<p>When it comes to selecting a reliable and efficient motor-operated air circuit breaker (ACB) for industrial and commercial applications in Australia, understanding the technical specifications is crucial. This particular ACB offers a robust solution with its range of features designed to meet demanding electrical requirements.</p><p>The rated current for this ACB spans from 400 to 1000 Amperes, providing flexibility for various power needs. It operates efficiently within a rated voltage of 690 VAC, making it suitable for numerous medium-voltage applications. The device&#39;s rated insulation voltage stands at 1000 VAC, ensuring safety and reliability under operational conditions.</p><p>One of the key aspects of this ACB is its impressive breaking capacity of 66 kA. This high level of performance ensures that the breaker can safely interrupt fault currents without compromising system integrity. Additionally, it boasts a rated short time withstand current of 50 kA, further highlighting its capability to handle extreme conditions.</p><p>Safety and durability are further enhanced by the device&#39;s rated impulse withstand voltage of 12 kV. This feature protects against transient over-voltages commonly encountered in industrial environments.</p><p>The trip unit incorporated into this model is the Ekip Touch LSIG, known for its advanced protection functions including long-time (L), short-time (S), instantaneous (I), and ground fault protection (G). This comprehensive protection suite ensures that your systems remain secure against various electrical anomalies.</p><p>Designed with practicality in mind, this ACB has four poles and utilizes horizontal rear spread terminals which facilitate straightforward installation in diverse setups. The frame size is specified as E1.2, offering compatibility with existing equipment frameworks while maintaining compactness.</p><p>In terms of energy efficiency, it&#39;s important to note that this ACB has a power loss rating of 156 W under normal operation—an essential consideration when evaluating overall system efficiency and sustainability.</p><p>Compliance with IEC standards is critical in ensuring product quality and safety; thus, this ACB adheres to IEC 309 standards which are recognized globally within the industry for their rigorous testing protocols.</p><p>For professionals seeking an effective balance between performance and reliability in their electrical installations, this motor-operated ACB presents itself as a commendable choice backed by solid engineering principles suited to Australian market demands.</p>