The Schneider Electric C080H450FM is a ComPacT NS new generation 4-pole circuit breaker rated 800 A at 50 °C, fitted with a MicroLogic 5.0 electronic trip unit. It's a manually operated, fixed-mount distribution breaker built to EN/IEC 60947-2, with an ultimate breaking capacity (Icu) of 85 kA at 220/240 V AC, 70 kA at 380/415 V AC, and 65 kA at 440 V AC — numbers that tell you it handles high-fault-current panels without cascading upstream. The MicroLogic 5.0 provides LSI protection: long-time overload (L), short-time short-circuit (S), and instantaneous short-circuit (I). The thermal memory holds for 20 minutes after a trip, so a hot restart sees the same protection curve as the initial fault — important for motor or transformer feeders that cycle.
Fixed backplate mount, 280 mm wide × 327 mm high × 147 mm deep, with a 70 mm connection pitch. Front connections top and bottom. Neutral is on the left. IK07 impact rating handles incidental tool contact during commissioning. Overvoltage category III suits fixed-installation distribution panels.