7541229 – iM1 – 121EX – R/Trennschaltverstã ¤ rker 1 Channels ATEX, IECEx, UL, Cfmus, CSA, TR Copper, Nepsi, engraved, Tiis, Ccoe, use in zone 2 2 relay Ausgã ¤ nge (Schlieãÿer), impact direction adjustable â (working/idle current performance), Summenstã Rmeldeausgang, Ãœberwachung the input circles on wire break and short â (on/off) all sided with galvanic separation