I have wired up alot of these with good results for single phase for/rev op, i have an ml7 booklet and i use 1 and 3 for 240V ac input, 2 and 6 for St winding and 5 and 7 for Run winding (as the booklet states), i have two of these type A switches with the link from 2 and 5 missing, what i have done is used the bottom link (4 to 8 as these are only used in 3 phase). All this now does is put a dead short across the ac input (1 and 3), it seems strange that i have two switches exactly the same?? Has anyone come across this before, the motor i have is a good quality English 1/2hp which works well on just 240V in and would suffice as it runs spot on but i would like the reverse as well, The short is measured with no wires connected to eliminate wiring problems and is the same on both switches. of course with the switch in the off mode no short is there, when in either forward or reverse the 0 ohm dead short appears. Thanks for any help!! Paul.