PSR-SCP-24DC/URML4/3X1/1X2/B - Single or two-channel contact extension for OSSD signals (e.g., light grid), 3 N/O contacts, 1 N/C contact, up to Cat. 4 PL e according to EN ISO 13849, SIL 3 according to EN IEC 62061, plug-in screw terminal blocks, width: 22.5 mm