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

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.

• 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

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