Yokogawa EA0A PLC Module EAOA AS-E9740EA-04 Isolator ASE9740EA04 EA0A EAOA

Description:

The Yokogawa EAOA (EA0A) AS-E9740EA-04 is a PLC signal isolator module used in industrial control systems to electrically isolate field signals from the control system. It helps protect PLC hardware from noise, voltage spikes, and ground loops while maintaining accurate signal transmission. This module is typically part of Yokogawa signal conditioning or I/O interface systems and is often used as a replacement or maintenance component.

Applications:

The Yokogawa EAOA isolator module is used in process control systems, DCS/PLC environments, and industrial automation setups. The module is commonly installed between field devices (sensors, transmitters) and PLC input/output modules to ensure stable and interference-free signal transmission in manufacturing, oil & gas, and utility systems.

Technical Specifications:

• Manufacturer: Yokogawa
• Model / Part Number: EAOA / EA0A
• Assembly Number: AS-E9740EA-04
• Product Type: PLC Signal Isolator Module
• Function: Electrical isolation and signal conditioning
• Installation: Rack or panel-mounted PLC system
• Application: Industrial control and process systems
• Condition: Commonly available as surplus/used inventory

Common Replacements:

• Yokogawa signal conditioner cards (EA / EC / EP series)
• Yokogawa VJ series signal isolators
• Generic DIN-rail signal isolators (application dependent)