<p>When selecting an MCB (Miniature Circuit Breaker) for your commercial or industrial application, it&#39;s crucial to consider the technical specifications that ensure reliability and safety. The S800S series MCB is designed with these priorities in mind, offering robust performance and compliance with international standards.</p><p>This MCB features a rated current of 63 A, making it suitable for a variety of applications where moderate electrical loads are expected. Its rated voltage spans from 400 to 690 VAC, providing flexibility across different power systems. With a breaking capacity of 50 kA at 400 VAC, this device can handle significant fault currents without compromising safety.</p><p>The S800S series adheres to rigorous standards including IEC/EN 60947-2, IEC/EN 60898-1, and UL 1077, ensuring its reliability in diverse environments. It also boasts an impressive rated impulse withstand voltage of 8 kV and an insulation voltage of up to 690 V. This makes it particularly resilient against transient overvoltages which are common in industrial settings.</p><p>Designed with practicality in mind, the unit has four poles and fits neatly onto DIN rails for easy installation. The tightening torque is specified at 3.5 N-m which ensures secure connections without excessive force. Additionally, its compact dimensions—106 mm width by 95 mm height by 82.5 mm depth—allow it to fit into standard enclosures without hassle.</p><p>One notable feature is its degree of protection: IP20 rating indicates that it provides basic protection against solid objects larger than 12mm but should be installed within a protective enclosure due to lack of water resistance. For pollution levels typically found in industrial environments, it meets the requirements set by IP3 classification.</p><p>Operational efficiency is further highlighted by its low power loss of just 25.6 W and an electrical durability rating capable of enduring up to 6000 cycles under normal operating conditions. The curve type C release ensures effective tripping characteristics suitable for general-purpose applications where moderate inrush currents occur.</p><p>The breaker supports cable cross sections up to 50 sq-mm both on top and bottom terminals which accommodates various wiring needs while maintaining system integrity through consistent connectivity.</p><p>For those concerned about thermal performance or environmental exposure limits—the operational temperature range extends from -25&#176;C upwards—providing reliable operation even under extreme conditions commonly encountered in Australian climates.</p><p>Overall—with its RAL7035 grey housing enhancing visual integration into existing setups—the S800S series MCB stands out as a dependable choice balancing safety standards with functional versatility tailored specifically towards commercial-industrial use cases demanding high endurance levels combined with straightforward installation processes.</p>