<p>For professionals in the electrical engineering and automation sectors, selecting the right Automatic Air Circuit Breaker (ACB) is crucial for ensuring safety and efficiency. This ACB, with a frame size of E4.2, offers robust performance tailored to meet demanding industrial and commercial applications.</p><p>The product boasts an impressive rated current range from 1600 to 4000 A, making it versatile for various load requirements. With a rated voltage of 690 VAC and a rated insulation voltage of 1000 VAC, this circuit breaker is well-suited to handle high-voltage scenarios safely.</p><p>Safety is paramount in any electrical system, and this ACB addresses that concern with its rated impulse withstand voltage of 12 kV. Moreover, it features a rated short time withstand current of 66 kA and an equivalent breaking capacity of 66 kA, ensuring that it can manage fault conditions effectively without compromising system integrity.</p><p>Equipped with the Ekip Touch LSIG trip unit, users benefit from advanced protection features like long-time (L), short-time (S), instantaneous (I), and ground fault (G) protections. This ensures comprehensive safeguarding against various types of faults while maintaining operational reliability.</p><p>Power loss is another critical consideration in circuit breakers used within energy-efficient systems. This model has been designed with a power loss rating of just 900 W—an important factor for minimizing unnecessary energy consumption over prolonged use.</p><p>The design includes three poles with horizontal rear spread terminals which facilitate straightforward installation and integration into existing systems. Compliance with IEC 309 standards further underscores its reliability and adherence to international safety norms.</p><p>In summary, this Automatic ACB delivers on multiple fronts: robust current handling capabilities, advanced protective features through the Ekip Touch LSIG unit, efficient operation with minimal power loss, all encapsulated within a standard-compliant framework suitable for rigorous industrial environments.</p>