The ABB 1SDA058151R1 is a fixed three-pole moulded case circuit breaker (MCCB) from the ABB Tmax T5N series, designed for industrial and commercial electrical protection. It features an electronic solid-state trip unit (PR221DS-LS/I) that provides reliable current protection for AC circuits. The breaker has front-mounted terminals for easy installation and is suitable for use in power distribution systems where UL and CSA certification is required.