🔍 Key Concepts

• Look at the breaker size shown for circuit No. 2 (2L110) on panel L110 in the illustration. • Review 46 CFR 111.75-5 – Lighting branch circuits, especially the part that limits the maximum continuous load on a lighting circuit relative to the circuit breaker rating. • Remember the relationship between percent of breaker rating and the actual amperes allowed on the circuit.

💭 Think About

• First, identify the ampere rating of the circuit breaker protecting 2L110 from the panel schedule. What does that tell you about the rated current of the circuit? • Next, ask: under 46 CFR 111.75-5, can a lighting branch circuit be loaded all the way up to the full breaker rating, or only to a fraction of it? What is that fraction? • Once you know that fraction, multiply it by the breaker rating you found for 2L110 and compare your result to the answer choices.

✅ Before You Answer

• Verify the exact breaker rating (in amperes) printed next to 2L110 on the panel board diagram. • Confirm from 46 CFR 111.75-5 the maximum allowed percentage of breaker rating for lighting branch circuits (e.g., 80% vs 100%) — do not guess, read the rule text. • After you calculate the allowable current, make sure the unit (amps) and value line up exactly with one of the choices before selecting.