Shelly 2PM Gen3

Device identification

Device name: Shelly 2PM Gen3

Device model: S3SW-002P16EU

Device SSID: Shelly2PMG3-XXXXXXXXXXXX

BLE Model ID: 0x1005

Short description

Shelly 2PM Gen3 is a compact 2-channel smart switch with power measurement and cover control.
It enables remote control of appliances via mobile, tablet, PC, or automation system.
Works standalone on Wi-Fi or through cloud services.
Includes upgraded processor, more memory, and supports Venetian blinds.

Main features

• Smart Switch with Power Measurement: Monitor energy usage of connected appliances.
• Compact Design: Fits wall boxes, behind sockets, switches, or tight spaces.
• Remote Control: Control appliances via mobile, PC, or automation system.
• Local & Cloud Control: Operates in local Wi-Fi or cloud.
• Improved Processor & Memory: Faster performance and more storage.
• Remote Access: Control and monitor from anywhere with internet access.
• Embedded Web Interface: Configure and monitor device directly.
• BLE Gateway: Bridges Shelly BLU devices to cloud or local network.
• Wi-Fi Range Extender: Boosts coverage for IoT devices.
• Scripting: ShellyScript language support
• Wide Integrations: HTTP API, MQTT(s), WebHooks, UDP.
• KNX: KNXnet/IP (Switch mode, firmware 1.5.0+).
• Schedules: Flexible time/date automations.
• Virtual Components: Virtual device support
• Venetian blinds mode: Controls blinds, rollers, awnings; tilt adjustment supported.

Use cases

• Appliance Control: Automate lights, fans, or other devices.
• Power Monitoring: Real-time consumption tracking.
• Home Automation: Create custom scenes and schedules.
• Energy Efficiency: Identify energy-hungry appliances.
• Remote Monitoring: Check and control appliances from anywhere.

Integrations

Amazon Alexa: Supported

Google Smart Home: Supported

Samsung SmartThings: Supported

Device electrical interfaces

Inputs: 2 switch/button (S1, S2); 3 power supply inputs (1N, 2L)

Outputs: 2 relay outputs with power measurement

Add-on interface: Shelly proprietary serial interface; Plus 1 add-on compatible

⚠ High voltage on add-on when powered!

Connectivity

Wi-Fi

Bluetooth

Safety functions

• Overheating protection
• Overvoltage protection
• Overcurrent protection
• Overpower protection
• Obstacle detection (cover mode)
• Safety switch (cover mode)

Supported load types

• Resistive (bulbs, heating)
• Capacitive (electronics, motor capacitors)
• Inductive with RC Snubber (drivers, fans, appliances)

User interface

Inputs: One control button

• Hold 5s → enable AP & Bluetooth

• Hold 10s → factory reset

Outputs: LED indication

• AP enabled, Wi-Fi off → 1s ON / 1s OFF

• Wi-Fi enabled, not connected → 1s ON / 3s OFF

• Wi-Fi connected → Constant ON

• Cloud enabled, not connected → 1s ON / 5s OFF

• Connected to Shelly Cloud → Constant ON

• OTA update → 0.5s ON / 0.5s OFF

• Button held 5s → 0.5s ON / 0.5s OFF

• Button held 10s → 0.25s ON / 0.25s OFF

Each new state cancels the previous one (priority order).

Physical

Size (HxWxD): 37×42×16 mm ±0.5 / 1.46×1.65×0.63 in ±0.02

Weight: 30 g / 1.06 oz

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

Conductor size: 0.2–2.5 mm² (24–14 AWG; solid, stranded, bootlace ferrules)

Strip length: 6–7 mm (0.24–0.28 in)

Mounting: Wall box

Shell material: Plastic

Color: Black

Terminals 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: 110–240 V~ / 24 V⎓ ±10%

Power consumption: < 1.4 W

External protection: Tripping characteristic B or C; 16 A max rated current; min 6 kA interrupting rating; energy limiting class 3

Output ratings

Max switching voltage AC: 240 V~

Max switching voltage DC: 30 V⎓

Max switching current AC: 10 A (per channel), 16 A (total), 18 A (total peak)

Max switching current DC: 10 A

Sensors & Meters

Voltmeter (AC): Yes

Ammeter (AC): Yes

Internal temperature sensor: Yes

Radio

Wi-Fi protocol: 802.11 b/g/n

Wi-Fi RF band: 2412–2472 MHz

Wi-Fi max RF power: < 20 dBm

Wi-Fi range: Up to 30 m / 100 ft indoors; 50 m / 160 ft outdoors (depends on conditions)

Bluetooth protocol: 4.2

Bluetooth RF band: 2402–2480 MHz

Bluetooth max RF power: < 4 dBm

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

MCU

CPU: ESP-Shelly-C38F

Flash: 8 MB

Firmware capabilities

Schedules: 20

Webhooks: 20 (up to 5 URLs each)

Scripting: Yes

MQTT: Yes