Shelly Pro 3EM Switch Add-on

The Shelly Pro 3EM Switch Add-on is a galvanically isolated switch designed to expand the capabilities of the Shelly Pro 3EM device. Easily control electrical devices with greater flexibility and control over your consumption.

Designed for much lower loads than dedicated switches such as the Shelly Pro 1, the add-on can switch 2A 240V AC or 2A 30V DC.

Only compatible with Shelly Pro 3EM (not included).

Note: You may require a neutral wire to use this product. Please research the device and your home wiring (safely, see below) before purchasing.

⚠️Caution – Read Before Buying⚠️

• Before beginning the installation, please read this guide and any other documents accompanying the device carefully and completely
• Danger of electrocution. The mounting/installation of the device should be performed by a qualified person (electrician)
• Failure to follow the installation procedures could lead to malfunction, danger to your health and life, violation of the law or refusal of legal and/or commercial guarantee (if any)
• Allterco Robotics (makers of Shelly products) and Mann Enterprises LTD are not responsible for any loss or damage in case of incorrect installation or improper operation of this device due to failure to follow the user and safety instructions in the printed guide accompanying this product (also available in the resources section below)
• Do not connect the device to appliances exceeding the given max load.
• Use the device only with a power grid and appliances which comply with all applicable regulations. Short circuit in the power grid or any appliance connected to the device may damage the device.
• Before starting, wire check that the breakers are turned off and there is no voltage on their terminals. This can be done with a phase meter or multimeter. When you are sure that there is no voltage, you can start wiring the cables.

Shelly Pro Series

Enhanced with temperature, overpower, and overvoltage load protection, the Shelly Pro series is designed to be installed inside the breaker box (DIN). Allowing full smart automation with no additional cables or wiring, the Shelly Pro line is perfect for homes, offices, stores, businesses, and manufacturing facilities, as well as new buildings.

View our entire range of Shelly Pro and other professional home automation products.

Five-year manufacturer warranty

All Shelly Pro products carry a five-year manufacturer warranty.

This warranty covers any issues with the hardware or firmware that exist at the time of purchase or that appear within the warranty period. The warranty includes all parts of the hardware, such as the body, mechanics, and display (if applicable). However, it does not cover consumable items like batteries or accessories, as their lifespan depends on how much they are used.

Features

• Add-on for Shelly Pro 3EM
• Dry contacts
• Switch 2A 240V AC or 2A 30V DC
• LED indicators
• DIN-rail mountable

Specifications

Size (HxWxD)	94x19x69 ±0.5mm
Weight	20 ±1g
Mounting	DIN rail (attached to a Shelly Pro 3EM)
Screw terminal max torque	0.4 Nm / 4.43 lbin
Conductor cross section	0.5 to 2.5 mm 20 to 14 AWG (solid, stranded and bootlace lugs)
Conductor stripped length	6 to 7mm
Shell material	Plastic
Colour	White
Ambient temperature	-20 °C to 40 °C / -5 °F to 105 °F
Humidity	30 % to 70 % RH
Max. altitude	2000 m / 6562 ft
Power supply voltage AC	N/A
Power supply voltage DC	3.3V and 12V (from Shelly Pro 3EM device)
Power consumption	< 1 W
Internal-temperature sensor	Yes
Max switching voltage AC	240 V
Max switching voltage DC	30 V
Max switching current AC	2A
Max switching current DC	2A

Resources

• Shelly Product Documentation
• Printed User Guide (as found within the package)
• Components and APIs
• Declaration of Conformity
• Device Identification
  • Device name: Shelly Pro 3EM Switch Add-on
• EAN: 3800235268131

Handy Shelly Resources

• Shelly Cloud
• Shelly App
  • Apple App Store
  • Google Play
  • Huawei AppGallery
• Home Assistant Shelly Integration
• Shelly Community Forum
• Shelly Facebook Support Group
• Shelly Knowledgebase
• Shelly Device Finder (easy-to-use software to find Shelly devices in the local network)
• Shelly Developer API

Package Contents

• 1x Shelly Pro 3EM Switch Add On
• 1x User Guide

A Shelly Pro 3EM is required to use this device (not included)