Three breaking-capacity ratings let you apply this MCB across different fault-level environments without oversizing. At 10 kA per EN 60898 it covers standard residential and commercial distribution boards. At 20 kA per IEC 60947-2 it meets industrial panel requirements where fault currents are higher — think motor control centers or sub-distribution near large transformers. The DC rating of 15 kA (IEC 60947-2) matters for railway DC auxiliary buses or battery-backed control circuits. The energy limiting class is 3, meaning it restricts let-through energy enough to protect downstream components in a selective coordination scheme.
Physical integration and environment
Ambient temperature range is -40 to +70 °C, storage down to -75 °C, with humidity limits up to 95% at 55 °C — no derating headache for outdoor cabinets or unheated enclosures.