Overcurrent circuit breaker, 3P, B characteristic, 50A, 6kA, AC | S203-B50 2CDS253001R0505

Protection and reliability in your electrical installation

This three-pole overcurrent circuit breaker, with B characteristic and rated current of 50A, is a key element ensuring safety and continuity of operation in electrical installations. Designed to protect against overloads and short circuits, it is perfect for use in residential, commercial and industrial buildings. Its compact size – occupying only 3 modules on a TH rail – makes it easy to install even in crowded distribution boards.

Functionality and technical parameters

The circuit breaker is characterized by a high short-circuit breaking capacity of 6kA at 230V and 10kA at 400V. The B characteristic ensures a quick response to current increase, which is particularly important in circuits with inductive or capacitive loads. This capacity allows for effective disconnection of the circuit in the event of a failure, minimizing the risk of damage to equipment and fire. The circuit breaker is designed to operate at temperatures from -25°C to 55°C, making it a universal solution for various environmental conditions. It is adapted to connect multi-wire conductors with a cross-section from 0.75 mm² to 25 mm² and solid-core conductors from 0.75 mm² to 35 mm², offering flexibility in cable selection.

Installation and application

Installation is carried out on a standard TH35 rail, and screw terminals ensure a secure and durable connection of the conductors. The circuit breaker meets the requirements of IEC/EN 60898-1 and IEC/EN 60947-2 standards, which guarantees its compliance with applicable regulations and high quality of workmanship. The energy limitation class is 3, which means it is intended for installations with medium impact energy. The degree of protection IP20 provides protection against accidental contact, but does not protect against the effects of water or dust – therefore, appropriate protection of the distribution board should be ensured. The possibility of additional equipment allows the circuit breaker to be adapted to the specific needs of the installation.