The 8-Channel Relay Module 5V with Optocoupler Isolation lets a microcontroller switch up to eight high-voltage or high-current AC and DC loads safely and independently. Every channel is opto-isolated, shielding the control-side logic from voltage spikes generated by the switched loads.
Key features:
- Channels: Eight independent relays, each with NO and NC screw terminals.
- Isolation: An optocoupler on every channel separates the 5V logic side from the relay switching side.
- Trigger Level: Compatible with high-level or low-level trigger signals from Arduino, Raspberry Pi, or STM32.
- Switching Capacity: Each relay is rated up to 10A at 250VAC or 10A at 30VDC.
- Status Indicators: Onboard LEDs show the on/off state of every channel at a glance.
- Terminal Blocks: Screw terminals make wiring loads quick and secure without soldering.
This module is a dependable choice for home automation, industrial control, and any project that needs to switch several mains-powered devices from a microcontroller.