The Schneider Electric C16N3TM160C is a ComPacT NSX160N molded-case circuit breaker with a 160 A TM-D thermal-magnetic trip unit, 3 poles, and a 50 kA breaking capacity at 415 V AC (Icu per IEC 60947-2). It's a distribution-grade MCCB for panelboard or backplate mounting, rated for isolation and suited for protecting cable and moderate motor circuits in commercial and industrial switchboards. The 160 A frame at 50 °C means this breaker carries its full rating at elevated panel ambient — no derating needed until you push past that temperature.
The N breaking capacity code delivers 50 kA Icu at 415 V AC, which is the standard high-fault rating for North American 480Y/277 V and European 400 V distribution. That 50 kA at 415 V gives you solid selectivity with upstream 100 kA or 150 kA frames — the NSX160N coordinates cleanly with a ComPacT NS630b or MasterPact MTZ on a typical 800 A transformer secondary. For a 160 A feeder, this is the typical spec for a main breaker in a downstream panel or a large motor branch circuit.
The TM-D trip unit is fixed thermal-magnetic: the L protection (thermal) handles overloads with a time-current curve that tracks cable heating, and the I protection (magnetic) provides instantaneous short-circuit pickup. No electronic adjustment or ground-fault module — this is the straightforward, no-nonsense trip for standard distribution where you don't need LSIG or communication. The 160 A rating at 50 °C is the Ir setting; the magnetic pickup is fixed at roughly 10x In (1600 A), typical for TM-D. Power dissipation runs 13.95 W per pole, so three poles pull about 42 W — factor that into enclosure thermal rise if you're packing multiple breakers in a can.
Front connections both top and bottom — no rear or plug-in option on this variant. The 105 mm width, 161 mm height, and 86 mm depth fit standard MCCB cutouts in switchboard chassis. Connection pitch is 35 mm, matching standard busbar spacing.
Operates at 0–2000 m without derating; above that, derate per IEC 60947-2. Humidity range 0–95% non-condensing. No earth-leakage protection integrated — specify a separate Vigi module or external RCD if needed.