Ferrxocube EP cores and accessories EP20 MOUNTING PARTS General data ITEM REMARKS TYPE NUMBER Clasp Steel, Sn plated , earth pins solderability acc. to “IEC 60 068-2-20”, Part2, Test Ta, method 1: 235°C, 2s. CLA-EP20-Z Spring Copper-tin alloy (CuSn) tin (Sn) plated SPR-EP20-Z