🔍 Key Concepts

• Understand the difference between breaker contact position (open/closed/tripped) and racking position (connected/test/disconnected/withdrawn). • Look for how the main contacts and auxiliary contacts are drawn in each figure A–D. • Compare the physical handle position and cubicle position in figures E and F with the schematic representations in A–D.

💭 Think About

• In an open or tripped state, is the breaker usually still in the cubicle, or completely withdrawn on its rails? Which figures A–D show the breaker still aligned with the bus/stabs? • Which figure shows the main power path interrupted (a visible gap in the main contacts) while the breaker is still mechanically engaged in the switchboard? • How would the test or disconnected positions be drawn differently from the fully removed position? Which of A–D best matches that idea?

✅ Before You Answer

• Verify which figure keeps the breaker body at the same depth in the cubicle, indicating it is still racked in rather than fully withdrawn. • Identify where the main contacts are clearly shown as open (a break in the line) instead of closed. • Confirm that in the chosen figure, the auxiliary contacts and mechanisms could still operate, matching what you see in figures E and F when a breaker has tripped but not been rolled out.