8 Channel Relay Module (USB-RLY16L, Low Power Version, Up to 16Amp)

Resources

Relay data sheet
Drivers
Program
Setup guide

8 Channel USB Relay Module With Latching SPCO Relays And 16A Switching Capacity For Automation And Industrial Control

The USB RLY16L 8-channel relay module is a low-power USB-controlled relay board designed for automation, industrial control, and remote switching applications. Powered directly from the USB bus, this module eliminates the need for an external power supply while providing eight independent voltage-free relay outputs with switching capability up to 16A per channel. Its latching relay design ensures that relay states are retained even when power is removed, making it suitable for reliable control systems and power-critical applications.
Each relay uses a Single Pole Change Over SPCO configuration with dedicated positions 0 and 1 and common terminals for flexible wiring options. Integrated red status LEDs provide instant visual indication of relay positions, simplifying monitoring and troubleshooting. The module is ideal for home automation, equipment control, laboratory systems, industrial automation, and embedded USB-controlled switching solutions.
Key Features

8 Independent Relay Channels: Control multiple devices simultaneously
USB Powered Operation: No external power supply required
16A Switching Capacity: Suitable for high current applications
Latching Relay Design: Retains relay state without continuous power
SPCO Relay Configuration: Provides position 0, position 1, and common terminals
LED Status Indicators: Visual indication for relay switching state
Volt Free Contacts: Flexible integration with various electrical systems
Reliable Control Solution: Suitable for automation and industrial environments

Applications

Industrial automation systems
USB-controlled switching applications
Home automation projects
Laboratory equipment control
Power management systems
Embedded control systems
Remote device operation

Package Contents

USB-RLY16Lx1