Relay switches are categorized by their application, ranging from smart home automation to heavy-duty industrial or automotive use. When choosing a relay, ensure the matches your control signal (e.g., 5V for Arduino, 12V for cars) and the contact rating can handle the power of the device you are switching. Smart Home Relays
Built for panel mounting or DIN rail installation, these handle high voltage and current for industrial automation. buy relay switch
A dual-channel relay for controlling two circuits or motors like roller shutters. Often sold as a 2-pack for $70.50 $56.40 at Shelly USA . Automotive & 12V Relays Relay switches are categorized by their application, ranging