Siemens 5SY4304-8

The miniature circuit breaker is designed for AC voltage applications, specifically rated for 400 V and a maximum current of 4 A. With a compact width of 54 mm and a depth of 70 mm, this device is suitable for installation in limited spaces. It features a tripping characteristic of type D, which is essential for applications that require specific overload protection.

Certified under UL1077, this unit complies with the standards set by both IEC 60898-1 and IEC 60947-2, ensuring reliable operation in various environmental conditions, including temperatures ranging from -40 °C to 70 °C. The device has a rated short-circuit breaking capacity of 35 kA at 400 V, providing robust protection against overcurrent situations.

With a pollution degree of 3 and an overvoltage category of 3, it is designed for industrial and infrastructural applications. The supplementary protector also includes features such as touch protection and is halogen-free, making it compliant with modern safety standards.

Additional installation options are available, and the device supports a conductor cross-section of up to 35 mm². It is capable of operating efficiently with a mechanical service life of approximately 10,000 cycles. The product’s characteristics make it a suitable choice for various industrial applications where reliable circuit protection is paramount.