| Manufacturer part number (MPN) | C4042D250 |
| EAN / GTIN | 3606482003255 |
| Sales unit | pcs |
| Package quantity | 4 pcs |
| Rated current | 250 A |
| Number of poles | 4P |
| Range | ComPacT |
| Range of product | ComPacT NSX400...630 |
| Product or component type | Trip unit |
| Trip unit name | MicroLogic 2.3 |
| Trip unit technology | Electronic |
| Range compatibility | ComPacT NSX400; ComPacT NSX630 |
| Device application | Distribution |
| Poles description | 4P |
| Protected poles description | 3D + N/2; 4D; 3D |
| Neutral position | Left |
| Trip unit protection functions | LSoI |
| Protection type | L : for overload protection (long time); So : for short time short-circuit protection with fixed delay; I : for instantaneous short-circuit protection |
| Trip unit rating | 250 A at 40 °C |
| [Ue] rated operational voltage | 690 V AC 50/60 Hz |
| Network type | AC |
| Network frequency | 50/60 Hz |
| Circuit breaker mounting mode | Fixed |
| Long-time pick-up adjustment type Ir (thermal protection) | Adjustable 9 settings |
| [Ir] long-time protection pick-up adjustment range | 70...250 A |
| Long-time protection delay adjustment type tr | Fixed |
| [tr] long-time protection delay adjustment range | 11 s at 7.2 x Ir; 16 s at 6 x Ir; 400 s at 1.5 x Ir |
| Neutral protection settings | 0.5 x Ir (3D + N/2); 1 x Ir (4D); No protection (3D) |
| Thermal memory | 20 minutes before and after tripping |
| Short-time protection pick-up adjustment type Isd | Adjustable 9 settings |
| [Isd] Short-time protection pick-up adjustment range | 1.5...10 x Ir |
| Short-time protection delay adjustment type tsd | Fixed |
| Instantaneous protection pick-up adjustment type Ii | Fixed |
| [Ii] instantaneous protection pick-up adjustment range | 3000 A |
| Earth-leakage protection | Without |
| Zone selective interlocking ZSI | Without |
| Local signalling | Flashing LED (green) for ready to operate; LED 105 % Ir (red) for overload; LED 90 % Ir (orange) for overload |
| Standards | EN/IEC 60947-2 |
| Electrical shock protection class | Class II |
| Pollution degree | 3 conforming to IEC 60947-1 |
| IP degree of protection | IP40 conforming to IEC 60529 |
| Ambient air temperature for operation | -25…70 °C |
| Ambient air temperature for storage | -50…85 °C |
| Warranty (in months) | 18 |
| Width | 184.7 mm |
| Height | 94.6 mm |
| Depth | 112.6 mm |
| Rated permanent current Iu | 250 A |
| Short-circuit release function | Delayed |
| External power supply required | No |
| Voltage type (operating voltage) | AC |
| With ground fault protection function | No |
| Rated switch current | 250 A |
| End value adjustment range undelayed short-circuit release | 3000 A |
| Type of motor protection | Electronic release |
| Voltage type for actuating | AC |
| Country of origin | France |