Shelly 1 Gen4
Shelly 1 Gen4 is a compact single-channel smart relay with potential-free (dry contact) output, designed for controlling a wide range of electrical systems up to 16 A. The dry contact design allows safe switching of both low-voltage and mains circuits, making it suitable for applications such as gates, garage doors, boilers, lighting circuits, and contactor control where voltage isolation is required.
As part of the Shelly Gen4 platform, it supports Wi-Fi, Zigbee, Bluetooth, and Matter connectivity, allowing flexible deployment in both hub-free installations and larger smart home systems. Its compact form factor enables easy installation behind wall switches or inside electrical enclosures, while the upgraded processor delivers faster response times, improved reliability, and smooth automation performance.
Key Features
Use Cases
What’s Included
Technical Specifications
Power
Power Supply (DC): 24–48 V DC / 12 V DC (stabilized)
Power Consumption: < 1 W
Switching
Max Switching Current: 16 A (AC) / 10 A (DC)
Dry Contacts (Potential-Free): Yes
Features
Device Temperature Protection: Yes
Overload Protection: No
Roller Shutter Mode: No
Connectivity – Wi-Fi
Range: Up to 30 m indoors, up to 50 m outdoors
Connectivity – Zigbee
Repeater Function: Yes
Range: Up to 100 m indoors, up to 300 m outdoors
Connectivity – Bluetooth
Range: Up to 10 m indoors, up to 30 m outdoors