A rotational coupling device, comprising: a hub configured for coupling to a shaft for rotation with said shaft about an axis of rotation; a rotor supported on said hub and configured for rotation relative to said hub about said axis of rotation, said rotor defining a radially extending wall; an armature supported on said hub for rotation therewith, said armature axially spaced from said radially extending wall of said rotor a first clutch plate disposed axially between said radially extending wall of said rotor and said armature, said first clutch plate coupled to said hub for rotation therewith, but axially movable relative to said hub; a second clutch plate disposed axially between said radially extending wall of said rotor and said armature, said second clutch plate coupled to said rotor for rotation therewith, but axially movable relative to said rotor; and, a third clutch plate (38, 40) disposed axially between said radially extending wall of said rotor and said armature, said third clutch plate (38, 40) coupled to one of said hub and said rotor for rotation therewith, but axially movable relative to said one of said hub and said rotor; a field shell disposed about said hub and said axis of rotation on an opposite side of said radially extending wall of said rotor from said armature, said field shell housing a conductor therein; wherein said armature and said first, second, and third clutch plates (36, 34, 38, 40) are configured for movement in a first axial direction towards said radially extending wall of said rotor upon energization of said conductor to thereby cause frictional engagement of said first, second, and third clutch plates (36, 34, 38, 40) and coupling of said rotor to said hub for rotation therewith and are configured for movement in a second axial direction opposite said first axial direction upon subsequent deenergization of said conductor, characterized by said one of said hub and said rotor including first means (90, 156), disposed between a corresponding one of said first and second clutch plates (36, 34) and said third clutch plate (38, 40), for limiting movement of said corresponding one of said first and second clutch plates (36, 34) in said second axial direction, said first limiting means (90, 156) not opposing movement of said corresponding one of said first and second clutch plates (36, 34) and said third clutch plate (38, 40) in said first axial direction. a hub configured for coupling to a shaft for rotation with said shaft about an axis of rotation; a rotor supported on said hub and configured for rotation relative to said hub about said axis of rotation, said rotor defining a radially extending wall; an armature supported on said hub for rotation therewith, said armature axially spaced from said radially extending wall of said rotor a first clutch plate disposed axially between said radially extending wall of said rotor and said armature, said first clutch plate coupled to said hub for rotation therewith, but axially movable relative to said hub; a second clutch plate disposed axially between said radially extending wall of said rotor and said armature, said second clutch plate coupled to said rotor for rotation therewith, but axially movable relative to said rotor; and, a third clutch plate (38, 40) disposed axially between said radially extending wall of said rotor and said armature, said third clutch plate (38, 40) coupled to one of said hub and said rotor for rotation therewith, but axially movable relative to said one of said hub and said rotor; a field shell disposed about said hub and said axis of rotation on an opposite side of said radially extending wall of said rotor from said armature, said field shell housing a conductor therein; wherein said armature and said first, second, and third clutch plates (36, 34, 38, 40) are configured for movement in a first axial direction towards said radially extending wall of said rotor upon energization of said conductor to thereby cause frictional engagement of said first, second, and third clutch plates (36, 34, 38, 40) and coupling of said rotor to said hub for rotation therewith and are configured for movement in a second axial direction opposite said first axial direction upon subsequent deenergization of said conductor, characterized by said one of said hub and said rotor including first means (90, 156), disposed between a corresponding one of said first and second clutch plates (36, 34) and said third clutch plate (38, 40), for limiting movement of said corresponding one of said first and second clutch plates (36, 34) in said second axial direction, said first limiting means (90, 156) not opposing movement of said corresponding one of said first and second clutch plates (36, 34) and said third clutch plate (38, 40) in said first axial direction.