The Siemens SENTRON 5SY5125-6CC is a 1-pole miniature circuit breaker rated 25 A at 220 V DC with a B-curve tripping characteristic and 10 kA breaking capacity per IEC 60947-2.
DC ratings and breaking capacity
Rated 220 V DC with a maximum of 250 V DC. The 10 kA breaking capacity at 220 V DC per IEC 60947-2 means it can safely interrupt a fault current up to 10,000 A without welding contacts or cascading failure upstream. Overvoltage category III covers fixed-installation distribution panels.
The combined terminal design at both top and bottom accepts screw-type terminations with a tightening torque of 2.5 to 3.5 N·m (22 to 31 lbf·in). Halogen-free and silicon-free construction suits environments sensitive to outgassing.
Installation depth is 70 mm. Ambient temperature range -25 to +55 °C operating, -40 to +75 °C storage. Sealable for tamper-proof installations.