The Siemens 5SY5213-7CC12 is a 2-pole miniature circuit breaker (MCB) from the 5SY5 series, rated for 440V DC with a 10kA breaking capacity and a C13 tripping characteristic. The C13 curve means it's designed for moderate inrush loads — typical for motor circuits, transformers, or capacitor banks in DC distribution panels — where the short-circuit capacity of 10kA at 440V DC provides adequate fault interruption for most industrial DC bus applications.
Deployment context
Snap-on DIN rail mounting for standard 35mm rail in control cabinets — fits alongside other 5SY5 series breakers in a DC sub-distribution board or UPS output panel. The 2-pole configuration handles both positive and negative rails in a 440V DC system, common in telecom rectifiers, solar combiner boxes, or battery banks.