3VL5731-3EJ46-0AA0 SIEMENS

The 3VL5731-3EJ46-0AA0 is a robust 4-pole circuit breaker from Siemens, designed for line protection in electrical systems. It is part of the VL630L series, known for its very high breaking capacity, with an Icu of 100kA at 415V AC. This circuit breaker features a TM trip unit, providing reliable overload and short-circuit protection. The In rated current is 315A, with an adjustable overload protection range (IR) from 250A to 315A. The short-circuit protection (II) is set between 1575A and 3150A, ensuring rapid response to fault currents. This model is specifically configured for line protection applications. It does not include N-conductor protection, offering a streamlined design for specific system requirements. Furthermore, it is equipped without an auxiliary release and lacks auxiliary/alarm switches, focusing on core circuit protection functionality. This makes it suitable for applications where advanced monitoring and control features are not required, prioritizing dependable interruption of high fault currents.