Abstract: A coupling for an electrosurgical cable of a surgical instrument includes insulative contact collars arranged in a stack-like manner, each contact collar having a flange supporting a contact ring thereon. The contact rings configured for electrical engagement with electrical leads of the electrosurgical cable. Contact wires configured to engage corresponding contact rings at one end and a jumper wire at the other end thereof, the jumper wires, in turn, couple to an activation switch of the surgical instrument. A locking bobbin envelops the contact collars to lock contact wires in secure engagement with the contact rings. The locking bobbin locks within the surgical instrument preventing the contact wires from rotating within the surgical instrument while permitting the contact collars, the contact rings and the electrosurgical cable to rotate relative to the surgical instrument.