ABB 1SDA053893R1 Molded Case Circuit Breaker

ABB 1SDA053893R1 is a SACE Tmax T2 molded‑case circuit breaker in the T2S020TW configuration, a three‑pole unit rated for 20 A. This UL 489 listed device is designed for three‑phase distribution circuits up to 480 V AC, providing overcurrent protection for feeders, panelboards, motor circuits, and MCCs. It belongs to the Tmax T2 family, which emphasizes a compact form factor suitable for installation in commercial and light‑industrial panels. With three active poles, it interrupts all phases simultaneously to maintain balanced protection against short circuits and overloads. The 1SDA053893R1 part number specifically identifies the 3‑pole, 20 A variant within the Tmax T2 lineup, making it a suitable choice for protecting three‑phase loads such as motors and conveyors in switchgear and control panels where a 20 A rating and 480 V max are required.