| Manufacturer part number (MPN) | C125S4FM |
| EAN / GTIN | 3606482238480 |
| HS code | 8536.90 |
| Sales unit | pcs |
| Product name | ComPacT NS new generation |
| Product or component type | Basic frame |
| Device application | Distribution |
| Poles description | 4P |
| Network type | AC |
| Breaking capacity code | NA |
| Suitability for isolation | Yes conforming to IEC 60947-3 |
| Network frequency | 50/60 Hz |
| Control type | Manually operated |
| mounting mode | Fixed |
| Upside connection | Front |
| Downside connection | Front |
| [Ie] rated operational current | AC-23A: 1250 A AC 50/60 Hz 220/240 V; AC-23A: 1250 A AC 50/60 Hz 380/415 V; AC-23A: 1250 A AC 50/60 Hz 440/480 V; AC-23A: 1250 A AC 50/60 Hz 500/525 V; AC-23A: 1250 A AC 50/60 Hz 660/690 V |
| [Ui] rated insulation voltage | 800 V AC 50/60 Hz conforming to IEC 60947-3 |
| [Uimp] rated impulse withstand voltage | 8 kV conforming to IEC 60947-3 |
| [Ith] conventional free air thermal current | 1250 A at 60 °C |
| [Icw] rated short-time withstand current | 25 kA during 0.5 s conforming to IEC 60947-3; 4 kA during 20 s conforming to IEC 60947-3 |
| [Icm] rated short-circuit making capacity | 52 kA 690 V AC at 50/60 Hz |
| [Ue] rated operational voltage | 690 V AC 50/60 Hz conforming to IEC 60947-3 |
| Contact position indicator | Yes |
| Visible break | No |
| Mechanical durability | 10000 cycles conforming to IEC 60947-3 |
| Electrical durability | 2000 cycles 440 V AC 50/60 Hz conforming to IEC 60947-3 |
| Connection pitch | 70 mm |
| Height | 280 mm |
| Width | 327 mm |
| Depth | 147 mm |
| Product weight | 18 kg |
| Standards | IEC 60947-3 |
| Product certifications | IECEE CB Scheme |
| IP degree of protection | IP40 conforming to IEC 60529 |
| IK degree of protection | IK07 conforming to EN 50102 |
| Pollution degree | 3 conforming to IEC 60947-3 |
| Ambient air temperature for operation | -25…70 °C |
| Ambient air temperature for storage | -50…85 °C |
| Number of Units in Package 1 | 1 |
| Country of origin | IT |
| Warranty (in months) | 18 |