The ABB SU202M-Z40 is a two‑pole miniature circuit breaker (UL489) from ABB’s SU 200 M protection family, rated 40 A with a 10 kA short‑circuit breaking capacity and a Z‑characteristic (curve Z) for overcurrent protection. It provides branch‑circuit protection in AC systems up to 480Y/277V and DC systems up to 96V, in compliance with UL489, and is suitable for installation in distribution panels, motor‑control centers, and other enclosures where reliable isolation and coordinated tripping are required. Each unit weighs about 0.25 kg and is designed for standard 2‑pole mounting in compatible enclosures.
