The SIEMENS SIMATIC S7-400 CPU 414-3 is a high-performance central processing unit designed for industrial automation systems. It boasts an extensive memory capacity, integrated MPI/DP and PROFIBUS DP interfaces for seamless communication, making it ideal for complex control tasks.

The ABB 3HAC16036-1 BU with Buttons is an advanced industrial control module designed for precision and reliability in manufacturing environments. It integrates user-friendly control buttons for enhanced operator interaction and process management.

The ABB BC7‑30‑10‑2.4 is a compact 3‑pole mini‑contactor from ABB’s BC7 family, designed for switching small to medium 3-phase or single-phase AC loads, as well as general-purpose resistive or motor loads. The “2.4” suffix indicates a low-power DC coil variant (17–32 V DC, 2.4 W), which enables control from low-voltage DC control circuits, such as PLC outputs or control logic systems. The contactor provides three main normally‑open contacts (3 NO) for the main circuit and one auxiliary normally‑open contact (1 NO) for control or signaling use. Its compact size, modest power ratings, and low coil power consumption make it suitable for control panels, building automation, small motor starters, HVAC, lighting, and other light-to-medium duty switching applications.