The elebia automatic crane hooks & lifting hooks CAN NOT DROP SUSPENDED LOADS under it's fail-safe design. It is designed in a way that makes it impossible to drop suspended loads. It will ONLY release a load if the suspended weight is under a certain value.
This limit can be set to a different value if necessary, to ensure the lifting operation is even safer. This can be made by modifying the parameter P. of the specified/chosen hook.
Here you can find the maximum releasable load table for the evo range of automatic hooks and the NEO20 & NEO50 lifting hooks.