What is the minimum branch-circuit demand for one wall-mounted oven with a nameplate rating of 20A at 240V?

Prepare for the Independent Electrical Contractors (IEC) Year 4 Exam. Access flashcards, multiple choice questions, and detailed explanations. Enhance your readiness and achieve your certification!

Multiple Choice

What is the minimum branch-circuit demand for one wall-mounted oven with a nameplate rating of 20A at 240V?

Explanation:
For sizing a branch circuit for a single fixed cooking appliance, you use the appliance’s nameplate rating as the load. The oven is rated at 240 V and 20 A, so its maximum power draw is 240 × 20 = 4,800 watts. The minimum branch-circuit demand is therefore 4,800 watts. This reflects supplying the full rated load of one unit; no reduction or extra factor is applied for a lone appliance. The other values come from applying different factors that don’t apply to a single non-continuous cooking appliance.

For sizing a branch circuit for a single fixed cooking appliance, you use the appliance’s nameplate rating as the load. The oven is rated at 240 V and 20 A, so its maximum power draw is 240 × 20 = 4,800 watts. The minimum branch-circuit demand is therefore 4,800 watts. This reflects supplying the full rated load of one unit; no reduction or extra factor is applied for a lone appliance. The other values come from applying different factors that don’t apply to a single non-continuous cooking appliance.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy