3VL4740-3EC46-0AA0 SIEMENS

The 3VL4740-3EC46-0AA0 circuit breaker from Siemens is a robust and reliable 4-pole device designed for line protection in electrical systems. It belongs to the VL400L series, known for its very high breaking capacity, specifically an ultimate short-circuit breaking capacity (Icu) of 100kA at 415V AC. This circuit breaker is equipped with a TM trip unit, offering comprehensive protection features. The rated current (In) is 400A, with an adjustable overload protection range (IR) from 320A to 400A, allowing customization based on specific load requirements. For short-circuit protection, the instantaneous tripping current (II) can be set between 2000A and 4000A, ensuring rapid response to fault conditions. Notably, this model provides N (neutral) protection, enhancing safety and preventing damage due to neutral imbalances. It does not include an auxiliary release, auxiliary switch, or alarm switch, making it suitable for applications where these features are not required. The 3VL4740-3EC46-0AA0 is ideal for demanding industrial and commercial applications where high performance and dependable protection are essential. Its adjustable settings and high breaking capacity make it a versatile solution for a variety of electrical protection needs.