OKUMA E4809-770-033-1 is a relay circuit board designed for compatible OKUMA CNC machine-tool control systems. Identified as RELAY CARD1-1, it supports relay-based switching functions within the machine’s control circuitry. The board is used in industrial CNC equipment maintenance, troubleshooting, and replacement applications. It is suitable for repair or replacement when the original board is faulty. Before installation, verify the part number, connector arrangement, and compatibility with the existing control system. [stock available]