Which device is used to grasp a life safety rope for supporting a load during rescue operations?

The rope grab device is specifically designed to secure a life safety rope and support a load during rescue operations. This device is built to grip the rope under load, allowing it to slide freely when the load is not present and lock in place when weight is applied. This locking mechanism is crucial during rescues, as it prevents accidental drops and provides a reliable means of securing an individual or equipment while being lifted or lowered.

In the context of rescue operations, utilizing a rope grab enhances safety and efficiency. Each device has its purpose; a safety harness is utilized to secure the individual being rescued, while ascenders are typically used for climbing purposes rather than supporting loads. Carabiners are essential for connecting various elements within a rescue system but do not provide the same load-supporting capability as a rope grab device.