Ultimate Limit Switch

The Ultimate Limit Switch is designed to cut the crane out once the limiter gets to a designated point on the lift. The rising block (hook) lifts the weight off the switch causing the switch mechanism to open. This can be used to drop out the mainline contactor, the UP contactor or a signal to a variable speed drive such as Power Electronics® Micro-Speed® drives for overhead hoists.

This device, along with the overload system, can save thousands of dollars in maintenance and repair costs per year.