Shelly 1PM Mini Gen4 – smart switch power consumption with measurement

Shelly 1PM Mini Gen4 – Smart Switch with Power Metering

Device identification

• Device name: Shelly 1PM Mini Gen4

• Device model: S4SW-001P8EU

• Device SSID: Shelly1PMMiniG4-XXXXXXXXXXXX

• BLE model ID: 0x1031

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Short description

The Shelly 1PM Mini Gen4 is a compact smart switch with power metering that lets you control electrical appliances from a smartphone, tablet, PC or home automation system. The device can be used standalone on a local Wi-Fi network or through cloud-based home automation services.

It is an upgraded version of the Shelly 1PM Mini Gen3, with a more powerful processor and Zigbee connectivity.

When connected to a Wi-Fi router, the device can be accessed, controlled and monitored from anywhere with an internet connection.

The device can be installed in standard wall boxes, behind sockets or switches, or in other tight spaces.

The Shelly 1PM Mini Gen4 has a built-in web interface for monitoring, controlling and configuring the device. It uses a multi-protocol wireless MCU that supports Zigbee and Bluetooth for secure communication.

The device is compatible with the Matter protocol.

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Key features

• Smart switch with power meter: monitors power consumption and lets you analyse the energy use of your appliances.

• Compact design: suitable for retrofit installation in standard wall boxes or tight spaces.

• Remote control: control via smartphone, tablet, PC or home automation system.

• Local and cloud control: works on the local network or via a cloud service.

• Zigbee connectivity: useful during setup.

• Upgraded processor and Zigbee: better performance.

• Remote access: control and monitoring from anywhere with an internet connection.

• Built-in web interface: device monitoring and control.

• BLE Gateway: bridges Shelly BLU devices to the Shelly ecosystem.

• Zigbee and Wi-Fi range extender: extends network coverage and signal strength.

• Scripting: ShellyScript

• Extensive integration: HTTP API, MQTT(s), WebHooks, UDP.

• KNX support: KNXnet/IP communication.

• Schedules and virtual components: Virtual components

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Applications

• Remote control and automation of electrical appliances (lights, fans, etc.).

• Real-time power consumption monitoring to improve energy efficiency.

• Home automation integration and custom scenes.

• Retrofit installation in tight spaces.

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Integration

• Amazon Alexa: Yes

• Google Smart Home: Yes

• Samsung SmartThings: Yes

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Electrical interfaces

Inputs:

• 1 switch/button input on screw terminal

• 2 power inputs (N and L) on screw terminals

Outputs:

• 1 relay output with power metering on screw terminal

Connectivity: Wi-Fi, Bluetooth, Zigbee

Safety features:

• Overheating protection

• Overvoltage protection

• Overload protection

• Maximum power protection

Supported load types: resistive, capacitive, inductive

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User interface

• Inputs: one control button

  • Hold for 5 s to enable the device Access Point and Bluetooth

  • Hold for 10 s to restore factory settings

  • Press 5 times: switches from Matter firmware to Zigbee

  • Press 3 times: Zigbee pairing mode (lasts 2 minutes)

• Outputs: LED indicator

  • Blink patterns indicating Wi-Fi, cloud and button activity

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Physical specifications

• Size: 29x34x16 mm

• Weight: 18 g

• Max screw terminal torque: 0.4 Nm

• Wire cross-section: 0.2–2.5 mm²

Environment:

• Operating temperature: -20 °C … 40 °C

• Humidity: 30–70 % RH

• Max altitude: 2000 m

Electrical specifications:

• Supply voltage: 110–240 V~

• Relay: NO contact, single terminal

• Max load: 8 A/240 V~

• Power metering: Yes

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Wireless connectivity

• Wi-Fi: 802.11 b/g/n/ax, 2412–2472 MHz, max 20 dBm, range up to 30 m indoors, 50 m outdoors

• Bluetooth: 5.0, 2402–2480 MHz, max 4 dBm, range up to 10 m indoors, 30 m outdoors

• Zigbee: 802.15.4, 2400–2483.5 MHz, max 20 dBm, range up to 100 m indoors, 300 m outdoors

Microcontroller: ESP-Shelly-C68F, Flash 8 MB

Firmware features: schedules, webhooks, scripting, MQTT

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Main wiring terminals

Terminal	Wire	Description
SW	-	Switch/button input
L	-	Live (110–240 V~)
O	-	Load output
N	-	Neutral
L	-	Live input
N	-	Neutral

User manual: Shelly 1PM Mini Gen4 Manufacturer's website: Shelly 1PM Mini Gen4