Shelly 1 Gen4 ANZ

Device identification

• Device name: Shelly 1 Gen4
• Device model: S4SW-001X16EU
• Device SSID: Shelly1G4-XXXXXXXXXXXX
• Device Bluetooth ID: 0x1028

Short description

Shelly 1 Gen4 ANZ is a small form factor smart switch with potential-free contacts, 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.

Shelly 1 Gen4 ANZ 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 1 Gen4 ANZ has an 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 provides Zigbee and Bluetooth connectivity, ensuring a secure connection.

This device is compatible with Matter.

Main features

• Wi-Fi Connectivity: The device can connect to your home Wi-Fi network, allowing you to remotely monitor humidity and temperature data through a smartphone app or other compatible devices.
• Integration with Smart Home Platforms: You can integrate the Shelly 1 Gen4 ANZ with popular smart home platforms, including Google, Alexa, and Samsung SmartThings. This enables voice control and automation capabilities through these platforms.
• Local and Cloud Control: Can function independently in a local Wi-Fi network and can also be operated through cloud home automation services.
• Bluetooth Connectivity: Bluetooth and BLE gateways are available for inclusion purposes, which may be useful during the setup process.
• Zigbee Connectivity: Zigbee is available for inclusion purposes, which may be useful during the setup process.
• User-Friendly Interface: The device provides a user-friendly interface with a reset button for manual interactions.
• Improved Processor: Upgraded with an improved processor and support for Zigbee connectivity.
• Embedded Web Interface: Features an embedded web interface for monitoring, control, and adjustment of settings.
• Wireless Connectivity: The device supports Wi-Fi (802.11 b/g/n/ax) and Bluetooth 5.0 protocols with specified indoor and outdoor range capabilities.
• Dry Contact: The relay’s output do not carry any voltage or current from the relay itself—it’s electrically isolated. This means it’s volt-free or potential-free.
• 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.
• 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.
• 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.
• Scripting: Shelly Script Language Features
• 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
• 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.
• Virtual Components: Virtual Dynamic Components
• KNX net/IP support: KNX Integration Guide

Use cases

• Remote Appliance Control: Turn on or off electric appliances remotely using your mobile phone, tablet, PC, or home automation system.
• Internet-Connected Convenience: Access and control devices from anywhere with internet connectivity, as long as the Shelly 1 Gen4 ANZ is connected to a Wi-Fi router.
• Home Automation: Shelly 1 Gen4 ANZ enables automatic control of power appliances for more relaxing and enjoyable experience.

Home Automation Use Cases

Light Control

• Remote control of standard lights (LED, incandescent, halogen).
• Set timers or schedules for lights (e.g., porch lights on at sunset).
• Use with motion sensors (for example Shelly BLU Motion) for occupancy-based lighting.

Garage Door Automation

• Act as a smart trigger to open/close garage doors.
• Monitor door status with a sensor input (e.g., using Shelly Plus Add-on).
• Integrate with voice assistants for hands-free control.

Fan or Ventilation Control

• Automate bathroom or kitchen fans based on humidity sensors (like Shelly BLU H&T).
• Turn on ventilation during specific times of day or based on occupancy.

Heater or Towel Rail Switching

• Control electric towel warmers or heaters (Max. switching current: 16A).
• Schedule operation or link to temperature thresholds via sensors (like Shelly BLU H&T).

Commercial Applications

Lighting Automation in Small Offices or Shops

• Control light zones based on business hours.
• Use with motion detectors (e.g., Shelly BLU Motion) for energy savings.

Meeting Room Occupancy

• Enable or disable equipment like projectors depending on occupancy.

Security and Access Systems

• Remotely unlock gates or doors for deliveries.
• Monitor open/close state of access points.

Industrial/Utility Use Cases

Equipment Monitoring & Control

• Power cycling routers, modems, or network switches.

Pump or Motor Control

• Automate irrigation pumps in greenhouses or fields (Max. switching current: 16A).
• Remotely control valves (e.g., Shelly Add-On Mechanical Manipulator).

Main applications

• Residential
• MDU (Multi Dwelling Units – apartments, condominiums, hotels, etc.)
• Light commercial (small office buildings, small retail/restaurant/gas station, etc.)
• Government/municipal
• University/college

Simplified internal schematics

Device electrical interfaces

Inputs

• 1 switch/button input on screw terminal: SW
• 1 potential-free contacts relay input on screw terminal: I
• 2 power supply inputs on screw terminals: N and L

Outputs

• 1 potential-free contacts relay output on screw terminal: O

Add-on interface

• Shelly proprietary serial interface

⚠ CAUTION! High voltage on the add-on interface when the device is powered!

Connectivity

• Wi-Fi
• Bluetooth
• Zigbee
• Matter

Safety function

• Overheating protection

Supported load types

• Resistive (incandescent bulbs, heating appliances)
• Capacitive (capacitor banks, electronic equipment, motor starting capacitors)
• Inductive with RC Snubber (LED light drivers, transformers, fans, refrigerators, air-conditioners, washing machines, tumble dryers)

User interface

Inputs

• One (Control) button
  • Press and hold for 5 seconds to enable Device access point and Bluetooth connection.
  • Press and hold for 10 seconds to factory reset the device.
  • 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.
  • Press the button 3 times to restart the inclusion mode for another 3 minutes if you missed the previous 3-minute window.

Outputs

• LED (monocolor) indication
  • AP (Access Point) enabled and Wi-Fi disabled: 1 second ON / 1 second OFF
  • Wi-Fi enabled, but not connected to a Wi-Fi network: 1 second ON / 3 seconds OFF
  • Connected to a Wi-Fi network: Constantly ON
  • Cloud is enabled, but not connected: 1 second ON / 5 seconds OFF
  • Connected to Shelly Cloud: Constantly ON
  • OTA (Over the Air Update): ½ sec ON / ½ sec OFF
  • Button pressed and held for 5 seconds: ½ sec ON / ½ sec OFF
  • Button pressed and held for 10 seconds: ¼ sec ON / ¼ sec OFF

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)	37×42×16 mm / 1.46×1.65×0.63 inch
Weight	26 g / 0.92 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 console
Shell material	Plastic
Shell color	Blue
Terminals 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~
Power consumption	< 1 W
Neutral not needed	No
External protection	Cable protection switch in accordance with EN60898-1 (tripping characteristic B or C, max. 16 A rated current, min. 6 kA interrupting rating, energy limiting class 3)
Output circuits ratings
Max. switching voltage	240 V~
Max. switching current	16 A / 240 V~
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 / 100 ft indoors and 50 m / 160 ft outdoors (Depends on local conditions)
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 (Depends on local conditions)
Zigbee
Protocol	802.15.4
Zigbee repeater	Yes
RF bands	2400 to 2483.5 MHz
Max. RF power	< 20 dBm
Range	Up to 100 m / 328 ft indoors and 300 m / 984 ft outdoors (Depends on local conditions)
Microcontroller unit
CPU	ESP-Shelly-C68F
Flash	8 MB
Firmware capabilities
Schedules	20
Webhooks (URL actions)	20 with 5 URLs per hook
Scripting	Yes
MQTT	Yes

Basic wiring diagrams

Legend

Terminals	Description	Wires	Description
I	Load circuit input terminal	L	Live wire (110–240 V~)
O	Load circuit output terminal	N	Neutral wire
SW	Switch (controlling O) input terminal
L	Live terminal (110–240 V~)
N	Neutral terminal

Components and APIs

• This device
• All Shelly devices and services

Compliance

• Shelly 1 Gen4 multilingual EU declaration of conformity (2025-07-25)
• Shelly 1 Gen4 ANZ Certificate for Suitability

Printed user guide

Shelly 1 Gen4 ANZ printed user and safety guide