In international engineering projects, the 6ES7400-2JA00-0AA0 sees extensive use due to its robustness and compliance with global standards. It is a common sight in large automotive production lines across Europe and North America, where it provides the critical backbone power for the controlling S7-400 PLCs that manage robotic assembly units. The widespread adoption of the 6ES7400-2JA00-0AA0 is also evident in major chemical processing plants throughout Asia and the Middle East. In these facilities, its ability to deliver clean, stable power is paramount for ensuring the accurate operation of process control systems that govern continuous production and safety interlocks. The reliability of the 6ES7400-2JA00-0AA0 makes it an indispensable component in such mission-critical applications worldwide.