ABB S200 2CDS251103R0065 — 6 A B-Curve MCB for Panel Protection
The Icn rating of 6 kA is the service breaking capacity per IEC 60898 — the level the breaker can safely interrupt repeatedly. The Icu rating of 20 kA is the ultimate breaking capacity per IEC 60947-2, a one-shot fault clearance figure that gives headroom for high-fault locations near transformers. For a 6 A B-curve MCB, the 20 kA Icu means it can be applied downstream of a larger upstream device without cascading failure, provided the prospective short-circuit current at its installation point does not exceed that value.
Panel Integration and Enclosure Fit
The 2-pole width is 35 mm (one module per pole), height 88 mm, depth 69 mm. The IP20 enclosure rating means finger-safe terminals when installed in a panel; IP40 applies to the front face, protecting against tools and small wires entering the actuator slot. The bi-directional cylinder-lift terminal accepts up to 2.8 Nm tightening torque, compatible with standard screwdrivers and ferruled conductors.