This Siemens QA115AFC circuit breaker is a high-quality plug-on combination AFCI breaker that is suitable for both interior and exterior use. With a maximum amperage of 20 A and a tripping characteristic of Type A, this breaker is designed to protect against short circuits and overloads. The breaker features a trip indicator and is mounted with a plug-in/on style. It has one port and is made of durable plastic material. This unit is 4 inches in height and has a voltage range of 101-150 V. It is a great addition to any electrical equipment and supplies and is perfect for branch circuit applications.