ABB ST201M-C5NA

ABB ST201M-C5NA is a two‑pole miniature circuit breaker from the ST200M family, designed for DIN‑rail mounting in low‑voltage distribution panels. It uses a C‑curve trip characteristic and is rated for 5 A at 230 V AC (50/60 Hz), with a short‑circuit breaking capacity up to 15 kA (Icu) at 230/400 V and a service short‑circuit current (Inc) of 11.2 kA, while offering a rated insulation voltage Ui of 4 kV. The device features double‑clamped terminals for 25 mm2 flexible or 35 mm2 rigid copper conductors, an IP20 enclosure, and a footprint suitable for DIN rail mounting with overall dimensions of 88 mm high, 35 mm wide and 69 mm deep, designed for operation in ambient temperatures from −25 to 55 °C and compatible with IEC/EN 60947‑2, CSA and UL 1077 general‑purpose low‑voltage protection applications.