The Siemens 5SY4204-5 is a robust miniature circuit breaker designed to provide reliable overcurrent protection in a variety of industrial and commercial applications. Engineered for quick assembly, this 2-pole circuit breaker is suitable for both AC and DC operations, with a rated voltage of 400V and a rated current of 4A. Its compact dimensions, with a width of 36mm and a mounting depth of 70mm, make it an ideal choice for space-constrained environments.
This circuit breaker features a tripping characteristic class A, ensuring precise protection for circuits that may experience sudden high peak currents. With a high breaking capacity of 10kA according to EN 60898 and a remarkable 35kA in accordance with IEC 60947-2, it is equipped to handle demanding short-circuit conditions, providing peace of mind for equipment and personnel safety.
The 5SY4204-5 is designed with user convenience in mind, offering features such as sealability for tamper-proof installations and touch protection for enhanced safety. It is also halogen-free and silicon-free, addressing environmental and health considerations. The device can be installed in any mounting position, and its terminals are designed for flexibility, accommodating a wide range of conductor cross-sections from 0.75 mm² to 35 mm² solid or stranded, and up to 25 mm² for finely stranded conductors with wire end processing.
With a mechanical operating life of 20,000 cycles, the Siemens 5SY4204-5 is built to last, ensuring long-term reliability and reduced maintenance needs. Its ambient operating temperature range of -25°C to +55°C, along with storage temperature capabilities from -40°C to +75°C, ensures consistent performance even in extreme conditions.
Overall, the Siemens 5SY4204-5 miniature circuit breaker is a high-quality protective device that combines performance, safety, and installation flexibility, making it a valuable addition to any electrical protection system.