3VL4740-1EM46-0AA0 SIEMENS

The 3VL4740-1EM46-0AA0 is a robust 4-pole circuit breaker from Siemens, designed for reliable line protection in industrial and commercial applications. This VL400N series breaker offers a standard breaking capacity of Icu=55kA at 415V AC, ensuring effective protection against overcurrents and short circuits. Equipped with a trip unit (TU), specifically the TM, LI model, it provides adjustable overload protection with a rated current (In) of 400A and an adjustable overload protection range (IR) from 320A to 400A. The short-circuit protection (II) is configurable between 2000A and 4000A, allowing for precise coordination with downstream devices. This model features N-conductor protection (100%), safeguarding against neutral conductor faults. It does not include an auxiliary release, simplifying the design and reducing potential points of failure. Furthermore, it is configured without an auxiliary or alarm switch, focusing on core circuit protection functionality. The absence of these additional features contributes to a more streamlined and cost-effective solution for standard applications. Siemens' commitment to quality ensures that this circuit breaker delivers dependable performance and long-term reliability.