.... 61010-2-201 and CSA C22.2 No. 213) •FSPC (IEC 61508 and ISO 13849) Shipbuilding Standards NK, LK Item Specification Enclosure Mounted in a panel (open) Grounding method Ground to 100Ωor les...https://www.ia.omron.com/data_pdf/cat/nx-sl5_f124-e1_4_1_csm1124265.pdf