Shelly S3SW-001X8EU 1 Mini Gen3 WiFi Smart Relay 8A Potential-Free Contact

The Shelly S3SW-001X8EU (Shelly 1 Mini Gen3) is a small form factor Wi-Fi and Bluetooth smart relay with a potential-free (dry contact) output that switches up to 8 A at 240 V AC. It fits in standard wall boxes, behind sockets and light switches, and controls lights and appliances locally or remotely through the Shelly Smart Control app, its built-in web interface or a home automation system. Technical specifications: Manufacturer: Shelly Europe Ltd. Device model: S3SW-001X8EU Device name: Shelly 1 Mini Gen3 EAN: 3800235261576 Series: Shelly Mini Gen3 Product type: Wi-Fi smart relay switch, potential-free contact Power supply: 110 - 240 V AC, 50/60 Hz Power consumption: below 1.2 W Relay: 1 dry NO contact, 1-pole Max switching current: 8 A at 240 V AC, 5 A at 30 V DC Max output power: 2000 W at 240 V AC, 150 W at 30 V DC Inputs: 1 switch/button input (SW) Supported loads: resistive, capacitive and inductive Safety function: overheating protection, internal temperature sensor External protection required: B or C curve circuit breaker, max. 10 A, min. 6 kA, energy limiting class 3 Wi-Fi: 802.11 b/g/n, range up to 30 m indoors and 50 m outdoors Bluetooth: 4.2, range up to 10 m indoors and 30 m outdoors Conductor cross-section: 0.5 - 4 mm² (solid, stranded or with ferrules) Terminal max torque: 0.4 Nm Mounting: wall box Dimensions (H x W x D): 29 x 34 x 16 mm Weight: 19 g Ambient working temperature: -20 °C to 40 °C Humidity: 30 % to 70 % RH Max. altitude: 2000 m CPU and flash: ESP-Shelly-C38F, 8 MB Control and ecosystems: Shelly Smart Control app, embedded web interface, Amazon Alexa, Google Home, Samsung SmartThings Features and benefits: Potential-free contacts can switch mains loads or separate low voltage circuits such as gate or boiler control inputs Very small 29 x 34 x 16 mm body fits behind an existing switch or socket Works standalone on the local Wi-Fi network as well as through cloud services Scripting, 20 schedules, webhooks, MQTT and HTTP API for advanced automation Can act as a BLE gateway for Shelly BLU devices and as a Wi-Fi range extender for other Shelly devices Applications: Retrofitting smart control behind existing light switches Remote switching of appliances, heaters and pumps Dry contact control of garage doors, gates and boiler thermostat inputs Home automation projects using MQTT or HTTP integration Declared compliant by Shelly Europe Ltd. with Directives 2014/53/EU, 2014/35/EU, 2014/30/EU and 2011/65/EU. Also known as: Shelly 1 Mini Gen3, Shelly Mini 1 Gen3, Shelly S3SW-001X8EU, Shelly mini WiFi relay dry contact, Shelly 1 Mini Gen 3 smart switch