Modularly assembled control panels

A control panel for operation of an electrical power system, comprising:

• a control panel frame including a front support and a back support;
• one or more cross braces extending between the front support and the back support, the one or more cross braces to delineate between a first module and a second module;
• and
• the first module and a second module;
• wherein the first and second modules are each selected from a plurality of pre-defined modules, and wherein each module of the plurality of pre-defined modules comprises discretely wired and self-contained to independently perform an electrical function pertaining to operation of an electrical power system, each module of the plurality of pre-defined modules including:
• components to perform the electrical function;
• the components comprising a mechanical arrangement to facilitate human interaction, use, and independent manufacture and testing of the module;
• electrical connections configured to interface with electrical connections of other modules of the plurality of modules and with other equipment of the power system;
• logical connections between the components to perform the electrical function;
• and
• logical interfaces for logical connection with other modules or other equipment of the power system;
• and
• one or more DIN rails extending between two cross braces, each of the one or more DIN rails configured to have the components mounted thereto;
• wherein each module is mounted in the control panel frame.