Square D QO 20/20A Single-Pole Tandem Circuit Breaker is a versatile electrical circuit protection device that the convenience of two circuits in the space typically occupied by a single circuit breaker, making it i for applications where space is limited. This tandem circuit breaker is designed to provide reliable overload and short-circuit protection for electrical systems and is compatible with QO load centers, CSED devices, and NQOD panel boards. It features the exclusive Visi-Trip indicator, which gives a clear visual signal when the breaker has tripped by snapping the handle to a midpoint position and displaying a highly visible red indicator. by ANSI and listed by UL, this breaker ensures safety and performance. It is rated for both 120 volts and 240 volts and has a 10,000 Ampere Interrupting Rating (AIR). Specifically designed for use in load centers manufactured after 1967 that are not modern QO Plug-on Neutral load centers, it provides efficient and dependable circuit protection for a variety of electrical applications. Model Number: QOT2020CP