5SY4303-8 SIEMENS

The 5SY4303-8 miniature circuit breaker (MCB) from Siemens is a robust and reliable solution for protecting electrical circuits in residential, commercial, and industrial applications. This three-pole MCB is designed for systems with a voltage of 400V and offers a high breaking capacity of 10kA, ensuring effective protection against short circuits and overloads. Featuring a D-curve tripping characteristic, the 5SY4303-8 is particularly suitable for circuits with high inrush currents, such as those found in motor starting or transformer energization. With a rated current of 3A, this MCB provides precise protection for sensitive electronic equipment and lighting circuits. Its compact design, with a depth of 70mm, allows for easy installation in standard distribution boards and consumer units. The 5SY4303-8 complies with relevant IEC standards, guaranteeing safety and performance. It provides reliable protection for cables and conductors against overload and short-circuit, preventing costly downtimes. The breaker is equipped with clear contact position indication, enhancing safety during maintenance and troubleshooting. Siemens' 5SY4303-8 MCB offers a dependable and space-saving solution for circuit protection needs.