Electrical Diagrams: Overall and Mounting Dimensions 2. Descriptive Sentence (Formal) If you are explaining what a document contains:
Габаритные чертежи и электрические схемы соединений shemy jelektricheskie razmery
The phrase (transliterated from Russian схемы электрические размеры ) translates to "electrical diagrams: dimensions." Electrical Diagrams: Overall and Mounting Dimensions 2
To make this a "proper text," the wording depends on what you are trying to describe. Here are three ways to refine it based on common professional contexts: 1. Technical Title or Heading If you are labeling a document or a section of a manual: shemy jelektricheskie razmery
Схемы электрические: Габаритные и установочные размеры
I can refine the grammar further if you are looking for a specific instructional or descriptive tone.