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