The Omron H5CZ-L8E AC100-240 is a programmable multi-function time delay relay from the H5CZ series, socketable with an 8-pin octal base. The SPDT (1 Form C) output switches 5 A at 250 VAC — that is the resistive contact rating, so derate for inductive or motor loads per the manufacturer's curve. The delay range spans 0.001 seconds to 9999 hours, set via up/down digit keys, which covers everything from a quick pulse to a multi-day process hold. Supply is 100–240 VAC, meaning it runs on common line voltages without a separate control transformer in most panels.
Octal plug-in base means it drops into an existing 8-pin socket — no hardwiring the relay itself, which speeds a swap when a line timer fails. The timing initiate method accepts either input voltage or a trigger signal, so it works both as a power-on delay and as a signal-triggered one-shot or cycle timer. Panel builders typically mount the socket on DIN rail or a panel plate; the relay then plugs in after wiring.