ABB 2TLA020005R1800 Safety Relay Module 2-Channel

ABB 2TLA020005R1800 is the JSHD4 Bottom Part AJ, a dual‑channel safety relay module that combines a cable gland and a printed circuit board in a single bottom housing for the ABB Jokab Safety guard system. This bottom section is designed to pair with the JSHD4 AJ top housing to form a complete 2‑channel safety controller used to monitor two independent protective circuits on industrial machinery. It features a robust 16‑pole screw clamp terminal block for wiring, enabling secure connections to the two safety channels plus their associated power and diagnostic lines, and the integrated cable gland provides a tidy, protected entry for field cabling. Typical applications include machine guarding configurations where two separate safety paths—such as protective interlocks and emergency stop circuits—must be monitored concurrently to ensure safe machine shutdown. As part of the Jokab Safety family, the 2TLA020005R1800 bottom part AJ is specified for installations that require a compact, modular approach to dual‑channel safety control, allowing operators to configure a reliable two‑channel safety loop with a dedicated top and bottom housing. This component is commonly used in safeguarding configurations for presses, conveyors, and automated equipment where redundancy and independent channel monitoring are essential to meet safety requirements, while providing straightforward wiring through the 16 terminals and a durable, cable‑gland–equipped bottom enclosure.