The Schneider Electric C160H460FM is a ComPacT NS new generation 4-pole fixed-mount circuit breaker with a MicroLogic 6.0 electronic trip unit, rated 1600 A at 50 °C. It is a manually operated distribution breaker built to EN/IEC 60947-2 standard, with an ultimate breaking capacity (Icu) of 85 kA at 220/240 V AC and 70 kA at 380/415 V AC. The 1600 A frame means this is sized for a main or heavy feeder in a low-voltage switchboard, not a branch circuit — expect to see it on the incoming side of a large distribution panel or as a tie breaker in a high-current bus.
The MicroLogic 6.0 electronic trip unit provides four protection curves: L (long-time overload), S (short-time short circuit), I (instantaneous short circuit), and G (ground fault). That G function is critical for personnel protection in grounded systems; it's not just an equipment safeguard. The 4-pole version with neutral on the left is standard for three-phase plus neutral distribution, and the fixed mount with backplate support means it bolts directly into a switchboard, not a DIN rail.
Integration and physical fit
The breaker measures 327 mm high by 280 mm wide by 147 mm deep — check your enclosure depth before committing. IK07 impact rating means it can withstand a 2 J impact, so it's reasonably robust for a switchboard environment.
Electrical durability and diagnostics
Mechanical durability is rated at 10,000 cycles; electrical durability varies by load — 1,000 cycles at full rated current at 690 V, up to 5,000 cycles at half current at 440 V. The MicroLogic 6.0 trip unit includes four red LEDs for fault indication (one each for L, S, I, G trip causes) and a yellow LED for overload pre-alarm. That's a real time-saver during commissioning or fault-finding — you get a direct visual on what caused the trip without needing a laptop or software. The thermal memory (20-minute reset) prevents immediate reclosure after an overload, which protects the downstream cable and load from repeated thermal stress.