Shelly Gen4 1-Channel WiFi/Bluetooth/Zigbee Smart Relay
Shelly 1 Gen4: Multiprotocol Smart Relay with Dry Contact
The Shelly 1 Gen4 allows you to automate and remotely control electrical circuits, lighting and appliances with resistive loads of up to 16 A at 240 V AC. Its compact design makes it easy to install behind conventional switches while retaining manual operation and adding smart control. It is a versatile solution for expanding residential and professional home automation systems.
This fourth generation features Wi-Fi 6, Zigbee 802.15.4 and Bluetooth 5, as well as Matter compatibility, providing greater flexibility for integration into different smart home ecosystems. Its multiprotocol connectivity is particularly useful for installers looking for a single relay adaptable to different automation projects and platforms. It can also operate as a Zigbee repeater and Bluetooth gateway for compatible devices.
One of its key features is the dry contact or potential-free output, allowing it to switch a circuit that is electrically isolated from the relay's own power supply. It can be powered by 110–240 V AC, 24–48 V DC or 12 V DC and supports loads of up to 16 A at 240 V AC or 10 A at 30 V DC. Suitable for both new installations and upgrades to existing systems, it can automate lighting, electrical appliances, garage doors and other compatible systems. It can also be combined with other smart relays according to the requirements of each installation.
In summary, the Shelly 1 Gen4 smart relay combines a dry contact, high switching capacity, multi-voltage power supply and multiprotocol connectivity in a compact 37 × 42 × 16 mm enclosure. It is particularly suitable for projects that need to make conventional electrical circuits smart while retaining manual control and providing integration possibilities with modern home automation ecosystems.
Reference: SH-1-GEN4
