<p>When it comes to selecting an Automatic Air Circuit Breaker (ACB) for industrial or commercial applications, understanding the technical specifications is crucial. This ACB is designed to handle demanding electrical environments with its robust and reliable features.</p><p>Firstly, the rated current range of 640-1600 A ensures that this ACB can accommodate a variety of load requirements, making it versatile for different installations. Its rated impulse withstand voltage stands at 12 kV, providing excellent protection against transient overvoltages often caused by lightning strikes or switching operations.</p><p>The device boasts a rated insulation voltage of 1000 VAC and a rated operational voltage of 690 VAC, aligning well with common industrial power systems. With a rated short-time withstand current of 50 kA and a breaking capacity of 66 kA, this ACB is engineered to manage high fault currents effectively while ensuring system safety and reliability.</p><p>Equipped with the Ekip Touch LSIG trip unit, this breaker offers advanced protection features including long-time (L), short-time (S), instantaneous (I), and ground fault (G) protections. This comprehensive protection suite enhances operational safety by quickly responding to various fault conditions.</p><p>The frame size E1.2 signifies its compact design without compromising performance. The horizontal rear spread terminal type facilitates straightforward integration into existing panel setups or new installations, ensuring ease of connectivity and maintenance.</p><p>In terms of energy efficiency, the power loss is maintained at 400 W which reflects its optimized design for reduced energy wastage during operation. Complying with IEC 309 standards ensures that this ACB meets international quality benchmarks for safety and performance.</p><p>Overall, this automatic circuit breaker offers a balanced combination of functionality and compliance suitable for Australia&#39;s rigorous industrial demands. It provides peace of mind through dependable performance in protecting electrical circuits from damage due to overloads or faults while maintaining system integrity efficiently within specified limits.</p>