Shelly Pro 3
Device name: Shelly Pro 3
Device model: SPSW-003XE16EU
Device SSID: ShellyPro3-XXXXXX
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.
MDU (Multi Dwelling Units - apartments, condominiums, hotels, etc.)
Light commercial (small office buildings, small retail/restaurant/gas station, etc.)
Industrial (factories, power plants, water processing, refineries, etc.)
Simplified internal schematics
Device electrical interfaces (≠)
3 switch/button inputs on screw terminals: S1, S2 and S3
2 powers supply inputs on screw terminals: 1 N and 1 L
3 relay inputs: I1, I2 and I3
3 relay outputs: O1, O2 and O3
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.
Bluetooth (for inclusion purposes)
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)
One tactile dome button
Press and hold 5 sec to reboot.
Press and hold 10 sec to factory reset.
Power (red): Red light indicator will be on if power supply is connected.
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.
96x53x59 ±0.5 mm / 3.78x2.01x2.32 ±0.02 in
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
-20 °C to 40 °C / -5 °F to 105 °F
30 % to 70 % RH
2000 m / 6562 ft
Power supply voltage AC:
110 - 240 V
Power supply voltage DC:
< 3 W
Neutral not needed:
Output circuits ratings
Max switching voltage AC:
Max switching voltage DC:
Max switching current AC:
16 A per channel, 48 A total
Max switching current DC:
16 A per channel, 48 A total
24010- 2495 MHz
Max. RF power:
Up to 30 m / 100 ft indoors and 50 m / 160 ft outdoors
Up to 10 m / 33 ft indoors and 30 m / 100 ft outdoors
Webhooks (URL actions):
20 with 5 URLs per hook
Basic wiring diagram
I1, I2, I3
Load circuit input terminals
Load circuit 1 live (110-240 V) cable
O1, O2, O3
Load circuit output terminals
Load circuit 2 live (110-240 V) cable
S1, S2, S3
Switch/button input terminals
Load circuit 3 live (110-240 V) cable
Live (110-240 V) terminal
Local Area Network RJ 45 connector
Web Interface guide
Read the Shelly Pro 3 web interface guide
Components and APIs
Printed User Guide
Printed user guide - English, Deutsch, Italiano, Español, Português, Français