The 1SBE111111R0420 is a 3-pole, circuit breaker manufactured by ABB, mainly used in residential and commercial electrical systems. It is designed to protect against electrical overloads, short circuits, and other system disturbances. The breaker is UL 489 rated and CSA certified, making it safe for use in accordance with Canadian and US electrical standards. The breaker is typically used in industrial and commercial single-phase applications and is available in 9A, 16A, 25A, and 40A ratings. Additionally, the breaker comes with a 3-year limited warranty.