Siemens 3SE5114-0KA00-1AE1 Enclosure width 40 mm acc. to EN 50041. Siemens 3SE5114-0KA00-1AE1 is the exact printed commercial reference for a limit or safety switch in the SIRIUS 3SE range. Siemens' official product description is: Basic switch for position switch 3SE51 Metal enclosure 40 mm according to EN 50041, with M12 connector, 5-pole, fixed 1 NO/2 NC slow-action contacts (2 NC and PE connected) Max. 125 V, 4 A.