Schneider Electric ComPacT NSXm, C12N6TM125B, 125A at 40°C, 50kA 415V AC, 4P, thermal-magnetic TM-D trip unit.
| Parameter | Value |
|---|---|
| Product name | ComPacT NSXm |
| Product range | ComPacT |
| Product/component type | Circuit breaker |
| Device application | Distribution |
| Parameter | Value |
|---|---|
| Rated current (In) | 125 A at 40 °C |
| Poles configuration | 4P |
| Rated operational voltage (Ue) | 440 V AC 50/60 Hz |
| Rated insulation voltage (Ui) | 800 V AC 50/60 Hz |
| Rated impulse withstand voltage (Uimp) | 8 kV |
| Network type (AC/DC) | AC |
| Network frequency | 50/60 Hz |
| Utilisation category | Category A |
| Overvoltage category | III |
| Parameter | Value |
|---|---|
| Trip unit technology | Thermal-magnetic |
| Earth-leakage protection | Without |
| Suitability for isolation | Yes conforming to IEC 60947-2 |
| Electrical durability (cycles) | 20000 cycles at 440 V In/2 10000 cycles at 440 V In |
| Mechanical durability (cycles) | 20000 cycles |
| Parameter | Value |
|---|---|
| Mounting support | Backplate |
| Control type | Toggle |
| Local signalling/indication | Flag (green) for presence of auxiliary contacts |
| Number of 9 mm pitches | 12 module |
| Parameter | Value |
|---|---|
| Operating ambient temperature | -25...70 °C |
| Storage ambient temperature | -50...85 °C |
| IP degree of protection | IP40 conforming to IEC 60529 |
| Pollution degree | 3 conforming to IEC 60664-1 |
| Relative humidity | 0...95 % |
| Parameter | Value |
|---|---|
| Standards | EN/IEC 60947-2 |
| Parameter | Value |
|---|---|
| [Icu] rated ultimate short-circuit breaking capacity | 90 kA Icu at 220...240 V AC 50/60 Hz conforming to IEC 60947-2 50 kA Icu at 380...415 V AC 50/60 Hz conforming to IEC 60947-2 50 kA Icu at 440 V AC 50/60 Hz conforming to IEC 60947-2 |
| [Ics] rated service short-circuit breaking capacity | 90 kA at 220...240 V AC 50/60 Hz conforming to IEC 60947-2 50 kA at 380...415 V AC 50/60 Hz conforming to IEC 60947-2 50 kA at 440 V AC 50/60 Hz conforming to IEC 60947-2 |
| Parameter | Value |
|---|---|
| [Ir] long-time protection pick-up adjustment range | 0.7...1 x In |
| Trip unit protection functions | LI |
It is a 4-pole (4P) device, designed for distribution applications per EN/IEC 60947-2.
Mounts on a backplate in either horizontal or vertical orientation, flat on the back. The 108 mm width and 137 mm height fit standard enclosure cutouts; depth is 80 mm. Connection terminals accept compression lugs or busbars, with front-facing upside and downside connections for straightforward panel wiring. Neutral is on the left.
The C12N6TM125B has a performance level of N, meaning 50 kA at 415 V AC. That is the maximum fault current it can safely interrupt at that voltage.
This part is sourced to order against an RFQ through independent distribution. Submit a request for current availability and pricing.
It complies with EN/IEC 60947-2, the standard for low-voltage switchgear and controlgear. It is also suitable for isolation per that standard.
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