reliability, and expanded integration capabilities. The device connects directly to Wi-Fi without requiring a hub and includes Bluetooth for quick onboarding and Bluetooth gateway functionality.
Its compact in-wall form factor allows installation behind switches or inside electrical enclosures, while the dry-contact relay enables safe switching of different voltage sources independent of the device’s power supply.
Key Features
Use Cases
What’s Included
Technical Specifications
Power
Power Supply (DC): 24–48 V DC or 12 V DC (stabilized)
Power Consumption: < 1.2 W
Switching
Max Switching Voltage (DC): 30 V DC
Max Switching Current (AC): 16 A
Max Switching Current (DC): 10 A
Features
Dry Contacts: Yes
Power Measurement: No
Overload Protection: No
Device Temperature Protection: Yes
Roller Shutter Mode: No
Custom Scripts (mJS): Yes
HTTP / HTTPS Webhooks: Yes
Connectivity
Wi-Fi Range: Up to 50 m outdoors, up to 30 m indoors
Bluetooth: Yes
Bluetooth Protocol: 4.2
Bluetooth Range: Up to 30 m outdoors, up to 10 m indoors
Environmental
Humidity: 30–70% RH