Contact arrangement 1a(spstno) 1b(spstnc) 1c spdt(b-m) Contact materia Agni agsno2 Contact rating (resistive) 1a, 1b, 1c: 10a/120vac, 28vdc 20a/14vdc ; 1u, 1v, 1w:2x10a/120vac, 28vdc 2x20a/14vdc ; Max. Switching power 1c: 280w 1200va 1w: 2 280w 2 1200va Max. Switching voltage75vdc 380vac max. Switching current:20a Contact resistance or voltage drop=5pmo item 4 .12 of iec 61810-7 DimensionOpen type :13.2 x 15.3 x 18 dust covered :17.5 x 15 x 20 Operation life Electrical105 item 4.30 of iec 61810-7 Mechanical107 item 4.31 of iec 61810-7