The ABB S202-K20 (Order Code: 2CDS252001R0487) is a 20A, 2-pole, K-curve Miniature Circuit Breaker (MCB) from the ABB S200 Series (System PRO M). This specialized MCB is designed for industrial and commercial applications where protection of circuits with very high inrush currents, particularly from transformers, solenoid valves, and certain types of lighting (e.g., discharge lamps), is required. The "K" curve features a delayed and higher magnetic trip setting compared to standard curves, providing immunity to short-duration, high-magnitude startup surges while maintaining robust protection against sustained overloads and short circuits.
