Limit switches, series XCK M, in separate components Metal limit switches, Classic XCK M series, as separate components. The complete device comprises a contact body shell, a head and a lever. Conduit: 3 PG 11 Casing dimensions: (mm) 62 x 60 x 30 Operating temperature: -25 °C → +70 °C Protection index: IP 66 // 67 Standards   VDE 0660-200, UL 508 IEC 94-7-1, NFC63146 Telemecanique, Square D & Crouzet