The OCAL 734A Industrial Automation Relay Module is a blue-colored relay block that serves as a discrete switching interface within OCAL automation systems. Identified by the 734A model number, this module is designed to be integrated into control panels to switch electrical loads controlled by a PLC and to connect field devices to the control logic. In typical applications, it expands a system’s relay outputs for machines and processes, enabling simple, reliable control of indicators, actuators, and signaling devices in industrial environments.
