Shelly 1PM Gen4 | Smart Wi-Fi & Matter Switch with Energy Metering

Meet the Shelly 1PM Gen4: a compact smart switch with integrated power measurement, and the powerful successor to the legendary 1PM Gen3. This compact powerhouse does everything you expect from a Shelly (smart appliances, switching, and measuring power consumption) but also takes it to a whole new level. Thanks to the new Gen4 architecture with a more powerful processor, more memory, and multi-protocol support, this is the most versatile and future-proof flush-mounted switch you can install.

The Gen4 Revolution: Wi-Fi, Matter, Bluetooth and Zigbee in one

The true power of the Shelly 1PM Gen4 lies in its unparalleled flexibility. For the first time, you're not limited by connectivity. This device supports all major protocols:

• Wi-Fi : Use it as you normally would, directly connected to your Wi-Fi network for maximum control and speed.
• Zigbee : Integrate it directly into your existing, stable Zigbee network.
• Matter (over Wi-Fi) : Be ready for the future of smart home. The 1PM Gen4 is fully Matter compatible.
• Bluetooth : Used for lightning-fast setup and functions as a BLE Gateway for your other Shelly BLU devices.
• Bluetooth Proxy for Home Assistant : Use the 1PM Gen4 as a stable Bluetooth proxy to significantly increase the range of your other Bluetooth devices (such as thermometers and sensors) in Home Assistant.

More than a Switch

• Powerful switching up to 16A : Switch on heavier appliances such as a boiler, electric heater or washing machine with confidence.
• Accurate Energy Metering : Get instant insight into the power consumption of connected appliances. Identify energy guzzlers, create smart automations (such as a "washing machine is finished" notification), or monitor standby power consumption.
• Additional Network Features : Use the 1PM Gen4 as a Wi-Fi booster (range extender) for your other Shelly IoT devices to improve coverage throughout your home.
• Built for Experts : Thanks to the new, powerful ESP-Shelly-C38F processor and its extensive scripting capabilities, advanced users can build the most complex, locally running automations.

Important: Connecting different devices

The Shelly 1PM Gen4 is suitable for various load types. It's crucial to know what you're connecting:

• Resistive (Ohm's) : Incandescent light bulbs, halogen lighting, electric heating.
• Capacitive : Most modern electronic equipment, such as computers and chargers.
• Inductive : LED lighting, transformers, fans, air conditioners and other devices with a motor or coil.

Caution! The inrush current from inductive loads can damage the relay. Always use an RC Snubber (sold separately) for these devices to absorb this current and ensure the lifespan of your module.

Practical application: the smart washing machine

Connect the Shelly 1PM Gen4 to the outlet of your "dumb" washing machine. In Home Assistant or the Shelly app, you can create a simple, yet incredibly convenient automation:

As soon as the Shelly 1PM Gen4's energy reading drops below 5 watts for more than 5 minutes, the system signals that the wash is finished. You'll receive an immediate notification on your phone. No more forgotten, stale laundry!

Technical specifications

• Model : Shelly 1PM Gen4
• Connectivity : Wi-Fi 802.11 b/g/n, Zigbee, Matter (over Wi-Fi), Bluetooth 4.2
• Power supply : 110-240V AC or 24-30V DC
• Maximum Switching Current : 16A (240V AC), 10A (30V DC)
• Features : Energy Metering, Temperature Sensor, BLE Gateway, Wi-Fi Range Extender, Scripting
• Integrations : MQTT(s), Web Hooks, UDP, KNX, Home Assistant, Homey, Google Home, Alexa, Apple Home, Samsung SmartThings
• Dimensions : 37 x 42 x 16 mm

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