The C16B47E100 is a Schneider Electric ComPacT NSX160B moulded-case circuit breaker with a MicroLogic 7.2 E electronic trip unit, rated 100 A at 40 °C. The 40 kA Icu at 240 V AC (25 kA at 415 V, 20 kA at 440 V, 15 kA at 500 V) per IEC 60947-2 tells you the maximum fault current this breaker can safely interrupt at those voltages — critical for verifying the available fault current at the panelboard doesn't exceed the rating. The 4-pole (4P) configuration with left-side neutral suits distribution boards where the neutral is switched alongside the phases. The MicroLogic 7.2 E trip unit provides L (long-time overload), S (short-time short-circuit), I (instantaneous short-circuit), and R (earth-leakage) protection — all adjustable via the LCD display and toggle controls. This matters for motor or transformer feeders where repetitive starting can heat the cable.
Mounts on a backplate (flat on the back) in horizontal or vertical orientation.
Durability and duty cycles
Mechanical durability is 40,000 cycles. Electrical durability varies with load: 40,000 cycles at 440 V at half rated current (In/2), 20,000 cycles at 440 V at full In, 15,000 cycles at 690 V at In/2, and 7,500 cycles at 690 V at full In. For distribution applications where the breaker is switched infrequently, these cycle counts are generous; for frequent switching (e.g., capacitor bank or lighting contactor duty), the electrical endurance at the actual load current should be checked against the switching frequency.