ABB S3D250TW U is a 250 A, 600 V, 3‑pole molded case circuit breaker (MCCB) with a non‑auto trip mechanism from ABB. The model designation S3D250TW U identifies a three‑phase MCCB in the S3D family designed for panel distribution, rated for up to 600 V and capable of interrupting fault currents up to 100 kA. This device provides manual trip operation for overload and short‑circuit protection in three‑phase electrical installations.
