<p>In the realm of industrial and commercial electrical solutions, reliability and performance are paramount. The Automatic Air Circuit Breaker (ACB) with a frame size of E4.2 is designed to meet these exacting standards, catering to professionals who demand efficiency and safety in their operations.</p><p>This ACB operates within a rated current range of 1280-3200 A, making it versatile for various applications where high current management is essential. Its robust design ensures that it can handle substantial loads without compromising on performance or safety.</p><p>A key feature of this breaker is its rated impulse withstand voltage of 12 kV, which provides excellent protection against transient overvoltages typically caused by lightning strikes or switching surges. Additionally, it boasts a rated insulation voltage of 1000 VAC, ensuring reliable operation under normal conditions.</p><p>Safety during fault conditions is assured with the breaker&#39;s rated short-time withstand current and breaking capacity both standing at an impressive 66 kA. This capability allows the breaker to safely interrupt high fault currents, protecting equipment and maintaining system integrity.</p><p>Operating at a rated voltage of 690 VAC further underscores its suitability for heavy-duty applications commonly found in industrial settings. The inclusion of the Ekip Touch LSIG trip unit enhances functionality by providing advanced protection features such as long-time (L), short-time (S), instantaneous (I), and ground fault (G) protections – all crucial for safeguarding electrical systems from overloads and faults.</p><p>Despite its powerful capabilities, this ACB maintains energy efficiency with a power loss rating of just 743 W. This balance between performance and efficiency ensures long-term cost savings on energy consumption while delivering optimal protection.</p><p>The device&#39;s construction includes four poles, offering flexibility in three-phase applications with neutral connectivity options when necessary. Its horizontal rear spread terminal type facilitates straightforward installation into existing setups or new configurations without extensive modifications.</p><p>Compliance with IEC 309 standards ensures adherence to international quality benchmarks, reflecting its reliability and durability in diverse environments worldwide.</p><p>For professionals seeking an effective solution for managing high-power circuits while prioritizing safety and compliance, this Automatic ACB stands out as a dependable choice that meets rigorous demands head-on without compromise.</p>