Shelly 1PM Gen3 – 16A Wi-Fi Smart Relay with Power Monitoring

Description

Shelly 1PM Gen3 Smart Wi-Fi Relay with Real-Time Energy Monitoring

Take control of both your devices and electricity consumption with the Shelly 1PM Gen3, a compact, powerful single-channel smart relay with integrated real-time power and energy monitoring.

Designed for retrofit installations, the Shelly 1PM Gen3 fits behind many standard wall switches and sockets while providing advanced smart-home functionality without requiring a dedicated hub.

Connect directly to your 2.4GHz Wi-Fi network, control devices remotely, monitor electrical consumption, create schedules and automations, and integrate the relay with platforms such as Home Assistant, Google Home, Amazon Alexa and Matter-compatible ecosystems.

With support for loads up to 16A at 240V AC, the Shelly 1PM Gen3 is ideal for smart lighting, appliances, heaters, geysers, pumps and other electrical circuits where knowing exactly how much power is being used is just as important as being able to switch the device on and off.

---

Key Features & Benefits

⚡ Real-Time Energy & Power Monitoring

Know exactly how much electricity your connected device is using.

The built-in power meter provides real-time information including:

• Voltage
• Current
• Instantaneous power
• Energy consumption

Use this information to identify energy-hungry appliances, track usage patterns and create smarter automation based on actual power consumption.

For example, you can create automations that respond when a device starts or stops consuming power, making the Shelly 1PM Gen3 particularly useful for geyser monitoring, appliance monitoring and energy-management projects.

🔌 Powerful 16A Smart Relay

The Shelly 1PM Gen3 can switch loads of up to 16A at 240V AC, making it suitable for many household and commercial applications.

Ideal for controlling:

• Lights
• Fans
• Geysers
• Heaters
• Pumps
• Floor heating
• Appliances
• Water heating systems
• Other suitable electrical loads

The device also supports DC applications within its specified ratings.

🛡️ Built-In Power Protection

The Shelly 1PM Gen3 continuously monitors the electrical conditions of the connected circuit and provides configurable protection features.

Protection includes:

• Overpower protection
• Overcurrent protection
• Overvoltage protection
• Overtemperature protection

Set appropriate limits and allow the Shelly to automatically disconnect the load if configured thresholds are exceeded.

This provides an additional layer of protection while also making the device useful for energy management and load monitoring.

🌐 Wi-Fi – No Hub Required

Unlike Zigbee devices, the Shelly 1PM Gen3 connects directly to your existing 2.4GHz Wi-Fi network.

No dedicated Shelly hub is required.

Use the Shelly Smart Control app, web interface or your preferred smart-home platform to control and monitor the device.

The relay can also provide local control, allowing automation to continue operating within your network without every command needing to rely on an external cloud service.

🏠 Matter Ready

The Shelly 1PM Gen3 can be upgraded with compatible firmware to support Matter, making it easier to integrate the device into modern multi-platform smart homes.

Matter integration allows compatible smart-home platforms to discover and control supported Shelly devices, helping reduce dependence on a single manufacturer’s ecosystem.

Compatible platforms can include:

• Apple Home
• Google Home
• Amazon Alexa
• Samsung SmartThings
• Home Assistant
• Other Matter-compatible systems

Matter functionality depends on the installed firmware and supported features of the Matter platform.

🧠 Powerful Gen3 Hardware

The Shelly 1PM Gen3 is built around Shelly’s updated Gen3 hardware platform, featuring the ESP-Shelly-C38F processor and 8MB of flash memory.

This provides improved processing capacity for advanced automations, scripting and future firmware functionality.

📶 Wi-Fi + Bluetooth

The Shelly 1PM Gen3 includes both Wi-Fi and Bluetooth 4.2.

Bluetooth allows convenient device setup and can also be used as a gateway for compatible Shelly BLU devices.

The device also supports Wi-Fi range-extender functionality for supported applications.

🤖 Advanced Automation

The Shelly 1PM Gen3 isn’t limited to simple on/off control.

Create sophisticated automations using:

• Schedules
• Timers
• Scenes
• Local actions
• Webhooks
• MQTT
• HTTP/HTTPS
• WebSockets
• UDP
• TLS
• mJS scripting
• KNXnet/IP

This makes it suitable for everything from simple smart lighting to advanced Home Assistant and DIY automation projects.

📊 Energy Monitoring for Smarter Homes

One of the biggest advantages of the Shelly 1PM Gen3 is the ability to combine switching with energy data.

Instead of simply asking:

“Is the device on?”

you can also determine:

“How much power is it using?”

This opens up possibilities such as:

• Monitoring geyser electricity consumption
• Tracking appliance energy usage
• Identifying standby consumption
• Automatically switching loads based on consumption
• Creating energy-saving schedules
• Monitoring heating systems
• Tracking individual circuits
• Integrating consumption data into Home Assistant

For customers building an energy-conscious smart home, this makes the Shelly 1PM Gen3 considerably more useful than a conventional smart switch.

---

Ideal Applications

💡 Smart Lighting

Automate lights with schedules, scenes, timers and occupancy-based automation while monitoring their energy consumption.

🚿 Geyser & Water Heating Monitoring

Monitor the power consumption of a geyser or water-heating circuit and use the data to optimise heating schedules and reduce unnecessary electricity usage.

🔥 Heaters & Floor Heating

Control electric heaters and suitable heating circuits while monitoring how much energy they consume.

🏠 Appliance Monitoring

Track the electricity consumption of appliances such as washing machines, dishwashers, fridges and other suitable loads.

💧 Pumps

Automate and monitor suitable water, irrigation and circulation pumps.

🏡 Home Assistant & DIY Automation

The Shelly 1PM Gen3 is an excellent choice for advanced users who want local APIs, MQTT, scripting and detailed energy data for custom automation.

---

Compact Retrofit Design

Despite its advanced capabilities, the Shelly 1PM Gen3 measures just:

37 × 42 × 16 mm

Its compact design allows it to fit behind many existing wall switches, sockets and electrical equipment, making it an excellent choice for smart-home retrofits where installation space is limited.

---

Specifications at a Glance

---

Shelly 1PM Gen3 vs a Standard Smart Switch

A conventional smart switch gives you remote on/off control.

The Shelly 1PM Gen3 gives you much more:

Switch → Monitor → Measure → Automate → Optimise

With integrated power monitoring and extensive local automation capabilities, you can use real electrical consumption as part of your smart-home logic.

For example, a Home Assistant automation could monitor a geyser’s power consumption and notify you when heating has completed, or use historical consumption data to identify opportunities to reduce electricity usage.

---

Built for Flexible Smart-Home Integration

The Shelly 1PM Gen3 gives you the freedom to choose how you build your smart home.

Use the Shelly Smart Control app for straightforward control, integrate it with Home Assistant for advanced local automation, use MQTT for custom systems, or update the firmware for Matter compatibility.

This flexibility makes it suitable for both beginners and experienced smart-home enthusiasts.

---

Important Installation Information

The Shelly 1PM Gen3 requires a suitable power supply and neutral connection when powered from 110–240V AC.

Always ensure that the connected load is suitable for the relay’s rated capacity. Inductive loads such as motors, transformers and certain LED drivers may require additional protection.

Mains-voltage installation should be performed by a qualified electrician, and appropriate circuit protection should be provided in accordance with local electrical regulations.