Shelly Plus 1 - smart switch potential-free with contacts

Shelly Plus 1 - Smart Switch with Dry Contacts

Device identification

• Device name: Shelly Plus 1

• Device model: SNSW-001X16EU

• Device SSID: ShellyPlus1-XXXXXX

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Short description

Shelly Plus 1 is a compact smart switch with dry contacts that lets you control electrical appliances remotely from a smartphone, tablet, computer or home automation system.

The device can work standalone on a local Wi-Fi network or with cloud-based home automation services.

It can be installed in standard wall boxes, behind sockets or switches, or in other places where space is limited.

The device has a built-in web interface for monitoring, controlling and configuring it.

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Main applications

• Residential

• Multi-unit buildings (apartment blocks, hotels)

• Light commercial (offices, shops, restaurants, petrol stations)

• Government and municipal buildings

• Universities and colleges

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Integration

• Google

• Samsung SmartThings

• Amazon Alexa

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Electrical interfaces

Inputs:

• 1 switch/button input (SW)

• 1 dry contact input (I)

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

Outputs:

• 1 dry contact output (O)

Add-on interface:

• Shelly proprietary serial interface
  ⚠ Note: the add-on interface carries high voltage when the device is powered!

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Connectivity

• Wi-Fi

• Bluetooth

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Safety features

• Overheating protection

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Supported load types

• Resistive (incandescent bulbs, heaters)

• Capacitive (capacitors, electronics, motor start capacitors)

• Inductive with RC snubber (LED drivers, transformers, fans, fridges, air conditioners)

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User interface

Input:

• One control button

• Hold for 5 s: AP and Bluetooth connection

• Hold for 10 s: factory reset

Output:

• LED (red) indicator

• Different blink patterns depending on Wi-Fi and cloud connection status and OTA updates

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Physical specifications

• Size: 37x42x16 ±0.5 mm

• Weight: 26 g

• Mounting: wall box

• Max screw terminal torque: 0.4 Nm

• Wire cross-section: 0.5–1.5 mm²

• Wire stripping length: 5–6 mm

• Housing: plastic, blue

Environment:

• Operating temperature: -20…40 °C

• Humidity: 30–70% RH

• Max altitude: 2000 m

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Electrical specifications

• Power supply: 110–240 VAC / 24–48 VDC / 12 VDC ±10%

• Power consumption: <1.2 W

• Max AC voltage: 240 V

• Max DC voltage: 30 V

• Max AC current: 16 A

• Max DC current: 10 A

• Built-in temperature sensor: Yes

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Wireless connectivity

• Wi-Fi: 802.11 b/g/n, 2400–2495 MHz, <20 dBm, range 30 m indoors / 50 m outdoors

• Bluetooth: 4.2, range 10 m indoors / 30 m outdoors

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Microcontroller

• CPU: ESP32-U4WDH

• Flash: 4 MB

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Firmware capabilities

• Schedules: 20

• Webhooks: 20, 5 URLs per hook

• Scripting: Yes

• MQTT: Yes

• CoAP: No

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Wiring terminals (legend)

Terminal	Description
SW	Switch input
I	Dry contact input
N	Neutral
L	Live
12V	Stable 12 V power supply
O	Dry contact output

User manual: Shelly Plus 1 multilingual printed user and safety guide.pdf Manufacturer's website: Shelly Plus 1