52 Series NCM Auto switch model On different surfaces On the same surface On different surfaces Number of switches 0.6 + 1.8 (n . 2) 2 (n = 2, 4, 6...) 2 n On the same surface 0.6 Note 2) 1.8 0.6 2.3 1.8 + 1.8 (n . 2) (n = 2, 4, 6...) 1.4 + 1.2 (n . 2) (n = 2, 4, 6...) 2.3 + 1.8 (n . 2) (n = 2, 4, 6...) 1 0.4 0.4 0.4 D-M9 D-M9W D-A9 0.6 1.4 D-M9V D-M9WV D-A9V (in) Minimum Stroke for Auto Switch Mounting 0.6 + 1.2 (n . 2) 2 (n = 2, 4, 6...) Auto switch model With 2 auto switches On different surfaces On the same surface Less than 0.8" stroke . Less than 2" stroke D-M9 D-M9W D-A93 Auto switch D-M9 D-M9W (in) 0.6 + 1.8 (n . 2) 2 (n = 2, 4, 6...) 0.6 2.3 2.3 + 1.8 (n . 2) (n = 2, 4, 6...) D-C7 0.4 D-C80 0.6 + 2 (n . 2) 2 (n = 2, 4, 6...) 0.6 3.1 3.1 + 2 (n . 2) (n = 2, 4, 6...) 0.4 D-H7C D-C73C D-C80C 0.6 + 2 (n . 2) 2 (n = 2, 4, 6...) 0.6 2.8 2.8 + 2 (n . 2) D-G5NTL (n = 2, 4, 6...) 0.4 0.6 + 2 (n . 2) 2 (n = 2, 4, 6...) 0.6 2.7 2.7 + 2.2 (n . 2) (n = 2, 4, 6...) 0.4 D-B5 D-B64 0.8 + 2 (n . 2) 2 (n = 2, 4, 6...) 0.8 2.9 2.9 + 2.2 (n . 2) D-B59W (n = 2, 4, 6...) 0.6 0.6 + 1.8 (n . 2) 2 (n = 2, 4, 6...) D-H7 D-H7W D-H7BAL D-H7NF Note 1) D-G5NTL, B5, B64, B59W cannot be mounted on models with bore size 044 and 056. Note 2) When two D-M9, M9W, or A93 type auto switches are mounted on models with bore size 044. 0.24 0.24 0.6 A B B-0.24 A-0.24 The proper mounting position is 0.24" inward from the end face of the switch holder. The switches are mounted in staggered positions in a direction (toward the outer circumference of the cylinder tube) in which the switches and lead wires will not interfere with one another.