Description
The Omron LY1-AC24 is a dependable single-pole double-throw (SPDT) general purpose relay engineered for demanding HVAC and light commercial control applications. With a 24Vac coil voltage and a robust 15-amp contact rating, this relay delivers the switching power needed for fan circuits, contactor coils, solenoid valves, and a wide range of auxiliary control loads.
Designed for versatile installation, the LY1-AC24 supports both plug-in and solder terminal connections, making it compatible with standard relay sockets for quick field replacement or direct hard-wired installations. The included standard bracket mounting hardware allows for secure panel or enclosure mounting, keeping wiring neat and organized in control cabinets and junction boxes.
Omron’s LY series relays are trusted by HVAC professionals and electrical contractors for their consistent performance, long mechanical life, and compact form factor. Whether you’re building a new control panel, replacing a failed relay in the field, or upgrading an existing system, the LY1-AC24 provides the reliability and flexibility you need.
Key Features
- SPDT (Single-Pole Double-Throw) contact configuration
- 24Vac coil voltage — ideal for standard HVAC control circuits
- 15-amp contact rating for high-load switching applications
- Plug-in and solder terminal options for flexible wiring
- Standard bracket mounting included for panel or enclosure installation
- Compact, space-saving design for tight control cabinets
- Long mechanical and electrical service life
Specifications
- Brand: Omron
- Model / SKU: LY1-AC24
- Relay Type: General Purpose
- Contact Configuration: SPDT (1 Form C)
- Coil Voltage: 24Vac
- Contact Rating: 15 Amps
- Terminal Type: Plug-in / Solder
- Mounting: Standard Bracket
Common Applications
- HVAC fan and blower control circuits
- Contactor and solenoid valve coil switching
- Building automation and DDC control panels
- Light commercial electrical control systems
- General-purpose switching in control enclosures







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