Potentially dangerous arc faults are often unseen and may be caused by damaged wiring or a host of other conditions. Leviton Arc Fault Circuit Interrupter (AFCI) Outlets detect hazardous arc-faults and interrupt power to protect your home and family from the risk of electrical fires. AFCIs should be installed in all living areas such as living rooms, bedrooms and kitchens as required by the National Electrical Code (NEC).