Shelly Pro 4 PM

Device identification

Name: Shelly Pro 4PM V2 ≠

Model: SPSW-104PE16EU ≠

Device SSID: ShellyPro4PM-XXXXXX ≠

Short description

Shelly Pro 4PM is a DIN rail–mountable four-channel smart switch with power measurement capabilities.
Enhanced with all the Gen2 firmware flexibility, LAN connectivity, and a color graphic display, it gives
professional integrators more options for end customer solutions.
It can work standalone in a local Wi-Fi network or be operated through cloud home automation services.
The device can be accessed, controlled, and monitored remotely from anywhere with Internet connectivity.
Its embedded web interface allows monitoring, control, and advanced configuration.

Main features

• DIN rail mountable
• Four-channel switching with power metering
• Gen2 firmware with flexible automation options
• LAN connectivity ≠
• Color LCD display
• Remote access and monitoring
• Embedded Web Interface for local control

Connectors modified: four 2-terminal load connectors replaced by five individual screw terminals ≠

LAN: improved high voltage electrical distances ≠

Use cases

• Residential: Full control of lighting, appliances, and heating
• MDU: Apartments, condominiums, hotels
• Light commercial: Offices, retail, restaurants, gas stations
• Government/municipal: Smart facility management
• University/college: Campus automation and monitoring

Integrations

Google

Alexa

Samsung SmartThings

Simplified internal schematics

Available with updated terminal configuration ≠

Device electrical interfaces

Inputs: 4 switch/button inputs on screw terminals (S1, S2, S3, S4)

Power supply: 2 screw terminals (1N, 1L)

Outputs: 4 relay outputs (O1, O2, O3, O4)

Ethernet port: 1 RJ45 connector

⚠ CAUTION! Plug/unplug the LAN cable only when powered off. The LAN connector must not have metallic parts exposed to touch.

Connectivity

Wi-Fi

Ethernet

Bluetooth

Safety function

Overheating protection

Overvoltage protection

Overcurrent protection

Overpower protection

Supported load types

• Resistive (incandescent bulbs, heaters)
• Capacitive (capacitor banks, electronics, motor start capacitors)
• Inductive with RC Snubber (LED drivers, transformers, fans, refrigerators, ACs)

User interface

Inputs: Three front-panel buttons

• Left → scroll up

• Middle → scroll down

• Right → wake display; press/hold for menu navigation and selection

Outputs: Color LCD

• Top bar: shows Time, Bluetooth, LAN, Wi-Fi STA, Wi-Fi AP, Cloud status (icons: enabled = blue/green, disconnected = red, disabled = no icon)

• Main screen: Output 1–4 on/off states

• Network menu: toggle Wi-Fi AP/STA, Ethernet, Bluetooth

• Status menu: full device status

• Maintenance: Wi-Fi reset, factory reset, reboot

Physical

Size (HxWxD): 96×53×59 mm ±0.02 / 3.78×2.01×2.32 in ±0.02

Weight: —

Mounting: DIN rail

Screw terminals torque: 0.4 Nm (3.5 lbf·in, green connectors)

Conductor size: 0.5–2.5 mm² (20–14 AWG, green connectors)

Strip length: 6–7 mm (0.24–0.28 in, green connectors)

Shell material: Plastic

Color: Black

Environmental

Ambient temperature: −20 °C to 40 °C (−5 °F to 105 °F)

Humidity: 30–70% RH

Max altitude: 2000 m (6562 ft)

Electrical

Power supply (AC): 110–240 V~

Power supply (DC): N/A

Power consumption: < 4 W

Neutral required: No

Output 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; 50 m / 160 ft outdoors (depends on conditions)

Bluetooth protocol: 4.2

Bluetooth range: Up to 10 m / 33 ft indoors; 30 m / 100 ft outdoors (depends on conditions)

MCU

CPU: ESP32-D0WDQ6

Flash: 8 MB

Firmware capabilities

Schedules: 20

Webhooks: 20 (up to 5 URLs each)

Scripting: Yes

MQTT: Yes

CoAP: No