<p>When it comes to reliable and robust circuit protection, the Non-automatic Air Circuit Breaker (ACB) with a frame size of E4.2 stands out as an effective solution for industrial and commercial applications. Designed to handle demanding electrical environments, this ACB is engineered to meet rigorous standards while providing dependable performance.</p><p>The ACB boasts a substantial rated current of 4000 A, making it suitable for high-power applications where consistent current flow is critical. With a rated voltage of 690 VAC, it effectively manages electrical distribution in various settings. Its standout feature is the impressive breaking capacity of 100 kA, ensuring that even large fault currents are interrupted safely and efficiently.</p><p>Safety and reliability are further enhanced by its rated impulse withstand voltage of 12 kV and a rated insulation voltage of 1000 VAC. These ratings indicate the ACB&#39;s ability to withstand transient overvoltages without compromising operation or safety.</p><p>In terms of durability under stress, this breaker can endure a rated short time withstand current of 85 kA. This specification ensures that the breaker can handle brief surges in current without sustaining damage, which is crucial during fault conditions.</p><p>The product&#39;s power loss is maintained at a manageable level with just 900 W, optimizing energy efficiency while maintaining performance integrity. The horizontal rear spread terminal type facilitates straightforward installation and integration into existing systems.</p><p>Complying with IEC 309 standards guarantees that this ACB meets international benchmarks for safety and quality assurance—a testament to its dependability in diverse application scenarios.</p><p>With three poles included in its design, this non-automatic ACB provides comprehensive protection across multiple phases in complex electrical systems. Whether you&#39;re managing an industrial plant or overseeing commercial infrastructure, this air circuit breaker offers peace of mind through reliable operation under challenging conditions.</p><p>For professionals seeking an efficient yet powerful circuit protection solution that adheres to stringent industry standards without compromising on performance or safety features—this non-automatic ACB presents itself as a fitting choice for your technical requirements.</p>