<p>For those in the industrial and commercial sectors, selecting the right circuit breaker is crucial for ensuring safety and efficiency. The Non-automatic Air Circuit Breaker (ACB) you&#39;re considering is a robust solution designed to meet high-performance standards.</p><p>Starting with its electrical specifications, this ACB can handle a rated current of 4000 A. It’s engineered to withstand a rated impulse voltage of up to 12 kV and has a rated insulation voltage of 1000 V, making it suitable for demanding environments where reliability is key. Operating at a rated voltage of 690 VAC, this breaker provides broad compatibility with various systems.</p><p>The power loss associated with this device is measured at 465 W, indicating efficient energy management within your setup. With four poles, it ensures comprehensive protection across all phases in your electrical system.</p><p>In terms of physical dimensions and installation specifics, the breaker boasts a width of 510 mm, height of 371 mm, and depth of 270 mm. These dimensions are critical for fitting into existing panels or enclosures without hassle. Weighing in at 70 kg, it&#39;s substantial enough to provide stability yet manageable during installation.</p><p>Protection from external elements is assured with an IP30 rating. This degree of protection indicates that while it&#39;s shielded against solid objects over 2.5 mm in size (like tools or thick wires), it should be installed indoors or within additional protective housing if exposure to moisture or dust is expected.</p><p>The bolt-type terminal configuration allows for secure connections under heavy load conditions. When installing or maintaining this ACB, apply a tightening torque of 70 N-m to ensure optimal contact integrity and performance longevity.</p><p>As per compliance requirements, this product adheres to IEC 309 standards—an assurance that it meets international benchmarks for safety and performance in electrical installations.</p><p>This Non-automatic ACB represents an ideal choice for professionals seeking reliable circuit protection without unnecessary complexity or automation features that might not be needed in all applications. Its straightforward design combined with rigorous engineering makes it well-suited for diverse industrial applications where durability and dependability are paramount.</p>