The OMRON H3Y-4 DC24 0.5S is a 240VAC/DC, 0.5 second Time Delay Relay. It is a single-phase, multi-voltage, mini-delay timing relay. The relay features a built-in solid-state timer and comes with a detachable base for easy wiring. This model also features a simple terminal layout and a compact, highly resistant dust-proof, shock-proof design. The relay can be used in a variety of applications such as delay on start and break, on-delay and interval timing, machine shutdown and operation delay, and machine interlock.