The ABB 1SDA050955R1 is a three‑pole molded case circuit breaker (MCCB) from the ABB Tmax T2N family designed for low‑voltage power distribution protection. It incorporates a thermo‑magnetic (TMD) trip unit with adjustable overload settings and fixed short‑circuit protection. This circuit breaker is suitable for protecting three‑phase circuits up to 50 A, providing reliable overload and short‑circuit interruption in industrial and commercial electrical systems. Its robust design, front connections, and high interrupting capacity make it ideal for feeder, branch, and general circuit protection applications
