The ABB 1SDA051000R1 is a three‑pole molded case circuit breaker (MCCB) from the ABB TMAX T2S 160 series. It is designed for fixed installation with front terminals and features a thermo‑magnetic (TMD) trip unit with adjustable thermal and fixed magnetic settings. This breaker provides reliable overload and short‑circuit protection for low‑voltage electrical distribution systems, making it suitable for industrial, commercial, and panelboard applications where dependable circuit protection is required. The thermomagnetic design allows adjustable current settings from 63 A up to 630 A to match protective coordination needs.