CL20S3 Carlo Gavazzi

Proximity Magnetic Sensors Magnetic units CL Series Rectangular, cylindrical or trapezoidal housing Several dimensions Side or front operating mode Product Description Ordering Key CL 2 Magnetic units used for their minimum thickness Magnetic unit operating magnetic must be in accordance with Type proximity sensors consist of those one listed in table, in permanent magnets sharply parallel to the switch sized for the job they are longitudinal axis. intended. Their shape can be rectangular or cylindrical. Block-shaped magnetic units must be placed on non-magnetic supports, General Shape Housing material Magnetic material* Minimum separation** Reference Rectangular Plastic Alnico 10 CL1 Plastic Alnico 20 CL2 Plastic Alnico 30 CL3 Plastic Alnico 50 CL4 8 Cylindrical Plastic Alnico Not mandatory CL10 Plastic Alnico Not mandatory CL11 - Ferrite Not mandatory CL18 - Ferrite Not mandatory CL23 - Ferrite Not mandatory CL31 - Ferrite Not mandatory CL20S1 - Ferrite Not mandatory CL20S3 - Ferrite Not mandatory CL50 Trapezoidal Plastic Alnico Not mandatory CL90 Distances are specified in millimeters (mm) * see Magnetic Material Description table for more datails. ** minimum distance required between two magnetic units on the same axis. Magnetic Material Description The principal materials by which are realized the above mentioned magnetic units can be classified in: - Ferrite: is a mixture made of iron oxide and barium carbonate (or strontium) and is obtained through a dry or wet way sintering process. - Alnico: is a mixture made of iron, aluminum, nickel, cobalt and other elements in lower percentage it is obtained through fusion and its principal features are the hardness and the relative resistance to hits, the high value of mag netization and the possibility to be used to high temperatures. 8-66 Specifications are subject to change without notice (01.02.2008) Magnetic UnitsCL Series Type Selection Shape AB C D E F Reference Rectangular 14 25 2.7 8- - CL1 12 44.5 2.7 9- - CL2 18 59 3.2 9- - CL3 25 76 4.2 10 8 10 CL4 Cylindrical 9.3 M12x1.25 32 10.5 -- CL10 13.5 M18x1.5 65 11 -- CL11 18 36 6 - - CL18 23 4.5 9 10 -- CL23 31 4.5 10 10 -- CL31 25.1 4.8 10.5 9.8 -- CL20S1 22.1 4.8 10.5 9.8 -- CL20S3 50 0 10 0- - CL50 Trapezoidal 31 90 6.5 22.5 -- CL90 Dimensions are specified in millimeters (mm) Dimensions Sez x-x D S D B C C A B N A D C x x A E F B CL10 CL11 CL1 CL2 CL3 CL4 8 CL18 CL23 CL31 Dimensions (cont.) Sez x-x 7.6 CL20S3 only Sez x-x D S 54 9.3 0.8 C 4.8 D 0.8 22.5 4 B 25.1 0.8 N 90 A B 75.5 31 A 16.5 x x 3 x x 4.5 4 C CL20S3 CL50 CL90 CL20S1 Specifications are subject to change without notice (01.02.2008) 8-67 Magnetic Units