<p>When it comes to ensuring reliable electrical protection and control in industrial and commercial settings, selecting the right automatic air circuit breaker (ACB) is crucial. This particular ACB offers robust performance with a rated current of 4000 A, making it suitable for high-demand applications.</p><p>Designed to withstand challenging environments, this ACB features a rated impulse withstand voltage of 12 kV and an insulation voltage of 1000 V. Its operational capacity extends up to a rated voltage of 690 VAC, ensuring compatibility with various electrical systems. The release type is EL, complemented by the Ekip Dip LSIG trip unit which provides comprehensive protection against overloads, short circuits, ground faults, and other electrical anomalies.</p><p>The breaking capacity stands at an impressive 85 kA. This ensures that the ACB can handle significant fault currents without compromising its integrity or safety standards. With three poles available for connection, it offers flexibility in installation while maintaining optimal performance.</p><p>In terms of design specifications, the product dimensions are compact yet substantial: a width and height both measuring 425 mm and a depth of 383 mm. Despite its robust construction, the unit maintains a manageable weight of 60 kg which facilitates easier handling during installation or maintenance processes.</p><p>Power loss is minimized at just 900 W—an important factor for those concerned about energy efficiency within their systems. Furthermore, its degree of protection is rated at IP30 indicating adequate safeguarding against solid objects larger than 2.5 mm but not providing water resistance; thus suitable precautions should be taken depending on environmental conditions where installed.</p><p>Compliance with IEC 309 standards assures users that this ACB meets international benchmarks for safety and performance—a critical consideration when integrating into existing infrastructures or planning new projects.</p><p>This automatic ACB combines reliability with advanced protective features making it an excellent choice for professionals seeking dependable solutions tailored towards demanding electrical environments without unnecessary complexities or compromises on quality assurance measures typically required by industry regulations today.</p>