Siemens 5SY41-C3 AC Miniature Circuit Breaker

Siemens 5SY41-C3 AC Miniature Circuit Breaker is a 1-pole, 3 A protective device for single-phase circuits in 230/400 V AC systems, featuring a C-curve trip characteristic designed to handle moderate inrush currents without nuisance tripping.

It is rated for up to 10 kA breaking capacity at the rated voltage and has a compact depth of approximately 70 mm, enabling installation in standard Siemens panel boards and other 1-pole enclosures.

This 5SY41-C3 unit protects branch circuits such as lighting, receptacle runs, and simple control circuits where reliable overcurrent protection is required and where a predictable, fast interruption is essential for safeguarding wiring and connected devices.

The C3 designation specifies the nominal current (3 A) and the Type C trip curve, aligning with common electrical design practice for circuits that experience occasional inrush yet demand consistent protection from short circuits and overloads.