Keyestudio Four Channel Solid State Relays module for Arduino

The Keyestudio Four Channel Solid State Relays module for Arduino offers a reliable, contactless switching solution for your digital control projects. It is ideal for students, makers, and hobbyists looking to control AC loads safely and efficiently.

Contactless electronic switching

Composed entirely of solid-state electronic components, this module operates without physical contacts. This contactless design ensures higher reliability, a longer service life, and faster switching speeds than traditional electromagnetic relays.

Active low trigger logic

The relay operates on an active LOW control signal, turning on when the input signal is between 0V and 1.5V. When the input control signal is at a high level of 3V to 5V, the relay turns off.

Reduced electrical interference

By eliminating moving mechanical parts, this solid-state relay produces minimal outside interference during operation. This makes it an excellent choice for projects requiring clean, quiet, and stable switching.

Key electrical parameters

The module runs on a DC 5V working voltage with a 12.5mA working current and 0mA static current per channel. It triggers at 0 to 1.5V with a 2mA trigger current, supporting an output port rated at AC 100V and 2A.