The C25R46E160 is a Schneider Electric ComPacT NSX 250R frame moulded-case circuit breaker, rated 160 A at 40 °C, with a MicroLogic 6.2 E electronic trip unit providing LSIG protection — overload (L), short-time short-circuit (S), instantaneous short-circuit (I), and ground fault (G). It is a 4-pole unit with front connections, a toggle control, and an LCD display for energy metering and event logs.
The 140 mm width, 161 mm height, and 86 mm depth fit standard ComPacT NSX cutouts. Operating altitude is 0–2000 m without derating; above that, derate per the manufacturer's curve.
The MicroLogic 6.2 E trip unit adds ground-fault protection (G) on top of the standard LSIG set, plus energy metering — demand current, power, power quality, time-stamped event tables. This distinguishes it from a basic thermal-magnetic breaker: you get adjustable protection curves, thermal memory (20 min before and after tripping), and communication of data for integration with a building management or SCADA system. The 20000-cycle mechanical durability and 10000-cycle electrical durability at 440 V In give a realistic service life for distribution duty.