<p>When selecting an Automatic Air Circuit Breaker (ACB) for industrial or commercial applications, it&#39;s crucial to focus on the technical specifications that ensure compatibility and reliability within your electrical systems. This particular ACB offers a robust solution with its comprehensive feature set tailored for demanding environments.</p><p>Designed to handle substantial electrical loads, this ACB accommodates a rated current range of 1280-3200 A, making it suitable for large-scale operations. The rated voltage stands at 690 VAC, which aligns well with many industrial power systems. Additionally, the breaker boasts a high breaking capacity of 100 kA, ensuring it can safely interrupt fault currents without compromising system integrity.</p><p>Safety is further enhanced by its rated impulse withstand voltage of 12 kV and a rated insulation voltage of 1000 VAC. These features provide reliable protection against overvoltages and insulation failures, safeguarding both equipment and personnel.</p><p>The trip unit integrated into this ACB is the Ekip Touch LSIG model. Known for its precision and adaptability, the Ekip Touch LSIG ensures accurate detection and interruption of faults through long-time (L), short-time (S), instantaneous (I), and ground fault (G) protection functions. This versatility allows for fine-tuning to meet specific operational needs.</p><p>From an endurance perspective, the device&#39;s rated short time withstand current is an impressive 85 kA. This capability means it can sustain significant fault currents over brief periods without damage—an essential characteristic in maintaining continuity during transient conditions.</p><p>Considering energy efficiency is also important in today&#39;s environmentally conscious marketplace. With a power loss rating of 743 W, this ACB strikes a balance between performance demands and energy consumption—a noteworthy factor when evaluating total cost of ownership over time.</p><p>The frame size E4.2 indicates its physical dimensions are optimized for space-conscious installations while maintaining structural integrity under high stress conditions. It features a horizontal rear spread terminal type which facilitates straightforward connections in various configurations—ideal for retrofitting or new setups where ease of installation matters.</p><p>Compliance with IEC 309 standards underscores this product&#39;s adherence to international safety and performance benchmarks—a critical consideration when aligning with regulatory requirements or project specifications globally.</p><p>In summary, this automatic ACB combines durability with advanced protection capabilities suitable for diverse industrial applications requiring high reliability under challenging conditions.</p>