3VL4731-1NB46-0AA0 SIEMENS

The 3VL4731-1NB46-0AA0 is a robust 4-pole circuit breaker from Siemens, designed for reliable line protection in electrical systems. It features a standard breaking capacity (Icu) of 55kA at 415V AC, ensuring effective interruption of fault currents. Equipped with an Electronic Trip Unit (ETU10), this circuit breaker offers precise and adjustable protection characteristics. The rated current (In) is 315A, with an adjustable overload protection range (Ir) from 128A to 315A, allowing customization to specific load requirements. The short-circuit protection (Ii) is configurable from 1.25 to 11 times the rated current, providing fast response to short-circuit events. This model does not include an auxiliary release but is communication-capable via ETU, enabling remote monitoring and control. This communication capability allows for seamless integration into modern, digitally managed power distribution systems. The 3VL4731-1NB46-0AA0 is suitable for a wide range of industrial and commercial applications where reliable and adaptable circuit protection is essential. Its advanced features and robust construction ensure long-term performance and safety.