LG 5929Performance Level (PL) e and Category 4 according to EN ISO 13849-1: 2008, SIL claim limit (SIL CL) 3 according to IEC/EN 62061, Safety Integrity Level (SIL) 3 according to IEC/EN 61508, Category 4 according to EN 954-1, 1 break contact for feedback circuit, operating status display, width 22.5 mm