3VL4740-1TE46-0AA0 SIEMENS

The 3VL4740-1TE46-0AA0 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 fault interruption. Equipped with an ETU20 trip unit, this breaker offers comprehensive protection settings. The rated current (In) is 400A, with an adjustable overload protection range (IR) from 160A to 400A. Short-circuit protection (ISD) can be configured from 1.5 to 10 times the IR value, providing flexibility in adapting to specific load requirements. Instantaneous short-circuit protection (II) is set at 11 times the rated current (IN) for rapid response to high-level faults. This model does not include N-conductor protection, auxiliary release, or auxiliary/alarm switches, focusing on core protection functionalities. Its robust design and adjustable settings make it suitable for diverse industrial and commercial applications. Siemens' commitment to quality ensures long-term performance and reliability.