Reverse Forward D.O.L Starter | Power Circuit | Controlling Circuit

[@StreetArtistsOfTheWorld]

What is that grey wire?? (it appears around 2:51)
Also, the connections of the grey wire to contacter 1 and contacter 2 is not clear :(

[@PharmaEngineeringMech.Elec.]

Grey Wire For Holding

[@mazmaz5136]

FOR CCW SHOULD REVERS TWO WIRE AM I RIGTH . PLASE LET ME KNOW

[@PharmaEngineeringMech.Elec.]

Yes