The Omron LY1F-220/240AC is an electromagnetic relay with a single-pole double-throw (SPDT) contact configuration, an AC voltage rating of 220 to 240V, a coil voltage of 230VAC, and a 15A/100VAC and 15A/24VDC current rating. It is designed to switch circuits on and off with low levels of power, providing fast, reliable switching of high current loads at a lower cost. The small size and simple design make it well suited for a variety of applications.