OPTO 22 000228Y Printed Relay Circuit Board Module is a 22-relay card-PCB designed to expand discrete control in automation systems. It packs 22 individual relays onto a single printed circuit board, delivering a compact multi-channel relay solution for projects that require multiple switching outputs. With the OPTO 22 part number 000228Y, this relay board serves as a dedicated interface option for control panels and automation installations needing reliable relay-based switching.
