A dual-function breaker that won't differentiate between hot-to-neutral and hot-to-ground faults is missing half its protection. This 20-amp 120/240V dual Square D breaker provides both branch-circuit overcurrent protection and ground-fault equipment protection — the combination trip element responds to both overload and ground-fault conditions. The dual-voltage rating handles the full range of residential split-phase circuits. Standard in modern residential and commercial build-outs where AFCI and GFCI protection is required by code. In stock at Crofton Lumber (Crofton, NE) and Akron Lumber (Akron, IA) — ready for pickup today. Stocked at Crofton Lumber and Akron Lumber.