The Square D QOB220 20 A Miniature Circuit Breaker is a reliable and efficient electrical component designed for use in various industrial and commercial applications. With a maximum amperage of 20 A and voltage rating of 120/240 Vac, this miniature circuit breaker is suitable for handling currents ranging from 16-30 A. Featuring two poles, the Square D QOB220 model provides protection and isolation for electrical circuits, making it a crucial component in electrical equipment and supplies.