The SIEMENS 5SY6104-7CC is a 1-pole miniature circuit breaker rated for 230/400 V with a 4 A trip setting and a type C tripping characteristic. Designed for protection of lighting and small motor circuits, it interrupts fault currents up to 6 kA to prevent wiring damage and reduce fire risk. Its single-pole configuration fits standard DIN-rail panels for straightforward installation and compact distribution boards. Use it where precise overcurrent protection for low-current circuits is required, ensuring reliable disconnection of short circuits and overloads while maintaining predictable response to inrush currents from motors and transformers.