Panel-builder commissioning notes
The H5S-YFB4-X is a programmable multi-function time delay relay with four independent SPST-NO (1 Form A) outputs, each rated 3A at 250VAC. Supply voltage is 100–240VAC, and the delay range spans 1 minute to 1 year — set via Up/Down digit keys on the front panel. Timing is initiated by applying input voltage, so the relay starts its count as soon as the supply is energized. The four Form A contacts are electrically isolated; each can be programmed independently for on-delay, off-delay, interval, or other timing functions depending on the model variant.