Reverse Forward switches are used of the controlling the direction the motors. To move motor in forward or reverse direction R/F switches are preferred as compare to general contractors. This switches usually used with a rating of 25A, 32A, 40A, 63A as per industrial requirements or standards. Ziegler R/F comes IEC 60947-3 standards to control motor in forward or reverse direction with 2 Pole or 3 Pole option.