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NABCEP Solar: DC and AC Disconnects Basics for PV Systems
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Avg score: 78% Most missed: “Disconnects are required for:”

Disconnects allow safe isolation of PV systems for service and emergency response.
• DC disconnect: between array and inverter.
• AC disconnect: between inverter and service panel/utility.

NABCEP Solar: DC and AC Disconnects Basics for PV Systems
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8 Questions

1. Disconnects are required for:
2. Visible blade disconnects are preferred because:
3. Disconnect ratings must match:
4. Opening a DC disconnect under load can:
5. An AC disconnect is typically located:
6. NEC labeling is required to:
7. A DC disconnect isolates:
8. Utility-interactive systems often require: