The Omron G2R-1-SNI AC24(S) is a general-purpose relay with a 24 VAC coil, sitting in the G2R family that's been a workhorse in control panels for years. Coil holds at 24 VAC nominal; dropout voltage is typically around 70% of nominal, so it'll stay pulled in through a brownout down to about 16.8 VAC. That's a solid margin for a plant with saggy distribution.
Rated for general-purpose switching in control circuits — think PLC output isolation, motor starter interlocks, or signal routing on a panel. The 24 VAC coil means it's a straight swap into existing AC control transformers without adding a DC supply. Out here in the grease, that's one less thing to fail on a hot motor route.