<p>In the realm of industrial and commercial electrical systems, selecting the right Automatic Air Circuit Breaker (ACB) is crucial for ensuring operational safety and efficiency. The ACB with a frame size of E4.2 stands as a robust solution tailored to meet demanding requirements.</p><p>This ACB supports a rated current range from 1600 to 4000 Amperes, making it suitable for heavy-duty applications where high current flow is standard. Its breaking capacity of 100 kA ensures that it can handle significant fault currents without compromising system integrity, which is essential in preventing equipment damage and maintaining uninterrupted power supply.</p><p>Engineered for resilience, this ACB features a rated impulse withstand voltage of 12 kV and a rated insulation voltage of 1000 VAC. These specifications highlight its ability to endure high transient voltages, safeguarding against potential surges and spikes that are common in industrial environments.</p><p>The device operates efficiently at a rated voltage of 690 VAC. It incorporates the Ekip Touch LSIG trip unit, known for its precision in monitoring and protection functions such as long-time, short-time, instantaneous overcurrent protection, and ground fault protection. This advanced trip unit enhances reliability by offering customizable settings tailored to specific application needs.</p><p>With regard to durability under stress conditions, this ACB exhibits an impressive rated short-time withstand current capability of 85 kA. This feature ensures it remains operational even during severe fault conditions momentarily before tripping occurs.</p><p>Its design includes three poles with horizontal rear spread terminals facilitating straightforward integration into existing setups while minimizing installation time and complexity. Such design considerations are vital in large-scale operations where downtime equates to lost productivity.</p><p>The power loss factor stands at 900 W—a metric crucial for energy efficiency evaluations—ensuring that while providing robust protective measures, energy consumption remains within acceptable limits.</p><p>Conforming to IEC 309 standards guarantees that this product meets international benchmarks for safety and performance—an assurance vital for compliance officers and engineers alike who prioritize adherence to global norms.</p><p>Overall, this Automatic ACB offers comprehensive features designed for reliability in harsh conditions typical of industrial settings. It combines cutting-edge technology with practical engineering solutions aimed at delivering consistent performance over its lifecycle without unnecessary complications or maintenance demands.</p>