Shelly 1PM Gen4 — WiFi+Zigbee+Matter Single Channel Relay with 16A Meter

Shelly 1PM Gen4 — WiFi+Zigbee+Matter 1 Channel Relay with Meter 16A

The Shelly 1PM Gen4 (model S4SW-001P16EU) is a fourth-generation 1-channel WiFi relay with integrated power metering. It combines WiFi 802.11 b/g/n/ax, Zigbee 3.0, Bluetooth BLE 5.0, and Matter in a compact 37×42×16 mm design. Control and monitor loads up to 16A / 3680W. No hub or subscriptions required.

Technical Specifications — Shelly 1PM Gen4

• Model: S4SW-001P16EU
• Connectivity: WiFi 802.11 b/g/n/ax (2.4 GHz) + Zigbee 3.0 + Bluetooth BLE 5.0 + Matter
• Power Supply: 110–240V AC / 24–30V DC
• Maximum Load: 16A — 3680W
• Channels: 1
• Energy Measurement: Yes — power, voltage, current, power factor
• Operating Temperature: -20°C to +40°C
• Dimensions: 37 × 42 × 16 mm
• Certifications: CE, RoHS, Matter
• Protocols: MQTT, HTTP REST API, WebSockets, Webhooks, Scripting (mJS)

Main Features

• Quad-connectivity: WiFi ax + Zigbee 3.0 + Bluetooth BLE 5.0 + Matter
• Real-time energy measurement: power, voltage, current, and power factor
• 16A / 3680W — suitable for high-power appliances and loads
• Configurable profile: Matter (default) or Zigbee (5 button presses)
• Local control without cloud dependency
• Automatic OTA updates and advanced mJS scripting

Compatible with

• Home Assistant (local, no cloud)
• Amazon Alexa
• Google Home
• Apple Home (Matter)
• MQTT, HTTP REST API, Scripting mJS

Use Cases

• Control and monitoring of high-power appliances
• Circuit-level energy management with integrated metering
• Integration into existing Zigbee or Matter installations
• Automation of lighting with real-time consumption tracking

Official Shelly distribution. Shipping from Spain. Official Shelly warranty.