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USER GUIDE

Legend

Left Side:

N

 - Neutral input (110-230V AC);

VA

 - Line input of Phase A (110-230V AC);

VB

 - Line input of Phase B (110-230V AC);

VC

 - Line input of Phase C (110-230V AC);

I

 - Line input for contactor control

O

 - Output for contactor control

Right Side:

IN- IN+

 Input for current transformer of 

Neutral*

IC- IC+

 Input for current transformer of 

Phase C

IB- IB+

  Input for current transformer of 

Phase B

IA- IA+

  Input for current transformer of 

Phase A

The Triple Phase WiFi Energy Meter, Shelly 3EM by Allterco Robotics is in-

tended to be mounted next to the breakers, in order to monitor the electric 

power through it, independent for each channel and heavy-duty contactor 

control. Shelly may work as a standalone Device or as an accessory to a 

home automation controller. Shelly 3EM can measure incomming and out-

going energy.

• 

Purpose of control: Operating

• 

Construction of control: Independently mounted

• 

Type 1.B Action

• 

Pollution Degree 2

• 

Impulse Voltage: 4000 V

Specification

• 

Power supply: 110-230V ±10% 50/60Hz AC

• 

Max measurement per channel: 120A/230V

• 

Relay Max Load: 10A/230V

• 

Complies with EU standards:

• 

RED 2014/53/EU

• 

LVD 2014/35/EU

• 

EMC 2004/108/WE

• 

RoHS2 2011/65/UE

• 

Working temperature: – 40°C up to 40°C

• 

Radio signal power: 1mW

• 

Radio protocol: WiFi 802.11 b/g/n

• 

Frequency: 2400 – 2500 MHz;

• 

Operational range (depending on local construction): 

• 

up to 50 m outdoors

• 

up to 30 m indoors

• 

Dimensions(HxWxL): 73 x 57 x 22 mm

• 

Electrical consumption: < 1 W

Energy Theft Detection

In order to have this feature available, you might need to update the firm

-

ware of your device. With an additional split core current transformer, con-

nected to the IN- IN+ terminal of Shelly 3EM, you may receive a notification, 

if there is any energy theft or leakage. Please follow the wiring diagrams on 

fig. 1 and 2, dependent on your application.

Introduction to Shelly

Shelly® is a family of innovative Devices, which allow remote control of 

electric appli-ances through mobile phone, PC or home automation system. 

Shelly® uses WiFi to connect to the devices controlling it. They can be in the 

same WiFi network or they can use remote access (through the Internet). 

Shelly® may work standalone, without being managed by a home automa-

tion controller, in the local WiFi network, as well as through a cloud service, 

from everywhere the User has Internet access. Shelly® has an integrated 

web server, through which the User may adjust, control and monitor the 

Device. Shelly® has two WiFi modes - access Point (AP) and Client mode 

(CM). To operate in Client Mode, a WiFi router must be located within the 

range of the Device. Shelly® devices can communicate directly with other 

WiFi devices through HTTP protocol. An API can be provided by the Manu-

facturer. Shelly® devices may be available for monitor and control even if 

the User is outside the range of the local WiFi network, as long as the WiFi 

router is connected to the Internet. The cloud function could be used, which 

is activated through the web server of the Device or through the settings 

in the Shelly Cloud mobile application. The User can register and access 

Shelly Cloud, using either Android or iOS mobile applications, or any internet 

browser and the web site: 

https://my.Shelly.cloud/

Technical Information

• 

Control through WiFi from a mobile phone, PC, automation system or any 

other Device supporting HTTP and/or UDP protocol.

• 

Microprocessor management.

CAUTION!

 Danger of electrocution. Mounting the Device to the power grid 

has to be performed with caution.

CAUTION!

 Do not allow children to play with the button/switch connected 

the Device. Keep the Devices for remote control of Shelly (mobile phones, 

tablets, PCs) away from children.

Installation Instructions

CAUTION!

 Danger of electrocution! The mounting/ installation of the De-

vice should be done by a qualified person (electrician).

CAUTION!

 Danger of electrocution! Do not connect the current transformer 

clamp to the Line, before wiring it to Shelly 3EM. Even if only the current 

transformer is connected, there might be high voltage accross its connec-

tion cables. 

CAUTION!

 Danger of electrocution. Even when the Device is turned off, it is 

possible to have voltage across its clamps. Every change in the connection 

of the clamps has to be done after ensuring all local power is powered off/

disconnected.

CAUTION!

 Do not connect the Device to appliances exceeding the given 

max load!

CAUTION!

 Connect the Device only in the way shown in these instructions. 

Any other method could cause damage and/or injury.

CAUTION!

 Before beginning the installation please read the accompanying 

documentation carefully and completely. Failure to follow recommended 

procedures could lead to malfunction, danger to your life or violation of the 

law. Allterco Robotics is not responsible for any loss or damage in case of 

incorrect installation or operation of this Device.

CAUTION!

 Use the Device only with power grid and appliances which com-

ply with all applicable regulations. Short circuit in the power grid or any 

appliance connected to the Device may damage the Device.

CAUTION!

 Connect the current transformers accordingly for each channel!

Each current transformer is marked and calibrated for the respective input 

of the Device.Any improper connection will lead to incorrect device mea-

surement and visualisation.

RECOMMENDATION

  Тhe  Device  may  be  connected  to  and  may  control 

electric circuits and appliances only if they comply with the respective 

standards and safety norms.

Initial Inclusion

Before installing/mounting the Device ensure that the grid is powered off 

(turned down breakers). Connect Shelly 3EM to the power grid and install it 

in the breakers box following the scheme that suites the desired purpose.

You may choose if you want to use Shelly with the Shelly Cloud mobile ap-

plication and Shelly Cloud service. You can also familiarize yourself with 

the instructions for Management and Control through the embedded Web 

interface.

Control your home with your voice

All Shelly devices are compatible with Amazon Echo and Google Home. 

Please see our step-by-step guide on:

https://shelly.cloud/compatibility/Alexa

https://shelly.cloud/compatibility/Assistant

The mobile application - Shelly cloud

Shelly Cloud gives you opportunity to control and adjust all Shelly® Devic-

es from anywhere in the world. You only need an internet connection and 

our mobile application, installed on your smartphone or tablet. To install 

the application please visit Google Play or App Store and install the Shelly 

Cloud app.

Registration

The first time you load the Shelly Cloud mobile app, you have to create an 

account which can manage all your Shelly® devices.

Forgotten Password

In case you forget or lose your password, just enter the e-mail address you 

have used in your registration. You will then receive instructions to change 

your password.

WARNING!

 Be careful when you type your e-mail address during the regis-

tration, as it will be used in case you forget your password. After register-

ing, create your first room (or rooms), where you are going to add and use 

your Shelly devices.

Shelly Cloud gives you opportunity to create scenes for automatic turning 

on or off of the Devices at predefined hours or based on other parameters 

like temperature, humidity, light etc. (with available sensor in Shelly Cloud). 

Shelly Cloud allows easy control and monitoring using a mobile phone, tab-

let or PC.

Device Inclusion

To add a new Shelly device, connect it to the power grid following the Instal-

lation Instructions included with the Device.

• 

Step 1 -

 After the installation of Shelly in the breakers boxand the power is 

turned on Shelly will create its own WiFi Access Point (AP).

WARNING!

 In case the Device has not created its own WiFi network with 

SSID like shellyem3-35FA58 check if you have connected Shelly correctly 

by the schemes described above. If you do not see an active WiFi network 

with SSID like shellyem3-35FA58, reset the Device. In order to reset the de-

vice, you will need physical access to it. On the front of the device, you will 

see a button. Press and hold it for 10 seconds. Shelly should return to AP 

Mode. If not, please repeat or contact our customer support at: 

support@

shelly.cloud

• 

Step 2

 - Choose “Add Device”. In order to add more Devices later, use the 

app menu at the top right corner of the main screen and click “Add Device”. 

Type the name (SSID) and password for the WiFi network, to which you want 

to add the Device.

• 

Step 3

 - WiFi network inclusion

If using 

iOS

 press the home button of your iPhone/iPad/iPod. Open Set-

tings > WiFi and connect to the WiFi network created by Shelly, e.g. shelly-

em3-35FA58.

If using 

Android

 your phone/tablet will automatically scan and include all 

new Shelly Devices in the WiFi network that you are connected to.

Upon successful Device Inclusion to the WiFi network you will see this pop-

up:

• 

Step 4

 - Approximately 30 seconds after discovery of any new Devices оn 

the local WiFi network, а list will be displayed by default in the “Discovered 

Devices” room.

A

B

C

N

N

N

Phase A

2 phase

breaker

Phase B

Phase N*

*Phase N is optional

and allows for detect

theft or energy leakage.

VA
VB
VC

I

O

breaker 0-220V AC or DC

2 phase (US) wiring

A

B

C

N

N

N

Phase A

3 phase

breaker

breaker 0-220V AC or DC

Phase B

Phase C

Phase N*

*Phase N is optional

and allows for detect

theft or energy leakage.

VA
VB
VC

I

O

3 phase wiring scheme

A

B

C

N

N

N

Public network

2 phase

breaker

Solar power

VA
VB
VC

I

O

breaker 0-220V AC or DC

1 phase + separate solar power

measurement wiring

A

B

C

N

N

N

Circuit 1

breaker

Circuit 2

Circuit 3

VA
VB
VC

I

O

breaker 0-220V AC or DC

1 phase wiring up to

3 different circuits

TRIPLE PHASE WIFI         ENERGY METER

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