The OPTO 22 001508B Circuit Board Card Relay provides isolated relay outputs for OPTO 22 I/O and control systems, enabling discrete switching of AC and DC loads in industrial panels. This multi-layer printed circuit board is chassis- or rack-mounted and uses optical isolation to deliver relay output capability, associated with the PB8DAAD assembly (Part Number 001508B). Commonly used in PLC systems, machine control, and process automation, it is designed for OPTO 22 I/O and control systems and is often sourced as a legacy OEM replacement component through surplus suppliers.
