Power check and powertrol fail in what position?

• A. Open
• B. Neutral
• C. Closed
• D. Locked

Answer: (C)

Power checks test whether the main power path can energize the load when the control is commanded to connect power. The powertrol is designed to complete the circuit only in the position that closes the power path. If a power check fails when the powertrol is in that closed position, it means something in the power path (cable, breaker, interlock, or switch) is preventing power from reaching the load even though the control is telling it to close. Other positions intentionally interrupt or isolate the circuit, so a power check in those states isn’t testing the actual energized path. That’s why the fail condition is associated with the closed position.