ABB 2CDS 253 001 R0607 Miniature Circuit Breaker

ABB S203‑K63 Miniature Circuit Breaker, 2CDS 253 001 R0607, is a three‑pole (3P) protective device rated for 63 A in ABB’s System Pro M Compact S200 family. It is designed for 400 V AC circuits (Ui 440 V) with a 4 kV impulse withstand and a 50/60 Hz operating range, featuring a Type K trip characteristic for moderate inrush and short‑circuit protection. The unit occupies three width modules (3P) and has a depth of about 69 mm, with an IP20 enclosure suitable for indoor distribution panels. Key electrical ratings include a short‑circuit current rating (Icn) of 6 kA and an ultimate short‑circuit current (Icu) up to 10 kA at 400 V, with higher Icu values referenced for lower voltages in some data sets, reflecting its overall protection capability within DIN rail installations. This 63 A, 3P S203‑K63 part is commonly used to guard three‑phase feeders in distribution boards, control cabinets, and motor circuits where compact, reliable overcurrent protection is required. The device’s screwless or clamp terminals and DIN rail mounting support streamlined panel wiring, making it a compatible choice alongside other S200P/System Pro M components in standard industrial electrical assemblies.