<p>When it comes to ensuring robust electrical distribution in industrial and commercial settings, selecting the right Automatic Air Circuit Breaker (ACB) is crucial. This particular ACB, with its impressive specifications, stands out as a reliable choice for professionals seeking performance and safety.</p><p>This ACB offers a rated current range of 1600-4000 A, making it suitable for a variety of applications where high demand is expected. Its rated impulse withstand voltage of 12 kV ensures resilience against transient overvoltages, safeguarding your systems from unexpected surges. The breaker also boasts a rated insulation voltage of 1000 VAC and operates efficiently at a rated voltage of 690 VAC.</p><p>One of the standout features is its trip unit: the Ekip Touch LSIG. This advanced trip unit provides comprehensive protection by monitoring overloads (L), short circuits (S), instantaneous faults (I), and ground faults (G). Such versatility ensures that your system remains protected under various fault conditions.</p><p>The power loss associated with this ACB is maintained at 900 W, which reflects its efficiency in energy management while minimizing operational costs over time. With four poles available, this breaker can handle complex electrical systems requiring multi-phase protection.</p><p>In terms of durability and safety during fault conditions, this ACB has both a breaking capacity and a rated short-time withstand current set at an impressive 66 kA. This capability guarantees that the breaker can effectively interrupt high fault currents without compromising on safety or reliability.</p><p>Designed with practicality in mind, the frame size E4.2 allows for integration into existing infrastructures without significant modifications. Additionally, the horizontal rear spread terminal type facilitates straightforward connections during installation or maintenance tasks.</p><p>Compliant with IEC 309 standards and approvals, this ACB aligns with international benchmarks for quality and performance assurance—an essential consideration when operating within regulated environments or industries demanding stringent adherence to global standards.</p><p>For professionals evaluating their options based on factual data rather than emotional appeal, these specifications deliver clarity on what to expect from this automatic circuit breaker—reliability under load variations coupled with advanced protective features make it an asset for any sophisticated electrical setup aiming for longevity and minimal downtime.</p>