3VL4731-1SH36-0AA0 SIEMENS

The 3VL4731-1SH36-0AA0 is a robust 3-pole circuit breaker from Siemens, designed for reliable line protection in industrial and commercial applications. This VL400N series breaker boasts a standard breaking capacity of Icu=55kA at 415V AC, ensuring effective fault interruption. Equipped with an Electronic Trip Unit ETU22, it offers advanced protection features, including LSIG (Long-Short-Instantaneous-Ground) functionality for comprehensive circuit monitoring. The breaker is suitable for both 3-phase and 4-line systems and comes with a connecting cable for easy installation. Its rated current (In) is 315A, with an adjustable overload protection range (IR) from 128A to 315A, providing flexibility to match specific load requirements. The short-circuit protection (ISD) is adjustable from 1.5 to 10 times the IR setting, while the instantaneous short-circuit protection (II) is fixed at 11 times the IN. This model does not include an auxiliary release or auxiliary/alarm switch, focusing on core circuit protection functions. The ETU22 trip unit enhances the breaker's ability to minimize downtime and protect equipment from damage due to overloads and short circuits. Siemens' 3VL4731-1SH36-0AA0 circuit breaker provides a dependable solution for safeguarding electrical systems.