Shelly 1 Mini Gen4 WiFi Zigbee Matter Smart Relay Switch 8A
The Shelly 1 Mini Gen4 is an ultra-compact smart relay switch that transforms ordinary lights and appliances into smart devices you can control from anywhere. With multiprotocol connectivity including Wi-Fi 6, Zigbee 3.0, Bluetooth 5.0, and Matter certification, this miniature powerhouse integrates seamlessly with Alexa, Google Home, Home Assistant, Samsung SmartThings, and virtually any smart home platform without requiring a hub. Perfect for Australian homes and businesses looking to retrofit existing switches, the Shelly 1 Mini Gen4 fits behind wall switches, power outlets, or inside junction boxes where space is at a premium.
Why Choose the Shelly 1 Mini Gen4?
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Ultra-Compact Design: At just 29 x 34 x 16 mm, it's one of the world's smallest smart relays, fitting in almost any wall box
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Multiprotocol Connectivity: Choose Wi-Fi 6, Zigbee 3.0, Bluetooth 5.0, or Matter for maximum flexibility
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No Hub Required: Connect directly to your Wi-Fi network and control via the Shelly Smart Control app
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8A Switching Power: Controls lights, fans, garage doors, and small appliances up to 8A at 240V AC or 5A at 30V DC
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Dry Contact Design: Potential-free relay output for safe, isolated switching of AC and DC loads
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Voice Control Ready: Works with Alexa, Google Assistant, and Siri for hands-free operation
Advanced Gen4 Platform Features
Built on Shelly's fourth-generation platform with an improved ESP32-C6 processor and 8MB memory, the 1 Mini Gen4 delivers faster performance, lower latency, and enhanced security with TLS 1.2 encryption. The Gen4 architecture supports advanced features like custom scripting (mJS), MQTT, REST API, webhooks, WebSocket, KNXnet/IP communication, and both cloud and local control for complete automation flexibility.
Flexible Installation Options
The Shelly 1 Mini Gen4 retrofits easily into standard electrical wall boxes, behind power sockets, light switches, ceiling roses, or anywhere space is limited. It supports both AC power (110-240V) and DC power (12-48V), making it compatible with a wide range of residential and commercial installations. The device works with resistive loads (incandescent bulbs, heaters), capacitive loads (electronic equipment), and inductive loads (LED drivers, fans, motors) when paired with an RC snubber.
Smart Automation & Scheduling
Create custom daily schedules, sunrise/sunset automations, and multi-device scenes through the Shelly Smart Control app. The built-in Zigbee repeater extends your Zigbee network range, while Bluetooth gateway functionality lets you integrate Shelly BLU wireless sensors. The embedded web interface provides direct local access for monitoring and configuration without relying on cloud services.
Safety & Protection
The Shelly 1 Mini Gen4 includes over-temperature protection to prevent overheating, and is designed for use with external cable protection (10A circuit breaker, characteristic B or C). Operating temperature range of -20°C to 40°C ensures reliable performance in Australian climates, from air-conditioned interiors to outdoor installations.
Universal Connectivity
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Wi-Fi: 802.11 b/g/n/ax (Wi-Fi 6), range up to 50m outdoors / 30m indoors
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Zigbee: 3.0 with repeater function
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Bluetooth: 5.0, range up to 30m outdoors / 10m indoors
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Matter: Certified for cross-platform compatibility
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Inputs: 1 switch/button input, 2 power supply inputs
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Outputs: 1 potential-free contact relay (dry contact, normally open)
What's in the Box
- 1 × Shelly 1 Mini Gen4 smart relay switch
- Multilingual printed user and safety guide
Full Specifications
Physical Dimensions
| Dimensions (H × W × D) |
29 × 34 × 16 mm ±0.5 mm |
| Weight |
19 g ±1 g |
| Screw Terminal Max Torque |
0.4 Nm / 3.5 lbf·in |
| Conductor Cross Section |
0.2 to 2.5 mm² / 24 to 14 AWG (solid, stranded, bootlace ferrules) |
| Conductor Stripped Length |
6 to 7 mm |
Electrical Specifications
| Power Supply AC |
110-240V AC ±10%, 50/60Hz |
| Power Supply DC |
12V, 24-48V DC |
| Max Switching Voltage |
240V AC, 30V DC |
| Max Switching Current |
8A at 240V AC, 5A at 30V DC |
| Max Total Power |
1840W (AC), 150W (DC) |
| Power Consumption |
< 1W |
| Relay Type |
Potential-free (dry contact), normally open |
Wireless Connectivity
| Wi-Fi Protocol |
802.11 b/g/n/ax (Wi-Fi 6) |
| Wi-Fi Range |
Up to 50m outdoors / 30m indoors (depending on construction) |
| Zigbee Protocol |
Zigbee 3.0 with repeater function |
| Bluetooth Protocol |
Bluetooth 5.0 (BLE gateway capable) |
| Bluetooth Range |
Up to 30m outdoors / 10m indoors (depending on construction) |
| Matter Support |
Yes, certified |
| Max RF Power |
< 20 dBm |
Platform & Integration
| Processor |
ESP-Shelly-C68F (ESP32-C6) |
| Memory |
8 MB |
| Control Methods |
Shelly Smart Control app, web interface, MQTT, REST API, webhooks, WebSocket, KNXnet/IP |
| Voice Assistants |
Amazon Alexa, Google Assistant, Siri (via HomeKit) |
| Smart Home Platforms |
Home Assistant, Samsung SmartThings, Apple HomeKit (Matter), and more |
| Scripting Support |
Yes, mJS scripting |
| Security |
TLS 1.2 encryption |
Environment & Protection
| Operating Temperature |
-20°C to 40°C / -5°F to 105°F |
| Over-Temperature Protection |
Yes |
| External Protection Required |
10A circuit breaker (characteristic B or C, 6kA interrupting rating, energy limiting class 3) |
Load Compatibility
| Resistive Loads |
Incandescent bulbs, halogen lights, heating appliances |
| Capacitive Loads |
Electronic equipment with capacitors |
| Inductive Loads |
LED drivers, transformers, fans, motors (requires RC snubber) |
Warranty & Compliance
| Warranty Period |
3 years |
| Certifications |
CE, UKCA, Matter certified |
| Model Number |
S4SW-001X8EU |
| EAN |
3800238070786 |
Specifications are sourced from the manufacturer product page and may be updated.
