A residential property has a security system that requires a 20A, 120/240V control circuit. The wire size required for this circuit is determined by which NEC section?
- AArticle 210
- BArticle 220
- Article 240
- DArticle 300
Exam tip
Remember that control circuits are covered under Article 240.
Why C is correct
The correct answer is Article 240 because it covers the installation of services, feeders, and branch circuits, which includes control circuits for security systems.