Shelly Pro 3

What is Shelly Pro 3?

3-channel relay with potential-free outputs, supporting a total of 48A for professional automation of residentials or commercial use. Control temperature or lights automation in large spaces.

LAN, Wi-Fi, and Bluetooth connection
3 outputs, 16A each. Total device maximum of 48A
Dry contacts
Overpower and overvoltage protection of the load.
Easy control through the Shelly app, various protocols, and platforms, as well as voice assistants
Supports control of 3 differnt phases
Supports KNXnet / IP communication

VIEW SPECIFICATIONS SHELLY MOBILE APP

Features

LAN, Wi-Fi, and Bluetooth connectivity

LAN connection for high security and reliability. Simultaneous Wi-Fi and LAN usage, as backup when needed

3 channels, 16 A each

Shelly Pro 3 has a total device output of 48A

Dry Contacts

Use a wide range of output voltage levels. Supports low voltages

Low and high-voltage support

Use it to control a wide range of AC devices and appliances

Enhanced safety & security

Improved safety features and TLS 1.2 support, allowing a broad range of secure cloud-connected and local integrations

Scripting capabilities

Shelly Pro 3 fully supports mjS scripting, allowing you to create further features and functionalities

Use Cases

Lights automation of the common spaces

Reduce unnecessary monthly costs with Shelly smart lighting solutions. Shelly Pro 3 can control three separate light circuits and give you full control over common spaces such as halls, garages, and storage rooms, which usually have their lights constantly switched on. Now you can make them energy efficient using Shelly Pro 3’s built-in scheduling and scripting functionalities. To fully automate your premises, add Shelly Motion2 to switch on the lights automatically when someone enters, and its pre-set smart timer will switch the lights off once the premises are empty.

Common area temperature control

In guest rooms, reception areas, restaurants, or meeting rooms, keeping the temperature at a comfortable level is a key contributor to the comfort of both guests and employees. However, it is hard to maintain an optimal temperature without any energy going to waste. The cooling/heating systems in the hotels should follow the dynamic changes in the temperatures during the different seasons. Use Shelly Pro 3 to control the motorized valves in your water distribution box and control heating, cooling, or any other motorized valve in your facility. Smart schedules combined with temperature & humidity sensors and precise weather data will provide dynamic control of the heating system for an optimal indoor climate.

Pro Series Features

HTTP/HTTPS webhooks for quick connection

Enhanced with HTTP/HTTPs webhooks, Shelly Pro line can easily connect with, notify or control other compatible equipment or 3rd party automation system.

Smart actions that follow the Sunrise/Sunset

Shelly Pro line can switch on/off the power, depending on the Sunset/Sunrise hour, allowing dynamic control of the electrical equipment depending on the season.

Automation with weekly scheduling

Shelly Pro line allows you to set up to 20 actions based on your daily or weekly schedule with no need for an external hub or server.

Scripting for custom automation

Shelly Pro line fully supports mjS scripting, allowing customers to create their own features and functionalities.

Caution

Installation of certain Shelly devices must be done by a qualified electrician or authorised installer.

Diagrams

Terminals		Wires
I1, I2, I3	Load circuit input terminals	L1(A)	Load circuit 1 live (110-240 V) wire
O1, O2, O3	Load circuit output terminals	L2(B)	Load circuit 2 live (110-240 V) wire
S1, S2, S3	Switch/button input terminals	L3(C)	Load circuit 3 live (110-240 V) wire
L	Live (110-240 V) terminal	N	Neutral wire
N	Neutral terminal
LAN	Local Area Network RJ 45 connector

Specifications

Physical
Size (HxWxD):	96x53x59 ±0.5 mm / 3.78x2.01x2.32 ±0.02 in
Weight:
Mounting:	DIN rail
Screw terminals max torque:	0.4 Nm / 4.43 lbin
Conductor cross section:	0.5 to 2.5 mm² / 20 to 14 AWG
Conductor stripped length:	6 to 7 mm / 0.24 to 0.28 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 voltage AC:	110 - 240 V
Power supply voltage DC:	N/A
Power consumption:	< 3 W
Neutral not needed:	No
Output circuits ratings
Max switching voltage AC:	240 V
Max switching voltage DC:	30 V
Max switching current AC:	16 A per channel, 48 A total
Max switching current DC:	16 A per channel, 48 A total
Sensors, meters
Internal-temperature sensor:	Yes
Radio
RF band:	24010- 2495 MHz
Max. RF power:	<20 dBm
Wi-Fi protocol:	802.11 b/g/n
Wi-Fi Range:	Up to 30 m / 100 ft indoors and 50 m / 160 ft outdoors (Depends on local conditions)
Bluetooth Protocol:	4.2
Bluetooth Range:	Up to 10 m / 33 ft indoors and 30 m / 100 ft outdoors (Depends on local conditions)
MCU
CPU:	ESP32-D0WDQ6
Flash:	8 MB
Firmware capabilities
Schedules:	20
Webhooks (URL actions):	20 with 5 URLs per hook
Scripting:	Yes
MQTT:	Yes
CoAP:	No