Shelly 2PM

Device identification

  • Device name: Shelly Plus 2PM

  • Device model: SNSW-002P16EU

  • Device SSID: ShellyPlus2PM-XXXXXX

Short description

Shelly Plus 2PM is a small form factor 2-channel smart relay with power measurement and cover control, 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 2PM 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 2PM has an 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

  • Alexa

Simplified internal schematics

Shelly Plus 2PM internal schematics

Device electrical interfaces

Inputs

  • 2 switch/button input on screw terminal

  • 3 power supply inputs on screw terminals: 1 N (+) and 2 L (Ʇ)

Outputs

  • 2 relay outputs with power measurement on screw terminal

Addon interface

  • Shelly proprietary serial interface

Skelly Plus 1PM addon interface

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

Connectivity

  • Wi-Fi

  • Bluetooth (for inclusion purposes)

Safety features

  • Overheating protection

  • Overvoltage protection

  • Overcurrent protection

  • Overpower protection

  • Obstacle detection (cover mode)

  • Safety switch (cover mode)

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 (Red) 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 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 presses 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

Type

Value

Physical

Size (HxWxD):

37x42x16 ±0.5 mm / 1.46x1.65x0.63 ±0.02 in

Weight:

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:

Black

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 VDC ±10%

Power consumption:

< 1.4 W

Output circuits ratings

Max switching voltage AC:

240 V

Max switching voltage DC:

30 V

Max switching current AC:

10 A (per channel), 16 A (total), 18 A (total peak)

Max switching current DC:

10 A

Sensors, meters

Temperature sensor:

Yes

Voltmeter (AC)

Yes

Ammeter (AC)

Yes

Radio

Wi-Fi

Protocol:

802.11 b/g/n

Frequency:

2412 - 2472 МHz; (Max. 2495 MHz)

Max. RF output power:

12.28 dBm

Range:

Up to 30 m / 100 ft indoors and 50 m / 160 ft outdoors
(Depends on local conditions)

Bluetooth

Protocol:

BLE 4.1

Frequency:

2402 - 2480 MHz (Max. 2483.5 MHz)

Max. RF output power:

3.45 dBm

Range:

Up to 10 m / 33 ft indoors and 30 m / 100 ft outdoors
(Depends on local conditions)

MCU

CPU:

ESP32

Flash:

4 MB

Firmware capabilities

Schedules:

20

Webhooks (URL actions):

20 with 5 URLs per hook

Scripting:

mJS

MQTT:

Yes

CoAP:

No

Basic wiring diagram

Shelly Plus 2PM AC wiring

Shelly Plus 2PM AC wiring

Shelly Plus 2PM DC wiring

Shelly Plus 2PM DC wiring

Shelly Plus 2PM cover control wiring
a) Detached mode | b) Single button mode | c) Single button and safety switch mode
d) Single switch mode | e) Single switch and safety switch mode
f) Two buttons mode | g) Two switches mode

Legend

Terminals

Cables

N

Neutral terminal

N

Neutral cable

L

Live (110-240 V) terminal

L

Live (110 - 240 VAC) cable

O1, O2

Load circuit output terminals

+

24 VDC positive cable

SW1, SW2

Switch input terminals

-

24 VDC negative cable

+

24 VDC positive terminal

24 VDC negative terminal

Troubleshooting

...

Web Interface guide

Read the Shelly Plus 2PM web interface guide

Components and APIs

Printed User Guide

Printed user guide - English, Deutsch, Italiano, Español, Português, Français

Compliance

EU Declaration of conformity

EU-Konformitätserklärung

ЕС-Декларацията за съответствие

Installation guides