Shelly 1PM Gen4 Smart Relay with Power Monitoring & Matter Support
The Shelly 1PM Gen4 is a compact smart relay with integrated power metering, designed for intelligent control and monitoring of lights, appliances, and electrical devices. Supporting Wi-Fi, Zigbee, Bluetooth, and Matter, it delivers seamless integration with Apple HomeKit, Alexa, Google Home, Home Assistant, and Samsung SmartThings. With real-time energy tracking and advanced automation capabilities, this ultra-compact device fits behind standard wall switches and sockets, making it perfect for retrofitting existing electrical installations in homes and offices.
Key Features
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Multiprotocol Connectivity: Choose from Wi-Fi, Zigbee 3.0, Bluetooth 4.2, or Matter for maximum flexibility and compatibility
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Real-Time Power Monitoring: Track voltage, current, power consumption (watts), and energy usage (kWh) with precise built-in metering
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16A Switching Capacity: Rated for up to 16A at 240V AC (3680W max load) or 10A at 30V DC for versatile applications
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Wi-Fi & Zigbee Range Extender: Extends your network coverage while acting as a Bluetooth gateway for Shelly BLU sensors
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No Hub Required: Works standalone on your local Wi-Fi network or integrates with cloud home automation platforms
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Ultra-Compact Design: Measures just 37 × 42 × 16 mm (1.46 × 1.65 × 0.63 in) and weighs only 27g
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Matter Certified: Future-proof smart home compatibility with the latest universal standard
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Voice Assistant Support: Control via Alexa, Siri, Google Assistant, and more
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Advanced Automation: Supports schedules, scripting, webhooks, MQTT, WebSocket, KNXnet/IP, and TLS 1.2 encryption
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Overheating Protection: Internal temperature sensor provides safety monitoring and automatic shut-off
Smart Energy Management
The Shelly 1PM Gen4 empowers you to reduce electricity costs by monitoring real-time energy consumption and identifying power-hungry appliances. Set maximum power thresholds to automatically shut off devices when consumption exceeds safe limits. Schedule appliances to run during off-peak energy hours, and use power data to trigger automations such as notifications when your laundry is done or when abnormal consumption patterns indicate potential faults.
Versatile Smart Home Applications
Perfect for automating lighting, controlling water heaters and boilers, managing pumps and motors, and monitoring office equipment like printers and coffee machines. The potential-free switching design supports both AC and DC loads, making it suitable for a wide range of residential, commercial, and light industrial applications.
Easy Retrofit Installation
The Shelly 1PM Gen4's ultra-compact footprint allows it to fit into standard electrical wall boxes, behind power sockets, light switches, or within control panels. Robust terminal design supports 24-14 AWG wire and operates on a wide input voltage range of 110-240V AC or 24-30V DC, ensuring compatibility with diverse electrical installations worldwide.
Control Options
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Shelly Smart Control App: Full remote control and monitoring from iOS or Android devices
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Embedded Web Interface: Local configuration and control without internet dependency
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Voice Commands: Hands-free operation via Alexa, Siri, Google Assistant, and Samsung SmartThings
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Local & Cloud Control: Works independently on your Wi-Fi network or through cloud automation services
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API & Scripting: Advanced users can create custom automations with REST API, MQTT, and on-device scripting
What's in the Box
- Shelly 1PM Gen4 Smart Relay
- User Manual
Full Specifications
| Dimensions (H × W × D) |
37 × 42 × 16 mm (1.46 × 1.65 × 0.63 in) |
| Weight |
27 g (0.95 oz) |
| Switching Capacity |
16 A at 240 V AC / 10 A at 30 V DC |
| Maximum Load |
3680 W (AC) |
| Input Voltage Range |
110-240 V AC / 24-30 V DC |
| Wireless Protocols |
Wi-Fi (802.11 b/g/n), Zigbee 3.0, Bluetooth 4.2 (BLE), Matter |
| Wi-Fi Range |
Up to 100 m indoors / 300 m outdoors (depends on local conditions) |
| Power Monitoring |
Yes (Voltage, Current, Power, Energy) |
| Temperature Sensor |
Internal (overheating protection) |
| Range Extender |
Wi-Fi, Zigbee |
| Bluetooth Gateway |
Yes (BLE) |
| Voice Assistant Support |
Alexa, Siri, Google Assistant, Samsung SmartThings |
| Smart Home Platforms |
Apple HomeKit, Home Assistant, and more |
| Automation Features |
Schedules, Webhooks (20 with 5 URLs per hook), Scripting, MQTT, REST API, WebSocket, KNXnet/IP |
| Security |
TLS 1.2 Encryption |
| Wire Gauge Support |
24-14 AWG |
| Operating Environment |
Indoor installation (standard wall boxes, behind sockets/switches, control panels) |
| Warranty |
12 months (includes replacement even for wiring/usage errors) |
Specifications are sourced from the manufacturer product page and may be updated.
