What this terminal module does in a harsh-environment ET 200S rack
The 6AG1193-4CB30-2AA0 is a SIPLUS ET 200S TM-E15C24-01 terminal module — the physical interface that carries field wiring to the electronic module in a 15 mm-wide slice of the ET 200S distributed I/O system. It uses spring-loaded terminals for 2x4 connections and omits terminal access to AUX1 (AUX1 continuous).
Environmental resilience and altitude derating
The module is rated for installation altitudes up to 5 000 m, with a derated temperature envelope above 2 000 m: at 2 000–3 500 m the max ambient drops by 10 K, and at 3 500–5 000 m it drops by 20 K. This matters for high-altitude mining or mountain-top installations where standard IP20 gear struggles. It also meets ANSI/ISA-71.04 environmental severity levels GX (harmful gases up to EN 60721-3-3 class 3C4 limits, excluding trichlorethylene), LC3 (salt spray), and LB3 (oil). That covers offshore platforms, chemical processing, and food-processing washdown zones.