Shelly Pro 3 Wi-Fi 3 Channel Smart Relay

Shelly Pro 3 Wi-Fi 3 Channel Smart Relay

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.

Features:

• 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

Shelly Pro 3 is a DIN rail mountable 3-channel smart switch with potential-free contacts, capable of switching 3 completely independent circuits, including 3-phase ones. Enhanced with all the gen2 firmware flexibility and LAN connectivity, it provides professional integrators with many more options for end customer solutions. It can work standalone in a local Wi-Fi network or it can also be operated through cloud home automation services.

Shelly Pro 3 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.

Shelly Pro 3 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
• Samsung SmartThings
• Alexa

Device electrical interfaces

Inputs

• 3 switch/button inputs on screw terminals: S1, S2 and S3
• 2 power supply inputs on screw terminals: 1 N and 1 L
• 3 relay inputs: I1, I2 and I3

Outputs

• 3 relay outputs: O1, O2 and O3

Ethernet port

• 1 RJ45 connector

CAUTION! Plug in or unplug the LAN cable only when the Device is powered off! The LAN cable connector must not be metallic in the parts touched by the user to plug in or unplug the cable.

Connectivity

• Wi-Fi
• Ethernet
• Bluetooth

Safety features

• Overheating protection

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 tactile dome button

• Press and hold 5 sec to reboot.
• Press and hold 10 sec to factory reset.

Outputs

LED indication

Power (red): Red light indicator will be on if power supply is connected.

Wi-Fi (varies):

• Blue light indicator will be on if in AP mode.
• Red light indicator will be on if in STA mode, and not connected to a Wi-Fi network.
• Yellow light indicator will be on if in STA mode, and connected to a Wi-Fi network. Not connected to Shelly Cloud or Shelly Cloud disabled.
• Green light indicator will be on if in STA mode, and connected to a Wi-Fi network and the Shelly Cloud.
• The light indicator will be flashing Red/Blue if OTA update is in progress.
• LAN (green): Green light indicator will be on if LAN is connected.
• Out 1 (red): Red light indicator will be on if the Output 1 relay is closed.
• Out 2 (red): Red light indicator will be on if the Output 2 relay is closed.
• Out 3 (red): Red light indicator will be on if the Output 3 relay is closed.

Technical Specifications:

Physical
Size (HxWxD): 96 x 53 x 59 ±0.5 mm / 3.78 x 2.01 x 2.32 ±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: 2401–2495 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