S202MUC-K20 — 20 A, Trip Curve K, 2-Pole MCB
The ABB S202MUC-K20 is a 2-pole miniature circuit breaker from the S200MUC series, rated for 20 A continuous with a Trip Curve K characteristic. Trip Curve K means the magnetic trip operates at 8 to 12 times the rated current (160–240 A instantaneous), making it suited for loads with moderate inrush — motor circuits, transformers, or lighting banks where a standard Curve C might nuisance-trip on startup. The interrupting rating is 6 kA at 277 V AC and 10 kA at 500 V DC, which covers most commercial and light industrial panelboard fault levels within those voltage limits.
Panel Integration
The 2-pole footprint occupies two modular units (36 mm width). Wire terminals accept copper conductors up to 25 mm², with a combined neutral/phase busbar slot for downstream distribution.