ABB 1SDA053954R1 is a three-pole SACE Tmax T2S molded‑case circuit breaker (MCCB) rated 50 A at 480 V, providing reliable overcurrent protection for three‑phase distribution circuits in industrial and commercial panels. The unit features bolt‑on line‑side connections with load‑side lugs, and mounting bolts are included in the package. As part of the Tmax T2S family, this variant is commonly used to protect feeders and motor circuits in standard 3‑phase networks up to 480 V, making it suitable for panelboards and control cabinets in industrial facilities.
