Contact arrangements for providing make-before-break operation, e.g. for on-load tap-changing

Full Title

Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand > Details > Movable parts; Contacts mounted thereon > Contact arrangements for providing make-before-break operation, e.g. for on-load tap-changing