Adafruit
5V 1.8A Isolated Output PoE Module Works with Raspberry Pi 3 B+
An isolated Power over Ethernet (PoE) module that extracts power from the Ethernet cable's centre taps and outputs a regulated 5 V at up to 1.8 A. The built-...
An isolated Power over Ethernet (PoE) module that extracts power from the Ethernet cable's centre taps and outputs a regulated 5 V at up to 1.8 A. The built-in isolation transformer ensures there is no direct electrical connection between the Ethernet side and the 5 V output — important for safety in certain installations and environments.
This module is well suited to the Raspberry Pi 3 Model B+, which exposes the PoE centre-tap pins on a header. Connect with female-to-female jumper wires, then route the 5 V output back to the Pi's power pins. At 1.8 A, it comfortably powers a Pi 3B+ for most use cases (typical draw is ~0.7 A without USB accessories).
Key Features
- 5 V 1.8 A Output – Regulated DC from standard PoE infrastructure
- Galvanic Isolation – Transformer-isolated for safety and noise reduction
- Simple Wiring – Four input wires from Ethernet centre taps, two output wires for 5 V
- Raspberry Pi 3 B+ Compatible – Connects directly to the PoE header pins
Specifications
- Output Voltage – 5 V DC regulated
- Output Current – Up to 1.8 A
- Isolation – Galvanic (transformer-isolated)
- Input – PoE centre-tap wires (4 wires)
Ideal For
- Raspberry Pi deployments requiring electrical isolation
- Industrial and outdoor PoE installations
- Remote IoT devices and sensors
- Noise-sensitive measurement systems
Jargon buster
Plain-language definitions for the technical terms used above.
- IoT
- Short for Internet of Things, meaning physical devices that connect to networks or the internet to send data or be controlled remotely. It matters if you want projects such as connected sensors, remote controls or classroom data-logging activities.
- PoE
- Power over Ethernet lets one Ethernet cable carry both network data and electrical power. This is useful when installing a device where running a separate power adaptor would be difficult.
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