ABB S202M-B6 2-Pole MCB, 6A B-Curve

The S202M-B6: The 6 A rating at the B-curve means this breaker will hold steady at continuous loads up to 6 A and trip instantaneously between roughly 18 A and 30 A. That window catches a short-circuit fast but lets a small transformer inrush or motor starting surge pass — a common spec for control-circuit protection in panels where you don't want nuisance tripping on energization. The 2-pole configuration (switching both line and neutral on a single-phase circuit, or two phases on a three-phase system) is standard for 240 V split-phase or 400 V line-to-line loads.