Shelly 1 Gen3 Smart Relay Switch

WiFi & Bluetooth Controlled • 16A High Power • Compact Design

🔌 Key Features

Dual Connectivity

Built-in WiFi and Bluetooth for flexible control - no hub required. Control from anywhere via app or integrate with smart home systems.

Powerful Performance

Handles up to 16A at 240V with dry contact design. Perfect for lights, motors, and high-power appliances.

Advanced Safety

Built-in temperature sensor with overheating protection. Operates safely in -20°C to 40°C environments.

Ultra Compact

Tiny form factor (41mm x 36mm x 17mm) fits behind switches and in small junction boxes. Easy retrofit installation.

📊 Technical Specifications

Power Supply110-240V AC (Universal)
Max Switching Current16A at 240V
Max Switching Voltage240V AC
ConnectivityWiFi 2.4GHz + Bluetooth
CPUESP-Shelly-C38F with 8MB Flash
Temperature SensorInternal (with overheating protection)
Working Temperature-20°C to 40°C (-5°F to 105°F)
Power ConsumptionLess than 1.2W
Dimensions41 x 36 x 17mm (Compact)
Smart Features20 Schedules, Webhooks, MQTT, Scripting

📸 Product Images

Shelly 1 Gen3 Smart Switch OverviewSmart Home IntegrationCompact Size ComparisonInstallation ApplicationsTechnical SpecificationsWiring Diagram

❓ Frequently Asked Questions

Q: Does this require a neutral wire?

A: Yes, the Shelly 1 Gen3 requires both live and neutral wires for operation. It's designed for standard electrical installations.

Q: Can I control multiple devices?

A: Each unit controls one circuit. For multiple circuits, you can install multiple Shelly 1 Gen3 devices and control them all from the same app.

Q: What smart home systems does it work with?

A: Compatible with major platforms including Alexa, Google Home, and supports MQTT for custom integrations. No hub required for basic WiFi control.

Q: What's the maximum load it can handle?

A: Rated for 16A at 240V (3840W maximum). Suitable for most residential lighting and appliance circuits.

Q: Is professional installation required?

A: Basic electrical knowledge is recommended. If you're not comfortable working with mains voltage, please consult a licensed electrician.