Overcurrent circuit breaker, 3P, B characteristic, 50A, 10kA, AC | S203M-B50 2CDS273001R0505

Reliable protection of electrical installations – 3P, 50A circuit breaker

This three-pole circuit breaker with B characteristic is a key element of every safe and reliable electrical installation. It provides effective protection against overloads and short circuits, minimizing the risk of damage and fires. Its compact size – only 3 modules wide – makes it easy to install even in crowded distribution boards.

Solid construction and high breaking capacity

The circuit breaker is characterized by high quality and durability. The rated short-circuit breaking capacity reaches 10kA at 400V and 230V, as well as 15kA (Icu) at 400V and 25kA (Icu) at 230V, which guarantees a quick and safe response in the event of a failure. Energy limitation class 3 and surge category III confirm its resistance to interference and ability to operate in difficult conditions. Made of high-quality materials, it ensures long-lasting and trouble-free operation.

• Wide range of applications: ideal for protecting circuits with a rated current of up to 50A in residential, commercial and industrial buildings.
• B characteristic: provides a quick response to short circuits, protecting sensitive electronic devices, but also allows for short-term overloads, e.g. when starting motors.
• DIN rail mounting: standard mounting simplifies installation and replacement in existing distribution boards.
• Wire cross-sections: accepts both solid (up to 35 mm²) and stranded (up to 25 mm²) wires, providing flexibility when selecting power cables.
• 3 module width: saves space in the distribution board.
• Operating temperature: operates reliably in a wide temperature range from -25°C to +55°C.

This circuit breaker complies with EN 60898 and IEC 60947-2 standards, which confirms its safety and reliability. Protection class IP20 provides protection against accidental contact and the ingress of solid objects larger than 12.5 mm. Power losses are only 9.75W, which translates to energy efficiency of the installation.