The K8AK-TS1 100-240VAC is a relay module from Omron. It is a 5-pin, 30 mm wide, 5A rated SPDT relay module. It is equipped with an indicator LED and an external lockable test switch and is designed to be used in applications that require a large contact capacity and a long life expectancy. The K8AK-TS1 100-240VAC is ideal for a wide range of applications like lighting, heating, motor control, and other industrial applications. It accepts a signal from a controller and operates at a wide variety of input voltages from 100 to 240 VAC.