Keyestudio Eight Channel Solid-State Relay Module for arduino

The Keyestudio Eight Channel Solid-State Relay Module is a reliable, contactless switching solution designed for Arduino-based projects. It is ideal for students, makers, and hobbyists who need to control multiple high-voltage AC circuits safely and efficiently.

Contactless switching technology

Constructed entirely from solid-state electronic components, this module functions without any moving parts. This contactless design provides higher reliability, faster switching speeds, less outside interference, and a longer service life than traditional electromagnetic relays.

High-level trigger control

The relay channels are active at a HIGH level, triggering on when an input control signal of 3.3V to 5V is received. When the input control signal drops to a low level between 0V and 2.5V, the relay switches off.

Low-power trigger requirements

Each channel requires a trigger current of only 2mA, ensuring minimal power draw from your microcontroller. The module has a static current of 0mA when no channels are triggered.

Load and working current specifications

The output ports support AC loads up to 100V at 2A. The working current scales from 13.8mA for a single active channel up to 90mA when all eight channels are active simultaneously.