A 30-amp breaker that doesn't trip on a dead short, or trips on a vacuum cleaner, is either dangerous or a callback. This 30-amp 120/240V dual Square D breaker is the heavy-lift of residential circuits — it handles the full 30-amp draw of electric dryers and ranges and trips precisely at the thermal and magnetic thresholds code specifies. The dual-function protection covers both standard overcurrent and ground-fault conditions in one unit. Standard in homes across the Midwest because it holds up to real use. In stock at Crofton Lumber (Crofton, NE) and Akron Lumber (Akron, IA) — ready for pickup today. Stocked at Crofton Lumber and Akron Lumber.