Cable limit switch for Demag AC 615

The cable limit switch, part number 30098540, serves as an electromechanical safety component within the hoisting system of the crane. Its primary function is to detect the position of the hoist cable and trigger a signal or interrupt power to the hoist motor when the hook or load reaches a pre-set limit. This mechanism effectively prevents contact between the hook block and the boom tip, known as two-blocking, and protects against excessive cable payout from the drum.

This component is specifically configured for integration with the control systems of the Demag AC 615 all-terrain crane. It is designed to interface with the crane's existing safety architecture to ensure that lifting operations remain within established operational parameters. By providing precise feedback on the vertical position of the hook, the switch assists in maintaining the structural integrity of the boom and the hoisting assembly during daily operation.

Limit switches of this type function by utilizing a mechanical actuator that responds to the movement of the cable or hook assembly. When the limit is reached, the mechanical action closes or opens an internal electrical contact, which communicates with the crane's safety controller to halt movement. These devices are engineered to operate reliably within the electrical and mechanical constraints of the crane's hoist system.