<p>For professionals in the electrical engineering and automation sectors, selecting the right components is crucial for ensuring operational efficiency and safety. The non-automatic Air Circuit Breaker (ACB) detailed here offers a robust solution tailored to industrial and commercial applications, providing reliable performance under demanding conditions.</p><p>This ACB is designed to handle a substantial rated current of 4000 A, making it suitable for high-capacity installations. Its ability to withstand a rated impulse voltage of 12 kV ensures resilience against transient overvoltages, which can be critical in maintaining system integrity. Additionally, with a rated insulation voltage of 1000 V and an operational rated voltage of up to 690 VAC, this circuit breaker provides flexibility across various application scenarios.</p><p>In terms of power efficiency, the unit exhibits a power loss of 309 W. This characteristic should be considered during system design to ensure thermal management strategies are effectively implemented. The breaker’s three-pole configuration makes it adaptable for three-phase systems commonly found in industrial environments.</p><p>Protection standards are met with an IP30 degree rating, offering protection against solid objects larger than 2.5 mm while ensuring safe operation in controlled indoor environments. Installation is straightforward thanks to its bolt-type terminals that require a tightening torque of 70 N-m, facilitating secure connections essential for maintaining long-term reliability.</p><p>The physical dimensions—762 mm width, 371 mm height, and 270 mm depth—alongside its weight of 109 kg should be factored into planning for installation space requirements and handling logistics during setup or maintenance operations.</p><p>Compliant with IEC 309 standards and approvals, this ACB meets international benchmarks for safety and performance—a testament to its quality assurance processes.</p><p>Overall, this non-automatic ACB presents itself as a dependable choice for those seeking durability combined with efficient electrical management capabilities within their infrastructure projects.</p>