3VL6780-1NF46-0AA0 SIEMENS

The 3VL6780-1NF46-0AA0 is a robust 4-pole circuit breaker from Siemens, designed for reliable line protection in electrical systems. It is part of the VL series, known for its standard breaking capacity. This model boasts an Icu of 55kA at 415V AC, ensuring effective protection against short circuits and overloads. The trip unit is an ETU20, providing LSI (Long-Short-Instantaneous) protection functions. The circuit breaker has a rated current (In) of 800A, with an adjustable overload protection range (IR) from 320A to 800A. The short-circuit protection (ISD) is adjustable from 1.5 to 7 times the IR setting, and the instantaneous short-circuit protection (II) is fixed at 8 times the IN. This model includes N-pole protection, enhancing safety and preventing neutral imbalances. Communication capabilities are integrated into the ETU, allowing for remote monitoring and control. Note that this particular model does not include an auxiliary release or alarm switch.