Is This the components of development module for the power supplies

In control supply stock, There is a “cutoff Module” as a change module for the power supply to guarantee a secured control supply even still loads for instance when the engine begins and the particular activating of circuit breakers as the rundown says. Regardless, I can’t get a handle on what completely limit modules are? it is protected to express that they are a reaction for spreading over at the present time control supply dissatisfactions? In what limit may they be utilized as a bit of instituting particular electrical switch?
This is the connection to the capacity module, C150S24 - 24V (22.8 ~ 24.7 V) as the datasheet of C150S24 for power supply catalog.

Would anyone be able to help me? I am extremely puzzled about this inquiry.

Much obliged and Best Regards.