<p>When evaluating a motor-operated air circuit breaker (ACB) for industrial or commercial applications, understanding its specifications is crucial. This particular ACB offers robust performance and reliability, making it an ideal choice for various electrical systems.</p><p>The ACB is designed to handle a rated current range of 640-1600 A, providing flexibility to suit different load requirements. It operates efficiently within a rated voltage of 690 VAC and boasts a high-rated insulation voltage of 1000 VAC, ensuring safety and durability in demanding environments.</p><p>In terms of resilience against transient overvoltages, this unit features a rated impulse withstand voltage of 12 kV. This capability enhances the protection against lightning strikes and switching surges, critical for maintaining system integrity.</p><p>Safety during short circuits is assured with its impressive breaking capacity of 66 kA and a rated short-time withstand current of 50 kA. These ratings ensure that the breaker can handle severe fault conditions without compromising on performance or safety.</p><p>The trip unit integrated into this ACB is the Ekip Touch LSIG model. Known for its precision and advanced functionality, this trip unit provides comprehensive protection through long time (L), short time (S), instantaneous (I), and ground fault (G) settings. This ensures optimal operational safety while minimizing unnecessary downtime due to false trips.</p><p>With a power loss rating at 400 W, efficiency remains high without excessive energy waste—a factor that&#39;s increasingly important in today&#39;s energy-conscious market. The horizontal rear spread terminal type facilitates easy installation and integration into existing systems while maintaining secure connections.</p><p>This circuit breaker adheres to IEC 309 standards, underscoring its compliance with international safety regulations. With three poles available in frame size E1.2, it&#39;s well-suited for diverse applications requiring reliable power distribution solutions.</p><p>Overall, this motor-operated ACB combines versatility with high-performance metrics suitable for complex electrical networks in both industrial and commercial settings—an asset to any facility manager or engineer focused on efficiency and reliability in their electrical infrastructure management tasks.</p>