OMRON H3Y-4-DC24-3H Solid-State Miniature Timer Relay

The OMRON H3Y-4-DC24-3H (H3Y-4-DC24-3H) is a miniature solid-state timer relay engineered for precision timing and sequential control in industrial automation equipment. As part of the OMRON H3Y series, this on-delay timing device features a compact footprint that shares socket compatibility with standard MY-series miniature relays, facilitating fast DIN rail or panel mounting into existing electrical enclosures and control cabinets. Operating from a nominal 24 VDC power supply, the timer relay delivers dependable fixed-range timing up to 3 hours, adjustable via an intuitive transparent front dial. The device is widely utilized alongside auxiliary relays, contactors, and programmable logic controllers to create self-holding, self-resetting, and delayed start circuits. Its rugged solid-state design ensures repeatable operational timing across automated packaging machines, conveyor lines, machine tools, and process control systems. By delivering consistent delay functionality in a standardized form factor, the timer simplifies maintenance workflows and protects connected automation hardware against rapid switching cycles.