<p>When it comes to selecting a reliable Automatic Air Circuit Breaker (ACB) for industrial and commercial applications, understanding the technical specifications is crucial. This ACB model offers a robust solution tailored to meet demanding electrical requirements.</p><p>With a rated current ranging from 400 to 1000 Amperes, this ACB is versatile enough to handle various load conditions effectively. It operates at a rated voltage of 690 VAC, making it suitable for high-voltage applications. The breaker also features an impressive breaking capacity of 66 kA, ensuring safety and reliability during fault conditions by efficiently interrupting excessive current flow.</p><p>Designed with durability in mind, the ACB has a rated short time withstand current of 50 kA. This specification highlights its ability to endure short-circuit conditions without compromising performance. The frame size E1.2 allows for compact installation while maintaining structural integrity.</p><p>The unit&#39;s trip mechanism is controlled by the advanced Ekip Touch LSIG trip unit. This feature provides precise protection settings and intuitive touch controls for easy operation and monitoring. Additionally, the product adheres strictly to IEC 309 standards and approvals, ensuring compliance with international safety norms.</p><p>From an insulation perspective, this ACB boasts a rated impulse withstand voltage of 12 kV and an insulation voltage rating of 1000 VAC. These ratings are indicative of its capability to resist transient over-voltages effectively.</p><p>Power efficiency is another notable aspect; with power loss limited to just 156 W, it minimizes energy wastage while operating optimally under full load conditions. Its design includes four poles which enhance phase separation, contributing further to operational safety.</p><p>The terminal type employed here is horizontal rear spread terminals which facilitate straightforward installation and maintenance access in complex setups or congested panels—a critical consideration for professionals looking to streamline their workflow without sacrificing accessibility or functionality.</p><p>In summary, this Automatic ACB combines significant electrical endurance with intelligent design elements suited for modern electrical installations across diverse sectors—ensuring both protection and operational efficiency are prioritized in your projects.</p>