Siemens 5SY5108-7

The SUPPLEMENTARY PROTECTOR is a 1-pole miniature circuit breaker designed for universal current applications, featuring a rated current of 8 Amps and a trip characteristic of C. This device operates at a voltage of 220 VDC and 230/400 VAC, making it suitable for various electrical systems.

With a compact design measuring 18mm in width and 76mm in depth, it is optimized for installation on DIN rails. The breaker boasts a mechanical service life of approximately 10,000 operating cycles and includes thermal magnetic trip technology for reliable operation. Its breaking capacity is rated at 10 kA according to EN 60898 and 15 kA for DC as per IEC 60947-2 standards.

Furthermore, the device features an IP20 enclosure, ensuring protection against solid objects larger than 12.5 mm. It can operate in environments with temperatures ranging from -40 °C to 70 °C and can withstand humidity levels of up to 95% RH at 55°C. Compliance with international standards such as IEC/EN 60898-2 and UL1077 facilitates its integration into various applications, while its ability to support supplementary devices enhances its functionality.