... Transformer Key Specifications/Special Features:Dimensions in mm (inches): A, B, C1, C2, E1, E2, E3, F, FIG RM-4: ... FIG=2 RM-8: terminal pins = 12, A=17.5, B=23.5, C1=3.6, C2=7.2, E1=14 ... FIG=2 RM-10: terminal pins = 12, A=19.6, B=28.5, C1=3.6, C2=7.2, E1=18 ... FIG=2 RM-12: terminal pins = 12, A=24.5, B=38.5, C1=3.6, C2=10.8, E1=21 ... 2, FIG=2 RM-4: terminal pins = 12, A=29, B=43.4, C1=35.6, E1=5.08, E2=7.62 ...