Shelly Pro 4PM

Device identification

Device name: Shelly Pro 4PM
Device model: SPSW-004PE16EU
Device SSID: ShellyPro4PM-XXXXXX

Short description

Shelly Pro 4PM is a DIN rail mountable 4-channel smart switch with power measurement capabilities. 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 4PM 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 4PM 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.)
Industrial (factories, power plants, water processing, refineries, etc.)
Government/municipal
University/college

Integrations

Google
Alexa
Samsung SmartThings

Simplified internal schematics

Device electrical interfaces

Inputs

4 switch/button inputs on screw terminals: S1, S2, S3, and S4
5 power supply inputs on screw terminals: 1 N and 4 L

Outputs

4 relay outputs: O1, O2, O3, and O4

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
Overvoltage protection
Overcurrent protection
Overpower 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

Three press buttons on the front plate:

Left button:
- Press to scroll up in the currently displayed menu
Middle button:
- Press to scroll up in the currently displayed menu
Right button:
- Press to wake up the Device display
- Press and hold to get into the menu screen
- Press to select a menu item
- Press and hold while in a sub menu to move to the Main menu

Outputs

Color LCD display.

The LCD displays a top bar with short status information:

Time
Bluetooth connection status
- Disabled - no icon
- Enabled - blue icon
LAN status:
- Disabled - no icon
- Enabled, but not connected - red icon
- Connected - green icon
Wi-Fi STA status:
- Disabled - no icon
- Enabled, but not connected - red icon
- Connected - green icon
Wi-Fi AP status:
- Disabled - no icon
- Enabled, but not connected - red icon
- Connected - green icon
Cloud status:
- Disabled - no icon
- Enabled, but not connected - red icon
- Connected - green icon

The rest of the LCD is used to display the Device menu screens:

Main (default) screen:
- Output 1 on/off
- Output 2 on/off
- Output 3 on/off
- Output 4 on/off
Network:
- Wi-Fi AP enable/disable
- Wi-Fi enable/disable
- Ethernet enable/disable
- Bluetooth enable/disable
Status:
Displays complete status information
Maintenance
- Wi-Fi reset
- Factory reset
- Reboot

Specifications

Type	Value
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 / 3.5 lbin
Conductor cross section:	0.5 to 2.5 mm? / 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:	< 4 W
Neutral not needed:	No
Output circuits ratings
Max switching voltage AC:	240 V
Max switching voltage DC:	N/A
Max switching current AC:	16 A per channel, 40 A total
Max switching current DC:	N/A
Sensors, meters
Voltmeter (AC)	Yes
Ammeter (AC)	Yes
Internal-temperature sensor:	Yes
Radio
RF band:	2400 - 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

Basic wiring diagram

Resistive load

Legend

Terminals		Wires
O1, O2, O3, O4	Load circuit output terminals	L	Live (110-240 V) wire
S1, S2, S3, S4	Switch/button input terminals	N	Neutral wire
L	Live (110-240 V) terminals
N	Neutral terminal
LAN	Local Area Network RJ 45 connector