The ABB AF2050-30 is a heavy-duty, 3-phase (3-pole) block-type power contactor designed for high-current, high-power industrial applications. It belongs to ABB’s large-contact AF series, optimized for demanding loads such as large motors, generators, heavy distribution circuits, or industrial switchgear. The contactor is built with an electronic wide-range coil allowing operation with AC or DC control voltages (100–250 V), and includes surge-protection capabilities — making it suitable even in networks with unstable supply or voltage dips. Its robust construction supports reliable isolation, bypass, distribution, or motor-control tasks up to 1000 V.

The 43AP-PA42N/TA-1A is a precision signal conditioning module from Foxboro's 43AP series, designed for reliable signal processing in industrial automation systems. This unit provides electrical isolation and signal conversion between field instruments and control systems.

The Yokogawa SDV531-L23 is a digital output module designed for use in safety instrumented systems (SIS), particularly within the ProSafe-RS series. This module provides 8 isolated digital output channels, each delivering 24 V DC signals, suitable for controlling field devices such as solenoids, relays, and actuators.