Device identification
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Device name: Shelly 1PM Mini Gen4
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Device model: S4SW-001P8EU
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Device SSID: Shelly1PMMiniG4-XXXXXXXXXXXX
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BLE model ID: 0x1031
Short description
Shelly 1PM Mini Gen4 is a small form factor smart switch with power measurement, which allows remote control of electric appliances through a mobile phone, tablet, PC, or home automation system. It can work standalone in a local Wi-Fi network or it can also be operated through cloud home automation services. The device is an improved version of Shelly 1PM Mini Gen3 with with a more advanced processor and Zigbee connectivity.
Shelly 1PM Mini Gen4 can be accessed, controlled and monitored remotely from any place where the User has internet connectivity, as long as the device is connected to a Wi-Fi router and the Internet.
It can be retrofitted into standard electrical wall boxes, behind power sockets and light switches or other places with limited space.
Shelly 1PM Mini Gen4 has embedded Web Interface which can be used to monitor and control the device, as well as adjust its settings.
The device has multi-protocol wireless MCU which provide Zigbee and Bluetooth connectivity ensuring a secure connection.
This device is compatible with Matter.
Main features
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Smart Switch with Power Measurement: Acts as a smart switch with the added capability of measuring power consumption, allowing you to monitor the energy usage of connected appliances.
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Compact Design: Designed as a small form factor switch, making it suitable for retrofitting into standard electrical wall boxes, behind power sockets, light switches, or other confined spaces.
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Remote Control: Enables remote control of electric appliances via a mobile phone, tablet, PC, or home automation system.
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Local and Cloud Control: Can function independently in a local Wi-Fi network and can also be operated through cloud home automation services.
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Zigbee Connectivity: Zigbee is available for inclusion purposes, which may be useful during the setup process.
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Improved Processor: Upgraded with an improved processor and Zigbee connectivity for enhanced performance.
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Remote Access: Allows remote access, control, and monitoring from any location with internet connectivity, provided the device is connected to a Wi-Fi router and the internet.
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Embedded Web Interface: Features an embedded web interface for monitoring, control, and adjustment of settings.
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BLE Gateway: Bridge between your Shelly BLU devices and the wider Shelly ecosystem. It receives Bluetooth signals and sends them to the cloud or locally to another non-Bluetooth device.
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Zigbee Range extender for IoT devices: A Zigbee extender is employed to expand the reach of your Zigbee network by receiving your Zigbee signal, enhancing its strength, and then transmitting the enhanced signal over a wider area.
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Wi-Fi Range extender for IoT devices: A Wi-Fi extender is employed to expand the reach of your Wi-Fi network by receiving your current Wi-Fi signal, enhancing its strength, and then transmitting the enhanced signal over a wider area.
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Scripting: https://shelly-api-docs.shelly.cloud/gen2/ComponentsAndServices/Script
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Wide range of integrations: The device can be integrated with 3rd party home systems, documented HTTP API, MQTT(s), Web Hooks over HTTP and HTTPS, UDP
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KNX: Supports KNXnet/IP communication
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Schedules: Allows scheduling of complex operations to be executed in predefined time window. Users can specify time windows based on date, time of day, weekdays, hours, minutes and seconds.
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Virtual Components: https://shelly-api-docs.shelly.cloud/gen2/DynamicComponents/Virtual/
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KNX net/IP support: https://shelly-api-docs.shelly.cloud/gen2/Integrations/KNX/
Use cases
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Appliance Control: Use it to remotely control and automate the operation of various electric appliances such as lights, fans, or other devices.
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Power Monitoring: Monitor the power consumption of connected appliances in real-time. This is useful for understanding energy usage patterns and promoting energy efficiency.
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Home Automation: Integrate the Shelly 1PM Mini Gen4 into your home automation system to create custom scenes and schedules for your devices.
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Energy Efficiency: Leverage the power measurement feature to identify energy-hungry appliances and make informed decisions to improve overall energy efficiency in your home.
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Remote Monitoring: Keep an eye on your devices even when you're away from home. The remote access feature allows you to monitor and control connected appliances from anywhere with internet connectivity.
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Space-Constrained Installations: The compact design makes it suitable for retrofitting into standard electrical wall boxes, making it a good choice for installations with limited space.
Integrations
Amazon Alexa supported capabilities
Yes
Google Smart Home supported traits
Yes
Samsung SmartThings supported capabilities
Yes
Simplified internal schematics
Device electrical interfaces
Inputs
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1 switch/button input on screw terminal
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2 power supply inputs on screw terminals: N and L
Outputs
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1 relay output with power measurement on screw terminal
Connectivity
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Wi-Fi
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Bluetooth
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Zigbee
Safety functions
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Overheating protection
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Overvoltage protection
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Overcurrent protection
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Overpower protection
Supported load types
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Resistive (incandescent bulbs, heating devices)
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Capacitive (capacitor banks, electronic equipment, motor start capacitors)
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Inductive (LED light drivers, transformers, fans, refrigerators, air-conditioners)
User interface
Inputs
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One (Control) button
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Press and hold for 5 seconds to enable Device access point and Bluetooth connection.
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Press and hold for 10 seconds to factory reset the Device.
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Press the button 5 times to switch the Device from Matter (default) to Zigbee profile. The Device enters inclusion mode for 3 minutes. Include the Device following the instructions of your Zigbee home automation system.
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Press the button 3 times to restart the inclusion mode for another 3 minutes if you missed the previous 3-minute window.
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Outputs
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LED (monocolor) indication
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AP (Access Point) enabled and Wi-Fi disabled:
1 secondON/ 1 secondOFF -
Wi-Fi enabled, but not connected to a Wi-Fi network:
1 secondON/ 3 secondsOFF -
Connected to a Wi-Fi network:
ConstantlyON -
Cloud is enabled, but not connected:
1 secondON/5 secondsOFF -
Connected to Shelly Cloud:
ConstantlyON -
OTA (Over the Air Update):
½ secON/ ½ secondOFF -
Button pressed and held for 5 seconds:
½ secondON/ ½ secondOFF -
Button pressed and held for 10 seconds:
¼ secondON/ ¼ secondOFF
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The list above starts with the initial device status and the lowest priority. Every next state cancels the previous one.
Specifications
| Quantity | Value |
|---|---|
| Physical | |
| Size (HxWxD): | 29x34x16 ±0.5 mm / 1.34x1.11x0.63 ±0.02 inch |
| Weight: | 18 ±1 g / 0.63 ±0.04 oz |
| Screw terminals max torque: | 0.4 Nm / 3.5 lbin |
| Conductor cross section: | 0.5 to 4 mm² / 20 to 11 AWG (solid, stranded, and bootlace ferrules) |
| Conductor stripped length: | 6 to 7 mm / 0.24 to 0.28 in |
| Mounting: | Wall box |
| Shell material: | Plastic |
| Shell color: | Red, C-3%; M-100%; Y-70%; K-12% |
| Connectors color: | Grey (Mouse Grey) |
| Environmental | |
| Ambient working temperature: | -20 °C to 40 °C / -5 °F to 105 °F |
| Humidity: | 30 % to 70 % RH |
| Max. altitude: | 2000 m / 6562 ft |
| Electrical | |
| Power supply: | 110 - 240 V~ |
| Relay: | NO contact, 1-pole, µ contact |
| External protection: | Tripping characteristic B or C, |
| Output circuits ratings | |
| Max. switching voltage: | 240 V~ |
| Max. switching current: | 8A/240 V~ |
| Power measurement: | Yes |
| Voltage protection / Cutoff: | Yes |
| Current protection / Cutoff: | Yes |
| Max power protection / Cutoff: | Yes |
| Sensors, meters | |
| Internal-temperature sensor: | Yes |
| Radio | |
| Wi-Fi | |
| Protocol: | 802.11 b/g/n/ax |
| RF band: | 2412 - 2472 МHz |
| Max. RF power: | < 20 dBm |
| Range: | Up to 30 m / 100 ft indoors and 50 m / 160 ft outdoors |
| Bluetooth | |
| Protocol: | 5.0 |
| RF band: | 2402 - 2480 MHz |
| Max. RF power: | < 4 dBm |
| Range: | Up to 10 m / 33 ft indoors and 30 m / 100 ft outdoors |
| Zigbee | |
| Protocol: | 802.15.4 |
| RF bands: | 2400 to 2483.5 MHz |
| Max. RF power: | < 20 dBm |
| Range: | Up to 100 m / 328 ft indoors and 300 meters / 984 ft outdoors |
| Microcontroller unit | |
| CPU: | ESP-Shelly-C68F |
| Flash: | 8MB |
| Firmware capabilities | |
| Schedules: | 20 |
| Webhooks (URL actions): | 20 with 5 URLs per hook |
| Scripting: | Yes |
| MQTT: | Yes |
Basic wiring diagrams
Legend
| Terminals | Wires | ||
|---|---|---|---|
| SW | Switch (controlling O) input terminal | L | Live (110 - 240 V~) wire |
| O | Load circuit output terminal | N | Neutral wire |
| L | Live (110-240 V) terminal | | |
| N | Neutral terminal |
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Shelly Smart Control
Shelly Web user interface
Components and APIs
Compliance
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Shelly 1PM Mini Gen4 multilingual EU declaration of conformity 271 2026-03-13.pdf
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Shelly 1PM Mini Gen4 UK PSTI ACT statement of compliance 271 2026-03-13.pdf
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Shelly 1PM Mini Gen4 UKCA declaration of conformity 271 2026-03-13.pdf
