Shelly Plus 1 UL

Device identification

• Device name: Shelly Plus 1 UL

• Device model: SNSW-001X15UL

• Device SSID: ShellyPlus1-XXXXXX

Short description

The Shelly Plus 1 UL is a UL-certified 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.

The Shelly Plus 1 UL 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.

The Shelly Plus 1 UL has embedded Web Interface which can be used to monitor and control the device, as well as adjust its settings.

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

Integrations

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

• 3 power supply inputs on screw terminals: N (+), L (Ʇ) and 12V

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

Safety functions

• Overheating protection

Supported load types

• Resistive (incandescent bulbs, heating devices)

• Capacitive (capacitor banks, electronic equipment, motor start capacitors)

• Inductive with RC Snubber (LED light drivers, transformers, fans, refrigerators, air-conditioners)

User interface

Inputs

• One (Reset) 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.

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 second OFF

  • Button pressed and held for 5 seconds:
    ½ second ON / ½ second OFF

  • Button pressed and held for 10 seconds:
    ¼ second ON / ¼ second OFF

The list above starts with the initial device status and the lowest priority. Every next state cancels the previous one.

Specifications

Basic wiring diagrams

110-240 VAC power supply Resistive load	110-240 VAC power supply Inductive load and RC snubber
24-48 VDC power supply Resistive load	24-48 VDC power supply Inductive load and RC snubber
12 VDC stabilized power supply Resistive load	12 VDC stabilized power supply Inductive load and RC snubber

Legend

Supported load types

• Resistive (incandescent bulbs, heating devices)

• Capacitive (capacitor banks, electronic equipment, motor start capacitors)

• Inductive with RC Snubber (LED light drivers, transformers, fans, refrigerators, air-conditioners)

Web Interface guide

Read the Shelly Plus 1, Plus 1 UL web interface guide

Components and APIs

• This device

• All Shelly devices and services

Printed user guide

Shelly Plus 1 UL bilingual user and safety guide.pdf