Siemens 3SE5132-0CD05 Enclosure width 40 mm acc. to EN 50041. Siemens 3SE5132-0CD05 is the exact printed commercial reference for a limit or safety switch in the SIRIUS 3SE range. Siemens' official product description is: position switch plastic enclosure 40 mm according to EN 50041 device connection 1 x (M20 x 1.5) 1 NO/1 NC quick action contacts roller plunger, form C with plastic roller 13 mm.