Shelly Plus 1

Device identification

Device name: Shelly Plus 1
Device model: SNSW-001X16EU
Device SSID: ShellyPlus1-XXXXXX

Short description

Shelly Plus 1 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 Plus 1 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 Plus 1 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

Google
Samsung SmartThings
Alexa

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 features

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 (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.

Outputs

LED (red) indication

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

Specifications

Type	Value
Physical
Size (HxWxD):	37x42x16 ±0.5 mm / 1.46x1.65x0.63 ±0.02 in
Weight:	26 g / 0.92 oz
Mounting:	Wall console
Screw terminals max torque:	0.4 Nm / 3.5 lbin
Conductor cross section:	0.5 to 1.5 mm² / 20 to 16 AWG
Conductor stripped length:	5 to 6 mm / 0.20 to 0.24 in
Shell material:	Plastic
Color:	Blue
Environmental
Ambient 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 VAC / 24 - 48 VDC / 12 VDC ±10%
Power consumption:	< 1.2 W
Output circuits ratings
Max switching voltage AC:	240 V
Max switching voltage DC:	30 V
Max switching current AC:	16 A
Max switching current DC:	10 A
Sensors, meters
Internal-temperature sensor:	Yes
Radio
RF band:	2400 - 2495 MHz
Max. RF power:	<20 dBm
Wi-Fi protocol:	802.11 b/g/n
Wi-Fi Range:	Up to 30 m / 100 ft indoors and 50 m / 160 ft outdoors (Depends on local conditions)
Bluetooth Protocol:	4.2
Bluetooth Range:	Up to 10 m / 33 ft indoors and 30 m / 100 ft outdoors (Depends on local conditions)
MCU
CPU:	ESP32-U4WDH
Flash:	4 MB
Firmware capabilities
Schedules:	20
Webhooks (URL actions):	20 with 5 URLs per hook
Scripting:	Yes
MQTT:	Yes
CoAP:	No

Basic wiring diagrams

Plus 1 AC wiring diagram-20240528-135400.png

110-240 VAC power supply

Resistive load

Plus 1 AC RC Snubber wiring diagram-20240528-135559.png

110-240 VAC power supply

Inductive load and RC snubber

Plus 1 DC wiring diagram-20240528-135114.png

24-48 VDC power supply

Resistive load

Plus 1 DC RC Snubber wiring diagram-20240530-093321.png

24-48 VDC power supply

Inductive load and RC snubber

Plus 1 12 V wiring diagram-20240528-135011.png

12 VDC stabilized power supply

Resistive load

Plus 1-12V-RC-Snubber-wiring-diagram.png

12 VDC stabilized power supply

Inductive load and RC snubber

Legend

Terminals		Wires
I	Load circuit input terminal	L	Live (110 - 240 VAC) wire
O	Load circuit output terminal	N	Neutral wire
SW	Switch (controlling O) input terminal	+	12 / 24 - 48 VDC positive wire
+12V	12 VDC positive terminal	GND	12 / 24 - 48 VDC ground wire
L	Live (110-240 VAC) terminal
N	Neutral terminal
+	24 - 48 VDC positive terminal
Ʇ	12 / 24 - 48 VDC ground terminal