ABB S203D63 Miniature Circuit Breaker 10kA at 400VAC 3-P 63A 400/415VAC D-Curve

<p>The S200 series Miniature Circuit Breaker (MCB) is a robust and reliable choice for commercial and industrial applications. Designed to handle demanding environments, this MCB offers a rated current of 63 A, making it suitable for various electrical distribution needs.</p><p>With a rated voltage of 400/415 VAC and an impressive breaking capacity of 10 kA at 400 VAC, the S200 ensures dependable circuit protection. The device&amp;#39;s rated insulation voltage stands at 440 V while its impulse withstand voltage reaches up to 4 kV, highlighting its ability to endure transient overvoltages effectively.</p><p>This three-pole MCB features an IP20 degree of protection, safeguarding against solid objects larger than 12 mm. It utilizes screw clamp terminals with a tightening torque of 2.8 N-m, ensuring secure and stable connections. Its compact dimensions—52.5 mm in width, 88 mm in height, and 69 mm in depth—facilitate easy integration into existing systems.</p><p>Engineered for durability, the S200 boasts an electrical lifespan of up to 10,000 cycles. It adheres to rigorous standards including AS/NZS 60898-1, AS/NZS 60947-2, and UL 1077 certifications. Its short circuit capacity is rated at both a standard level of 6 kA and extends up to a remarkable rated short circuit current of 20 kA.</p><p>Designed for versatility across varying temperatures, the MCB operates efficiently within -25&amp;#176;C to +55&amp;#176;C and can be stored safely between -40&amp;#176;C and +70&amp;#176;C. The curve type D characteristic makes it ideal for applications with high inrush currents such as motors or transformers.</p><p>Installation is simplified by its DIN rail mounting capability while accommodating cable cross sections up to 35 sq-mm on both top and bottom terminals. Additionally, it supports bulbar cross sections measuring up to 10 sq-mm on both ends.</p><p>The housing comes in RAL7035 grey color which blends seamlessly into most panel designs while maintaining an aesthetic appeal suited for professional settings.</p><p>For technical professionals seeking reliability combined with compliance across international standards—the S200 series MCB delivers consistent performance backed by proven engineering excellence from start-to-finish without compromise on safety or functionality.</p>