The C16N47E100 is a Schneider ComPacT NSX160N molded case circuit breaker with a MicroLogic 7.2 E electronic trip unit, rated 100 A at 40 °C. The trip unit provides L (long-time overload), S (short-time short-circuit), I (instantaneous short-circuit), and R (earth-leakage) protection — a full four-function package for distribution and feeder protection in a single device. The 90 kA Icu at 240 V AC (50/60 Hz) per IEC 60947-2 means it can safely interrupt a fault current up to that level without failing, which sets the SCCR for the downstream panel. At 480 V AC the interrupting rating is 50 kA Icu, still substantial for most industrial distribution boards.
The N breaking capacity code (50 kA at 415 V AC) is the standard industrial grade in the ComPacT NSX family — above the S (25 kA) but below the H (70 kA) and L (150 kA) grades. The 90 kA at 240 V AC gives headroom for low-voltage transformer secondaries. The MicroLogic 7.2 E adds energy metering and communication (time-stamped histories, demand values, power quality data) — this is the trip unit that turns a breaker into a panel-level power monitor, not just a protection device.
Mounting and integration — backplate, front connections, 35 mm pitch
The toggle control with LCD display gives local status and settings visibility.
Electrical and mechanical durability — cycles that define service life
Mechanical durability is 40,000 cycles — the number of open-close operations the mechanism can perform without maintenance. 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, and 7,500 cycles at 690 V at full In. For a feeder breaker that operates infrequently (a few times per year for maintenance switching), this is effectively a lifetime rating. For a breaker used as a disconnect in a frequent-start application, the 20,000-cycle figure at rated current sets the replacement interval.