LS31P81C11-S is a 30 mm wide, standard Safety Limit Switch made of fiber-glass reinforced UL-V0 material, with 2 mounting holes at the top, 1 Pg11 cable entry on the bottom, orientable (90°) for key actuator and 1 N.O + 1 N.C slow action (Zb type), overlapping (early closing) contacts