A knife switch assembly including a pair of hinged contact knives, arranged in parallel, and moveable between at least two positions. An operator device for moving the pair of contact knives between the at least two positions, and a guide member located between the two contact knives, having two projecting side parts, each projecting side part extending along at least part of a respective side of each contact knife, which side faces a corresponding side of the other contact knife.

A knife switch assembly including a pair of hinged contact knives, arranged in parallel, and moveable between at least two positions. An operator device for moving the pair of contact knives between the at least two positions, and a guide member located between the two contact knives, having two projecting side parts, each projecting side part extending along at least part of a respective side of each contact knife, which side faces a corresponding side of the other contact knife.

A knife switch assembly including a pair of hinged contact knives, arranged in parallel, and moveable between at least two positions. An operator device for moving the pair of contact knives between the at least two positions, and a guide member located between the two contact knives, having two projecting side parts, each projecting side part extending along at least part of a respective side of each contact knife, which side faces a corresponding side of the other contact knife.