51 Series NCM Auto Switch Proper Mounting Position and Its Mounting Height (Block mount) Auto Switch Mounting Position (NCDMR) 075 (3/4") 106 (1-1/16") 150 (1-1/2") A 1.67 1.98 2.47 B 0.74 0.83 0.87 A 1.52 1.83 2.32 B 0.59 0.68 0.72 A 1.50 1.81 2.29 B 0.56 0.66 0.70 A 1.54 1.85 2.33 B 0.60 0.70 0.74 A 1.36 1.67 2.16 B 0.42 0.52 0.56 A 1.30 1.61 2.10 B 0.37 0.46 0.50 Auto switch model Bore size D-M9 D-M9W D-A9 D-H7 D-H7W D-H7C D-H7BAL D-H7NF D-C7 D-C80 D-C73C D-C80C D-G5NTL D-B5 D-B64 A 1.42 1.72 2.21 B 0.48 0.58 0.61 D-B59W (in) Auto Switch Mounting Position (NCDMR-*C) 075 (3/4") 106 (1-1/16") 150 (1-1/2") A 1.67 1.98 2.47 B 0.74 0.83 0.87 A 1.52 1.83 2.32 B 0.59 0.68 0.72 A 1.50 1.81 2.29 B 0.56 0.66 0.70 A 1.54 1.85 2.33 B 0.60 0.70 0.74 A 1.36 1.67 2.16 B 0.42 0.52 0.56 A 1.30 1.61 2.10 B 0.37 0.46 0.50 Auto switch model Bore size D-M9 D-M9W D-A9 D-H7 D-H7W D-H7C D-H7BAL D-H7NF D-C7 D-C80 D-C73C D-C80C D-G5NTL D-B5 D-B64 A 1.42 1.72 2.21 B 0.48 0.58 0.61 D-B59W (in) D-A9(V) D-M9(V)/M9W(V) Mounting Height (NCDMR and NCDMR-*C) 088 (7/8") 106 (1-1/16") 150 (1-1/2") .HS 0.91 0.96 1.06 .HS 0.93 0.98 1.08 .HS 1.02 1.12 1.22 .HS 1.04 1.14 1.24 Auto switch model Bore size D-M9 D-M9W D-A9 D-A9V D-M9V D-M9WV D-H7 D-H7W D-H7BAL D-H7NF D-C7 D-C80 D-C73C D-C80C D-G5NTL D-B5 D-B59W D-B64 (in) 0.88 B . HS 0.88 B . HS A A (0.98) ( ):D-A93 A A A B . HS 0.63 1.45 . HS B 0.96 . HS 0.63 B D-C73C/C80C D-B5/B6/B59W D-C7/C8 SMC SMC A A A B . HS 0.63 1.50 B . HS 1.30 0.96 . HS B 0.63 1.14 (1.42) D-H7C D-G5NTL D-H7/H7W/H7NF/H7BAL SMC SMC SMC SMC 1.30 1.02 0.66 0.66 0.88 B 0.66 A . HS Note 1) D-G5NTL, B5, B64, B59W cannot be mounted on models with bore size 044 and 056. Note 2) When setting an auto switch, confirm the operation and adjust its mounting position.