ABB S203MT-D20 Miniature Circuit Breaker 10 kA 3-P 20A 400V D-Curve

<p>This robust circuit breaker is designed for industrial and commercial applications, offering a reliable solution for electrical protection. With a rated current of 20 A, it efficiently manages electrical flow while maintaining safety standards. The unit&amp;#39;s rated impulse withstand voltage stands at 4 kV, ensuring resilience against transient overvoltages.</p><p>Engineered with a rated insulation voltage of 440 V and a rated voltage of 400 V, this circuit breaker provides dependable performance in demanding environments. Its power loss is minimized to just 7.5 W, enhancing energy efficiency without compromising on functionality.</p><p>The device features three poles and boasts an impressive breaking capacity of 11.3 kA, making it suitable for handling significant fault currents. Its IP20 degree of protection safeguards against solid object intrusion, ensuring durability in various settings.</p><p>Installation is straightforward thanks to the screw clamp terminal type which supports secure connections with a tightening torque specification of 2.8 N-m. Measuring at 52.5 mm in width, 88 mm in height, and 69 mm in depth, this compact design allows for easy integration into existing systems.</p><p>Complying with IEC/EN 60898-1 and IEC/EN 60947-2 standards ensures that this product meets international safety requirements and performance benchmarks. It operates effectively within a frequency range of 50/60 Hz.</p><p>The device promises long-lasting reliability with an electrical durability rating of up to 20,000 cycles under normal conditions. Rated as IP3 for pollution degree makes it suitable for environments where dust or other pollutants are present but not excessive.</p><p>Designed with a D curve type characteristic allows it to handle high inrush currents typically found in motor start-ups or similar applications without nuisance tripping. It performs optimally across an ambient temperature range from -25&amp;#176;C to +55&amp;#176;C during operation and can be stored safely between -40&amp;#176;C and +70&amp;#176;C.</p><p>Housed in RAL 7035 grey casing offers both aesthetic appeal and functional resilience suitable for diverse installation sites.</p>