The Siemens 5SY4104-8 miniature circuit breaker is a robust and reliable solution designed to protect electrical circuits from overloads and short circuits, ensuring operational safety and efficiency. This single-pole breaker is rated for 230/400V and can handle a 10kA breaking capacity, making it suitable for a wide range of industrial and commercial applications. With a D tripping characteristic, it is particularly adept at managing high inrush currents typical of motors and transformers without nuisance tripping.
Crafted for quick assembly, the 5SY4104-8 features a compact design with a width of just 18mm, allowing for efficient use of space within distribution boards. The device's operational temperature range from -25°C to +55°C, with storage temperatures ranging from -40°C to +75°C, ensures reliability across various environments. The circuit breaker also boasts touch protection and a sealable feature, enhancing safety during maintenance and preventing unauthorised adjustments.
The 5SY4104-8 is engineered for convenience, with a combined terminal at both the top and bottom for flexible installation options. It supports a wide range of conductor cross-sections, from 0.75 mm² to 35 mm² solid and stranded, and up to 25 mm² for finely stranded conductors with wire end processing. The tightening torque specifications ensure a secure and reliable connection for sustained performance.
This Siemens miniature circuit breaker is a testament to quality and durability, meeting the rigorous standards of IEC / EN 60898-1 and IEC / EN 60947-2, as well as UL1077 for international compliance. Its halogen-free construction and the option to install supplementary devices make it a versatile choice for safeguarding electrical systems.