3VL4731-1EM46-0AA0 SIEMENS

The 3VL4731-1EM46-0AA0 is a four-pole circuit breaker from Siemens, designed for line protection in electrical systems. It is part of the VL400N series, known for its standard breaking capacity. This circuit breaker offers a rated current of 315A, with an adjustable overload protection range (IR) from 250A to 315A. The instantaneous short-circuit protection (II) is also adjustable, ranging from 1575A to 3150A. It provides a breaking capacity (Icu) of 55kA at 415V AC, ensuring reliable performance under fault conditions. The trip unit is a TM type, featuring both LI functions for overload and instantaneous short-circuit protection. Notably, this model includes N (neutral) protection set at 100%. It does not include an auxiliary release or auxiliary/alarm switch, focusing on core circuit protection functionality. This circuit breaker is suitable for applications requiring robust and adjustable protection against overloads and short circuits.