<p>The Automatic Air Circuit Breaker (ACB) is a robust solution tailored for industrial and commercial applications, offering reliable protection and operational efficiency. Designed to handle demanding environments, this ACB supports a rated current range from 640 A to 1600 A, making it versatile for various electrical systems.</p><p>One of the standout features of this ACB is its high-rated impulse withstand voltage of 12 kV. This capability ensures that the circuit breaker can endure transient overvoltages typically encountered in industrial settings, providing an extra layer of safety and reliability. Coupled with a rated insulation voltage of 1000 VAC, it guarantees secure operations under normal conditions.</p><p>The breaker is engineered with a rated short-time withstand current capacity of 50 kA. This specification indicates its ability to sustain high fault currents for defined periods without compromising performance or safety—a crucial factor in maintaining system integrity during fault conditions.</p><p>Operating at a rated voltage of up to 690 VAC, this ACB integrates seamlessly into standard power distribution networks. Its breaking capacity stands at an impressive 66 kA, ensuring efficient interruption of fault currents and minimizing potential damage to connected equipment.</p><p>At the heart of this device lies the Ekip Touch LSIG trip unit. This advanced trip unit provides comprehensive protection by covering long-time (L), short-time (S), instantaneous (I), and ground fault (G) protections. The user-friendly interface allows for easy configuration and monitoring, enhancing operational control and flexibility.</p><p>Designed with four poles, the breaker offers balanced protection across phases—essential for three-phase systems commonly used in industrial applications. Additionally, its frame size E1.2 contributes to compact yet powerful performance suitable for space-constrained installations.</p><p>The horizontal rear spread terminal type facilitates straightforward installation while ensuring secure connections within switchgear assemblies or panels. Such design considerations are pivotal in reducing installation time and enhancing overall system reliability.</p><p>Meeting IEC 309 standards underscores the breaker&#39;s compliance with international quality benchmarks—providing assurance regarding its durability and performance consistency across diverse environments.</p><p>With a power loss rating at just 400 W, this ACB maintains energy efficiency even under full load conditions—a significant advantage when considering long-term operational costs associated with large-scale electrical installations.</p><p>In summary, this Automatic Air Circuit Breaker combines advanced protective features with practical design elements suited for modern electrical infrastructures demanding resilience against faults while optimizing energy consumption efficiently.</p>