ComPacT NSX 160 A, 200 kA — the high-fault panel backbone
The Schneider Electric C25R3TM160 is a ComPacT NSX circuit breaker rated 160 A at 40 °C with a TM-D thermal-magnetic trip unit, 3 poles, and a breaking capacity of 200 kA Icu at 415 V AC — the R-code rating, which means it handles fault currents up to 200 kA symmetrical without rupturing, so it can serve as the main breaker in a high-capacity distribution panel fed by a large transformer or a generator bus.
The TM-D unit provides L (thermal) overload protection and I (magnetic) short-circuit protection, so it covers both sustained overloads and instantaneous faults in one device.
Mounts to a backplate in either horizontal or vertical orientation, with front connections on both upside and downside. The 105 mm width, 161 mm height, and 86 mm depth fit standard ComPacT NSX panel cutouts and busbar systems. IP40 protects against solid objects larger than 1 mm — fine for a closed panel; not rated for washdown. IK07 impact resistance means it withstands a 2 J impact — enough for accidental tool drops during panel work, but not for public-area abuse.