🔍 Key Concepts

• Compare a connection wiring diagram vs an elementary schematic: one focuses on terminal-to-terminal wiring, the other on how the circuit functions. • Look at how many phase conductors are drawn: think about what a true one-line diagram normally shows for a 3‑phase system. • Ask yourself whether this drawing is showing logic gates/Boolean logic or actual electrical contacts, overloads, and a motor starter.

💭 Think About

• Do you see individual symbols for contacts, overload relays, and push buttons arranged to show how current flows, or do you see a picture of each device with terminal numbers and cable runs? • If this were a one-line diagram, how would the three phases L1, L2, and L3 likely be represented differently from what you see here? • Does the layout look more like a control-circuit explanation for how a motor is started and protected, or like a high-level power-distribution overview?

✅ Before You Answer

• Check whether the diagram shows three separate phase lines (L1, L2, L3) or condenses them into a single line. • Check if device terminal numbers and physical mounting locations are emphasized (typical of a wiring/connection diagram) or if the focus is on symbolic contacts and coils (typical of an elementary schematic). • Confirm that there are no logic gate symbols (AND, OR, NOT blocks), which would be expected in a true logic diagram.