ABB 2CDS283001R0504

The S203P-C50 Miniature Circuit Breaker is designed for current limiting applications in residential, commercial, and industrial environments. This device features a tripping characteristic of C and operates at a rated current of 50 A. It incorporates delayed thermal tripping for overload protection and electromechanical tripping for short circuit protection.

Compliance with standards such as IEC/EN 60898-1, IEC/EN 60947-2, UL 1077, and CSA 22.2 No. 235 ensures reliability across various applications. The circuit breaker supports rated operational voltages up to 400 V AC and exhibits a rated impulse withstand voltage of 4 kV at 2000 m and 5 kV at sea level, providing robust electrical performance.

With a compact design measuring 52.5 mm in width and 69 mm in depth, the S203P-C50 can be easily mounted on standard DIN rails (TH35-15 or TH35-7.5), making it versatile for different installation scenarios. The device also features a power loss of 9 W, with a rated service short-circuit breaking capacity of 7.5 kA at 400 V AC.

Environmental resilience is built into the design, with an operational temperature range of -25 °C to +55 °C and a storage temperature range of -40 °C to +70 °C. The device is rated IP20 for protection against solid objects and can be equipped with bottom-fitting auxiliary contacts to optimize space usage.