Time delay relay, 4PDT, 2–60 seconds
The Omron H3Y-4 AC200-230 60S is a socketable mechanical time delay relay from the H3Y series, offering both off-delay and on-delay functions with a hand-dial-adjustable range of 2 seconds to 60 seconds. It switches a 4PDT (4 Form C) contact set rated at 3A at 250VAC, powered by a 200 to 230 VAC supply via a plug-in termination style. The 3A at 250VAC contact rating covers most control-circuit loads — pilot lights, contactor coils, small solenoids — but not motor or heater power directly. The 4PDT arrangement gives four independent sets of changeover contacts, enough to sequence a small machine step or interlock multiple circuits from one timing event. Timing is initiated by applying input voltage; adjustment is via a hand dial on the relay face. The socketable, plug-in design means replacement or range changes take seconds without rewiring the panel.