SHELLY SHELLY DIMMER Instructions

Smart WiFi Dimmer Switch

L

L

L

L

USER GUIDE

LEGEND:
SW1 - Switch input 1 for on/off/dimming
SW2 - Switch input 2 for on/off/dimming
O

-

Output

L - Line input (110-240V)
N - Neutral input (Zero)

The Shelly® smart WiFi dimmer by Allterco Robotics is intended
to be installed directly to your lights in order to control and dim
the light. It is intended to be mounted into a standard in-wall con­sole, behind the light switches or other places with limited space.
Shelly may work as a standalone device or as an accessory to a
home automation controller.

SHELLY DIMMER CANNOT BE CONNECTED AND OPERATE A
FAN. DOING SO MAY CAUSE DAMAGE TO THE UNIT OR FAN,
INCLUDING CAUSING A FIRE!!!

g. 1

Standard wiring with neutral

g. 3

Standard wiring with neutral and SW

connected to neutral

*When using the device without neutral, Shelly Dimmer 2

requires at least 10W of power consumption, in order to oper­ate. If the connected light has a smaller power consumption,
then Shelly Bypass is required for the operation of the Device.

Power supply:

110-240V ±10%
50/60Hz AC

Operational current:

0.1 - 1.1A

Device temperature
protection:

105°C

Complies with EU
standards:

• RE Directive
2014/53/EU

• LVD 2014/35/EU

• EMC 2004/108/WE

• RoHS2 2011/65/UE

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 automation 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

Specication

g. 2

N

ONLLLSW2SW1

g. 4

N

ONLLLSW2SW1

No neutral wiring with no minimum

Working temperature:

from 0°C to 35°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

®

No neutral wiring*

load requirements

Dimensions (HxWxL):

42 x 36 x 14 mm

Electrical consump­tion:

< 1,5 W

Supported light types:

• Incandescent and
halogen light sources:
1-220W

• Dimmable LED : 50­200VA / 1W – 200W

• Resistive-inductive
loads ferromagnetic
transformers: 50­150VA

N

ONLLLSW2SW1

N

Bypass

ONLLLSW2SW1

range of the Device. Shelly® devices can communicate directly
with other WiFi devices through HTTP protocol.
An API can be provided by the Manufacturer. 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.

• Shelly may be controlled by an external button/switch.

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/instal-

lation of the Device should be done by a qualied person

(electrician).

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 comply with all applicable regulations. short
circuit in the power grid or any appliance connected to the
Device may damage the Device.

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.

RECOMMENDATION: The Device may be connected to
and may control electric circuits and light sockets only if they
comply with the respective standards and safety norms.

AWARENESS: If the Device is not connected to the sup­ported light types, the dimming functionality may not be pres­ent. However, you will still be able to turn on and off your
lights.

Initial Inclusion

Before installing/mounting the Device ensure that the grid is
powered off (turned down breakers).
Connect the Device to the power grid and install it in the con­sole behind the switch/power socket following the scheme
that suites the desired purpose.

1. 1. Connecting to a standard power grid with neutral – g. 1

1. 2. Connecting to a power grid without neutral, with a min-

imal consumption of 10W – g. 2

1. 3. Connecting to a standard power grid with neutral, and

switches also connected to neutral – g. 3

1. 4. Connecting to a power grid without neutral, with no

minimal consumption and using Shelly Bypass – g. 4

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

SHELLY® MOBILE APPLICATION

Shelly Cloud gives you opportunity to control and adjust all
Shelly® Devices 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 (Android - g.

2) or App Store (iOS - g. 3) and install the Shelly Cloud app.

g. 2

g. 3

Registration

The rst 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 registration, as it will be used in case you forget
your password.

After registering, create your rst room (or rooms), where you

are going to add and use your Shelly devices.

Shelly Cloud gives you opportunity to create scenes for auto-

matic turning on or off of the Devices at predened 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, tablet or PC.

Device Inclusion

To add a new Shelly device, install it to the power grid fol­lowing the Installation Instructions included with the Device.

Step 1

After the installation of Shelly and 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 shellydimmer2-35FA58 check if
you have connected Shelly correctly by the wiring schemes. If
you do not see an active WiFi network with SSID like shelly-
dimmer2-35FA58, reset the Device. If the Device has been
powered on, you have to power it off and on again. After turn­ing the power on, you have 60 seconds to press 5 consecu­tive times either switch connected I1/I2. Or if you have phys­ical access to the Device, press and hold the reset button for
10 seconds. Shelly should return to AP Mode. If not, please
repeat or contact our customer support at:

[e-mail]

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

If using iOS: you will see the following screen:

Press the home button of your iPhone/iPad/iPod. Open
Settings > WiFi and connect to the WiFi network created by
Shelly, e.g. shellydimmer2-35FA58.

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 the following 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.

Step 5:

Enter Discovered Devices and choose the Device you want to
include in your account.

Step 6:

Enter a name for the Device (in the Device Name eld). Choose a

Room, in which the Device has to be positioned. You can choose
an icon or add a picture to make it easier to recognize. Press
“Save Device”.

Step 7:

To enable connection to the Shelly Cloud service for remote
control and monitoring of the Device, press “YES” on the fol­lowing pop-up.

Shelly Devices Settings

After your Shelly device is included in the app, you can control
it, change its settings and automate the way it works.
To switch the Device on and off, use the Power button.
To enter at the details menu of the Device, click on it’s name.
From the details menu you may control the Device, as well as
edit its appearance and settings.

Тo manage the power supply automatically, you may use:

Auto OFF: After turning on, the power supply will automatically

shutdown after a predened time (in seconds). A value of 0 will

cancel the automatic shutdown.
Auto ON: After turning off, the power supply will be automati-

cally turned on after a predened time (in seconds). A value of

0 will cancel the automatic power-on.

This function requires an Internet connection.
To use Internet, your Shelly has to be connected to a local
WiFi network with an active internet connection. Shelly may

turn on/off automatically at a predened time, at sunrise/
sunset, or at a specied time before or after sunrise/sunset.

Multiple schedules are possible.

WiFi Mode - Client: Allows the device to connect to an avail­able WiFi network. After typing the details in the respective
elds, press Connect.
WiFi Client Backup: Add a backup WiFi network, in case your
primary one becomes unavailable.

WiFi Mode - Acess Point: Congure Shelly to create a Wi-Fi
Access point. After typing the details in the respective elds,

press Create Access Point.
Cloud: Enable or Disable connection to the Cloud service.
Restrict Login: Restrict the web interface of Shely with a User-

name and Password. After typing the details in the elds, press

Restrict Shelly.

Power On Default Mode

This sets the default output state when Shelly is powered.

ON: Congure Shelly to turn ON, when it has power.
OFF: Congure Shelly to turn OFF, when it has power.
Restore Last Mode: Congure Shelly to return to last state it

was in, when it has power.

Firmware Update

Update the rmware of Shelly, when a new version is released.

Button Type

• One Button mode: the device is controlled with a single
switch.

• Dual button mode: the device is controlled dual switch.

• Toggle switch one button: the device is controlled by a sin­gle toggle switch.

• Edge switch: the device is controlled with an edge on/off.

Button Debounce

Adjust the sensitivity (time of reaction) of the connected
switch. If there are any interferences in the power grid, this
will prevent undesired status change (on/off) of the device.
Range: 60 - 200 ms

Calibration

Shelly Dimmer needs callibration based on the type of light
that you are going to use it with. To make a calibration, press
Start Calibration.

Transition Time

Set the time (in miliseconds), for which Shelly Dimmer goes
from 0% to 100%. The value can be from 0 to 5000 ms.

Fade rate

Set the speed of dimming, when the switch is pressed and held.

• Range: 1x - 5x

Minimum Brightness

If the connected light is not working below a certain percent­age, you can set the minimum percent at which Shelly Dim­mer will turn on. Once set, you can not dim the light below
the minimum.

• Range: 0 - 50%

Warm up

Some lights require a certain power impulse, in order to start
below 100% brightness. You can set the brightness level and
time at which Shelly Dimmer will turn on.

• Brightness range: 10 - 100%

• Time range: 20 - 200 ms

Night Mode

With this mode you can set a period of time and level of
brightness, in which any turning on will set the brightness to

the predened level.

Timer

Weekly Schedule

Internet/Security

Settings

Time Zone and Geo-location

Enable or Disable the automatic detection of Time Zone and
Geo-location.

Factory Reset

Return Shelly to its factory default settings.

Device Information

Here you can see the:

• Device ID - Unique ID of Shelly

• Device IP - The IP of Shelly in your Wi-Fi network

The Embedded Web Interface

Еven without the mobile app, Shelly can be set and controlled

through a browser and WiFi connection of a mobile phone,
tablet or PC.

Abbreviations used:

• Shelly-ID – the unique name of the Device. It consists of
6 or more characters. It may include numbers and letters,

for example 35FA58.

• SSID – the name of the WiFi network, created by the De­vice, for example shellydimmer2-35FA58.

• Access Point (AP) – the mode in which the Device cre­ates its own WiFi connection point with the respective name
(SSID).

• Client Mode (CM) – the mode in which the Device is con­nected to another WiFi network.

Initial inclusion
Step 1

Connect Shelly to the power grid following the wiring
schemes. Shelly will create its own WiFi network (AP).

WARNING: In case the Device has not created its own
WiFi network with SSID like shellydimmer2-35FA58 check if
you have connected Shelly correctly by the wiring schemes. If
you do not see an active WiFi network with SSID like
shellydimmer2-35FA58, reset the Device. If the Device has
been powered on, you have to power it off and on again. After
turning the power on, you have 60 seconds to press 5 consec­utive times either switch connected I1/I2. Or if you have phys­ical access to the Device, press and hold the reset button for
10 seconds. Shelly should return to AP Mode. If not, please
repeat or contact our customer support at: support@Shelly.

cloud

Step 2

When Shelly has created an own WiFi network (own AP), with
name (SSID) such as shellydimmer2-35FA58. Connect to it
with your phone, tablet or PC.

Step 3

Type 192.168.33.1 into the address eld of your browser to
load the web interface of Shelly.

Home Page

This is the home page of the embedded web interface. If it
has been set up is correctly, you will see information about:

• Current state (on/off)

• Current brightness level

• Power button

• Connection to Cloud

• Present time

• Settings

Тo manage the power supply automatically, you may use:

Auto OFF: After turning on, the power supply will automatically

shutdown after a predened time (in seconds). A value of 0 will

cancel the automatic shutdown.
Auto ON: After turning off, the power supply will be automati-

cally turned on after a predened time (in seconds). A value of

0 will cancel the automatic power-on.

This function requires an Internet connection.
To use Internet, a Shelly Device has to be connected to a local
WiFi network with working internet connection. Shelly may

turn on/off automatically at a predened time, at sunrise/
sunset, or at a specied time before or after sunrise/sunset.

Multiple schedules are possible.

WiFi Mode - Client

Allows the device to connect to an available WiFi network. After
typing the details in the elds, press Connect.

WiFi Client Backup

Add a backup WiFi network, in case your primary one becomes
unavailable.

WiFi Mode - Acess Point

Congure Shelly to create a Wi-Fi Access point. After typing the
details in the elds, press Create Access Point.

Timer

Weekly Schedule

Internet/Security

Cloud

Enable or Disable connection to the Cloud service.

Restrict Login

Restrict the web interface of Shely with a Username and Pass­word. After typing the details in the elds, press Restrict Shelly.

SNTP Server

You can set a custom SNTP Server. Type the URL address and
press Save.

ATTENTION! If you have entered incorrect information
(wrong settings, usernames, passwords etc.), you will not be
able to connect to Shelly and you have to reset the Device.

WARNING: In case the Device has not created its own
WiFi network with SSID like shellydimmer2-35FA58 check if
you have connected Shelly correctly by the wiring schemes. If
you do not see an active WiFi network with SSID like
shellydimmer2-35FA58, reset the Device. If the Device has
been powered on, you have to power it off and on again. After
turning the power on, you have 60 seconds to press 5 consec­utive times either switch connected I1/I2. Or if you have phys­ical access to the Device, press and hold the reset button for
10 seconds. Shelly should return to AP Mode. If not, please
repeat or contact our customer support at: support@Shelly.

cloud

Advanced - Developer Settings

Here you can change the action execution:

• Via CoAP (CoIOT)

• Via MQTT

Firmware Upgrade

Shows present rmware version. If a newer version is avail­able, ofcially announced and published by the Manufacturer,

you can update your Shelly Device. Click Upload to install it
to your Shelly Device.

Power On Default Mode

This sets the default output state when Shelly is powered.

ON: Congure Shelly to turn ON, when it has power.
OFF: Congure Shelly to turn OFF, when it has power.

Restore Last Mode

Congure Shelly to return to last state it was in, when it has

power.

SWITCH

Congure Shelly to operate accordingly to the state of the

switch (button).

Time Zone and Geo-location

Enable or Disable the automatic detection of Time Zone and
Geo-location.

Firmware Update

Update the rmware of Shelly, when a new version is re­leased.

Button Type

• One Button mode: the device is controlled with a single
switch.

• Dual button mode: the device is controlled dual switch.

• Toggle switch one button: the device is controlled by a
single toggle switch.

• Edge switch: the device is controlled with an edge on/off.

Button Debounce

Adjust the sensitivity (time of reaction) of the connected
switch. If there are any interferences in the power grid, this
will prevent undesired status change (on/off) of the device.

• Range: 60 - 200 ms

Calibration

Shelly Dimmer needs callibration based on the type of light
that you are going to use it with. To make a calibration, press
Start Calibration.

Transition Time

Set the time (in miliseconds), for which Shelly Dimmer goes
from 0% to 100%. The value can be from 0 to 5000 ms.

Fade Rate

Set the speed of dimming, when the switch is pressed and held.

• Range: 1x - 5x

Minimum Brightness

If the connected light is not working below a certain percent­age, you can set the minimum percent at which Shelly Dim­mer will turn on. Once set, you can not dim the light below
the minimum.

• Range: 0 - 50%

Warm up

Some lights require a certain power impulse, in order to start
below 100% brightness. You can set the brightness level and
time at which Shelly Dimmer will turn on.

• Brightness range: 10 - 100%

• Time range: 20 - 200 ms

Night Mode

With this mode you can set a period of time and level of
brightness, in which any turning on will set the brightness to

the predened level.

Factory Reset

Return Shelly to its factory default settings.

Device Reboot

Reboots the device.

Device Information

Here you can see the unique ID of Shelly.

Settings

Shelly allows control via HTTP from any other device, home
automation controller, mobile app or server. For more in­formation about the REST control protocol, please visit:

https://shelly.cloud/developers/ or send a request to:
[e-mail]

Additional Features

Environmental Protection

This marking on the device, accessories, or docu­mentation indicates that the device and its electronic
accessories must be disposed only in specially des­ignated locations.

This marking on the battery, the instruction manual,
the safety instructions, the warranty card or the pack­aging indicates that the battery in the device must be
disposed only in specially designated locations.

Please follow the instructions for environmental protection
and proper disposal of the Device, its accessories, and its
packaging for the recycling of the materials for their further
usage and to keep the environment clean!

Warranty Terms

1. The Device’s warranty term is 24 (twenty four) months, begin­ning since the date of purchase by the End User. The Manufacturer

does is not responsible for extra warranty terms by the Еnd Seller.

2. The Warranty is valid for the territory of EU. The warranty is ap
plicable in compliance with all relevant laws and users’ rights pro­tections. The purchaser of the Device is entitled to exercise his/
her rights in accordance with all applicable laws and regulations.

3. Warranty terms are provided by Allterco Robotics EOOD (re

ferred hereinafter as the Manufacturer), incorporated under the
Bulgarian law, with address of registration 109 Bulgaria Blvd,

oor 8, Triaditsa Region, Soa 1404, Bulgaria, registered with the

Commercial Register kept by the Bulgarian Ministry of Justice’s

Registry Agency under Unied Identity Code (UIC) 202320104.

4. Claims regarding the Conformity of the Device with the terms
of the contract of sale shall be addressed to the Seller, in accor
dance with its terms of sale.

5. Damages such as death or body injury, deterioration or dam
ages to objects different from the defective product, caused by
a defective product, are to be claimed against the Manufacturer
using the contact data of the Manufacturer’s company.

6. The User may contact the Manufacturer at support@shelly.

cloud for operational problems that may be resolved remotely. It

is recommended that the User contact the Manufacturer before
sending it for servicing.

7. The terms of removing defects depends on the commercial
terms of the Seller. The Manufacturer is not responsible for un
timely servicing of the Device or for faulty repairs carried out by
unauthorized service.

8. When exercising their rights under this warranty, the User

must provide the Device with the following documents: receipt
and valid warranty card with date of purchase.

9. After a warranty repair has been carried out, the warranty
period is extended only for that period.

10. The warranty does NOT cover any damages to the Device
which occur in the following circumstances:

• When the Device has been used or wired inappropriately, in
cluding inappropriate fuses, overpassing maximal values of load
and current, electric shock, short circuit or other problems in the
power supply, the power grid or the radio network.

• When there is a non-compliance between warranty card and/
or without a purchase receipt, or attempted forgery of these doc
uments, including (but not limited to) the warranty card or the
documents proving the purchase.

• When there has been a self-repair attempt, (de)installation, modi

cation, or adaptation of the Device by unauthorized persons.

• Intentional or negligent improper handling, storing or transpor
tation of the Device, or in the event of non-observance of the
instructions included in this warranty.

• When a non-standard power supply, network, or faulty Devices
have been used.

• When damages occur which were caused regardless of the

Manufacturer, including but not limited to: oods, storms, re,

lightning, natural disasters, earthquakes, war, civil wars, other
force majeure, unforeseen accidents, robbery, water damage,
any damages made by ingress of liquids, weather conditions,
solar heating, any damages made by intrusion of sand, humidity,
high or low temperature, or air pollution.

• When there are other reasons beyond manufacturing defect, in
cluding but not limited to: water damage, ingress of liquid into the
Device, weather conditions, solar overheating, intrusion of sand,
humidity, low or high temperature, air pollution.[u1]

• When there have been mechanical damages (forced opening,
breaking, cracks, scratches or deformations) caused by a hit, fall,
or from another object, wrong use, or caused by not following the
instructions for use.

• When damage has been caused by exposing the Device to severe
outdoor conditions such as: high humidity, dust, too low or too high

temperature. Terms of proper storage are specied in the User Manual.

• When damage has been caused by lack of maintenance by the

User, as specied in the User manual.

• When damage has been caused by faulty accessories, or those
not recommended by the Manufacturer.

• When damage has been caused by the use of non-original spare
parts or accessories not suitable for the specied Device mod­el, or after repairs and changes carried out by an unauthorized
service or person.

• When damage has been caused by the use of faulty Devices
and/or accessories.

• When damage has been caused by faulty software, a computer
virus or other harmful behaviour on the Internet, or by lack of
software updates or incorrect updates by a method not provided
by either the Manufacturer or by the Manufacturer’s software.

11. The range of warranty repairs does not include periodical main­tenance and inspections, particularly cleaning, adjustments, checks,

bug xes or program parameters and other activities that must be

performed by the User (Buyer). The warranty does not cover wear of
the Device, because such elements have a limited lifespan.

12. The Manufacturer is not responsible for any property dam­age caused by a defect in the Device. The Manufacturer is not
liable for indirect damages (including but not limited to loss of

prots, savings, lost prots, claims by third parties) in connection

with any defect of the Device, nor for any property damage or
personal injury arising out of or related to the use of the Device.

13. The Manufacturer is not responsible for damage caused by

circumstances independent of the Manufacturer, including but

not limited to: oods, storms, re, lightning, natural disasters,

earthquakes, war, civil unrest and other force majeure, unfore
seen accidents, or theft

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Manufacturer: Allterco Robotics EOOD
Address: Soa, 1407, 103 Cherni vrah blvd.
Tel.: [phone]
E-mail: [e-mail]

http://www.Shelly.cloud

The Declaration of Conformity is available at:

https://Shelly.cloud/declaration-of-conformity/

Changes in the contact data are published by the Manufac-

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turer at the ofcial website of the Device:

http://www.Shelly.cloud

The User is obliged to stay informed for any amendments of
these warranty terms before exercising his/her rights against
the Manufacturer.
All rights to trademarks She
lectual rights associated with this Device belong to Allterco
Robotics EOOD.

.

®

and Shelly® , and other intel-

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2019/01/v01