Relay Module with Optocoupler High/Low Level Trigger for Arduino (5, 5V Relay 8 Channel)

Relay Module Optocoupler High/Low Level Trigger Arduino (5, 5V Relay 8 Channel) This 8-channel isolated 5V 10A relay module enables independent on/off switching for each relay via an opto-isolated digital input. Its standard interface allows direct connection to various microcontrollers including Arduino, AVR, PIC, ARM, and DSP for easy control. It features a high-current relay with a maximum load capacity of AC250V 10A, 15A 125VAC, or DC30V 10A. The opto-isolator trigger current is 5mA. A fault-tolerant design prevents the relay from actuating in case of a broken control line, while optical coupling isolation ensures reliable and stable triggering. Simple installation is supported by a screwed terminal plate and fixed bolt holes (3.1 mm diameter) on both sides. A jumper provides selection between high or low level triggers and can reverse the input logic for flexible application.