ABB SU201M-K2 Circuit Breaker

ABB SU201M-K2 is a single-pole miniature circuit breaker from ABB’s System pro M compact family, designed for DIN-rail mounting in distribution boards and control panels. This K-curve device provides overcurrent protection for a single circuit with a rated current of 2 A and a short‑circuit interrupting capacity of 10 kA (Icu), and is UL489-listed. The SU201M-K2 is part of ABB’s SU200M series of miniature circuit breakers, engineered for modular, DIN-rail installation and easy expansion in compact panel boards, and it is documented in ABB’s catalog as a 1P device in the SU201M line with the SKU 2CDS271337R0277. Suitable for protecting individual branch circuits in DIN-rail mounted panel boards, it uses the K-characteristic to balance protection speed with selectivity for higher fault currents. The unit is designed for straightforward commissioning within ABB’s System pro M compact lineup, enabling seamless integration with other SU200M breakers.