CEI 61010. IEC 61010. Safety base with solder lug. SEP 2630 S1.9, Hirschmann CAT II 4mm safety system socket that is contact-protected, and with a 1.9 mm soldering spike of gold-plated brass construction. These safety connectors are ideal for installation into switchpanels and equipment chassis with wall thicknesses from 1 to 10 mm. The soldering spike can be soldered into printed boards if desired. 4 mm flush-mount safety base, with 1.9 mm soldering pin Quick mounting on front faces with thicknesses between 1 and 10 mm Installation hole 12.2mm Temperature range -40 to +80° C