Shelly 1PM Mini Gen4

Device Identification
- Device name: Shelly 1PM Mini Gen4
- Device model: S4SW-001P8EU
- Device SSID: Shelly1PMMiniG4-XXXXXXXXXXXX
- BLE model ID: 0x1031
Short Description
The Shelly 1PM Mini Gen4 is a compact smart switch with integrated power measurement, enabling remote control of electrical appliances via smartphone, tablet, PC, or home automation systems. It operates either standalone on a local Wi-Fi network or through cloud-based home automation services. This device is an enhanced version of the Shelly 1PM Mini Gen3, featuring a more advanced processor and added Zigbee connectivity.
Remote access, control, and monitoring are possible from any location with internet connectivity, provided the device is connected to a Wi-Fi router and the internet.
Designed for retrofitting into standard electrical wall boxes, behind power sockets, light switches, or other space-constrained locations, it offers flexible installation options.
The device includes an embedded web interface for configuration, monitoring, and management. Its multi-protocol wireless MCU supports both Zigbee and Bluetooth, ensuring secure and reliable connectivity. The Shelly 1PM Mini Gen4 is also Matter-compatible.
Main Features
- Smart Switch with Power Measurement: Functions as a smart switch with real-time power consumption monitoring for connected devices.
- Compact Design: Small form factor ideal for installations in confined spaces such as standard electrical wall boxes, behind outlets, or switches.
- Remote Control: Enables remote operation via mobile apps, web interfaces, or home automation platforms.
- Local and Cloud Operation: Supports standalone local control and integration with cloud-based automation services.
- Zigbee Connectivity: Available for device inclusion during setup and integration into larger Zigbee networks.
- Improved Processor: Enhanced performance thanks to upgraded hardware and support for Zigbee.
- Remote Access: Full remote access, control, and monitoring over the internet when connected to Wi-Fi.
- Embedded Web Interface: Built-in web interface for easy configuration, status viewing, and settings adjustment.
- BLE Gateway: Bridges Shelly BLU devices to the broader Shelly ecosystem by receiving Bluetooth signals and forwarding them to the cloud or local devices.
- Zigbee Range Extender: Expands the reach of your Zigbee network by receiving, amplifying, and retransmitting signals over wider areas.
- Wi-Fi Range Extender: Boosts Wi-Fi coverage by receiving, strengthening, and rebroadcasting the signal across extended distances.
- Scripting Support: Shelly Script Language Features
- Wide Integration Options: Compatible with third-party home systems using HTTP API, MQTT(s), Webhooks (HTTP/HTTPS), and UDP.
- KNX Support: Integrates via KNXnet/IP protocol.
KNX Documentation - Schedules: Supports complex scheduling based on date, time of day, weekdays, hours, minutes, and seconds.
- Virtual Components: Create virtual devices for advanced automation scenarios.
Virtual Components Guide - KNXnet/IP Integration: Full support for KNXnet/IP communication.
KNX Integration Reference
Use Cases
- Appliance Control: Automate lights, fans, heaters, and other electrical devices remotely.
- Power Monitoring: Track real-time energy usage of connected appliances to optimize consumption.
- Home Automation Integration: Incorporate into custom scenes, routines, and automated workflows within smart home systems.
- Energy Efficiency Optimization: Identify high-energy-consuming devices and take action to improve overall efficiency.
- Remote Monitoring & Control: Manage and monitor devices while away from home using internet-connected access.
- Space-Constrained Installations: Ideal for tight spaces due to its compact size and retrofit-friendly design.
Integrations
Amazon Alexa
Supported capabilities: Yes
Google Smart Home
Supported traits: Yes
Samsung SmartThings
Supported capabilities: Yes
Simplified Internal Schematics

Device Electrical Interfaces
Inputs
- 1 switch/button input on screw terminal
- 2 power supply inputs on screw terminals: N (Neutral) and L (Live)
Outputs
- 1 relay output with power measurement on screw terminal (O – Load Output)
Connectivity
- Wi-Fi
- Bluetooth (BLE 5.0)
- Zigbee (802.15.4)
Safety Functions
- Overheating protection
- Overvoltage protection
- Overcurrent protection
- Overpower protection
Supported Load Types
- Resistive (e.g., incandescent bulbs, heating elements)
- Capacitive (e.g., capacitor banks, electronic equipment, motor start capacitors)
- Inductive (e.g., LED drivers, transformers, fans, refrigerators, air conditioners)
User Interface
Inputs
One physical (Control) button:
- Press and hold for 5 seconds: Enables Device Access Point and Bluetooth pairing mode.
- Press and hold for 10 seconds: Performs factory reset.
- Press 5 times consecutively: Switches firmware from Matter (default) to Zigbee mode.
- Press 3 times consecutively: Enters Zigbee inclusion mode (active for 2 minutes). The device will appear in your Zigbee hub’s discovery list.
Outputs
Monochrome LED indicator with the following states:
- AP enabled, Wi-Fi disabled: 1 sec ON / 1 sec OFF
- Wi-Fi enabled but not connected: 1 sec ON / 3 sec OFF
- Connected to Wi-Fi network: Constantly ON
- Cloud enabled but not connected: 1 sec ON / 5 sec OFF
- Connected to Shelly Cloud: Constantly ON
- OTA update in progress: 0.5 sec ON / 0.5 sec OFF
- Button held for 5 seconds: 0.5 sec ON / 0.5 sec OFF
- Button held for 10 seconds: 0.25 sec ON / 0.25 sec OFF
Note: LED states are evaluated in order of priority — later states override earlier ones.
Specifications
| Quantity | Value |
|---|---|
| Physical | |
| Size (HxWxD) | 29 × 34 × 16 ±0.5 mm / 1.34 × 1.11 × 0.63 ±0.02 inch |
| Weight | 18 ±1 g / 0.63 ±0.04 oz |
| Screw terminal max torque | 0.4 Nm / 3.5 lbin |
| Conductor cross section | 0.2 to 2.5 mm² / 24 to 14 AWG (solid, stranded, 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 type | NO contact, 1-pole, µ contact | | External protection | Tripping characteristic B or C, max. 10 A rated current, min. 6 kA interrupting rating, energy limiting class 3 |
| Output Circuit Ratings | | | Max. switching voltage | 240 V~ | | Max. switching current | 8 A at 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 MHz | | Max. RF power | < 20 dBm | | Range | Up to 30 m indoors / 50 m outdoors (varies by environment) |
| Bluetooth | | | Protocol | BLE 5.0 | | RF band | 2402 – 2480 MHz | | Max. RF power | < 4 dBm | | Range | Up to 10 m indoors / 30 m outdoors (varies by environment) |
| Zigbee | | | Protocol | 802.15.4 | | RF bands | 2400 – 2483.5 MHz | | Max. RF power | < 20 dBm | | Range | Up to 100 m indoors / 300 m outdoors (varies by environment) |
| Microcontroller Unit | | | CPU | ESP-Shelly-C68F | | Flash | 8 MB |
| Firmware Capabilities | | | Schedules | 20 | | Webhooks (URL actions) | 20 total, up to 5 URLs per webhook | | Scripting | Yes | | MQTT | Yes |
Basic Wiring Diagrams

Legend
Terminals
- SW: Switch input terminal (controls the output O)
- L: Live wire (110–240 V~)
- O: Load circuit output terminal
- N: Neutral wire
Wires
- L: Live terminal (110–240 V)
- N: Neutral terminal
Shelly Smart Control
Shelly Web User Interface
Components and APIs
Compliance
- Multilingual EU Declaration of Conformity (2025-07-21)
- UK PSTI ACT Statement of Compliance
- Compliance Archive – EU DoC (2025-03-14)
Printed User Guide
Installation Guides
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