| System Parameters | Model | NCZ2-50, NCZ2-100, NCZ2-150, NCZ2-200, NCZ2-250, NCZ2-300, NCZ2-350 |
| Tripping Form | 1+SPST/NO |
| Rated Insulation Voltage (Ui) | 14/12VDC |
| Minimum Display Step/With Negative Pressure | 100, 150, 200, 250, 350 |
| Rated Operating Current (In) | 250A (500VAC)¹st, 100A (500VDC)¹st, 1500A (500VDC)¹st, 200A (500VDC)¹st, 200A (500VDC)¹st, 250A (500VDC)¹st, 250A (500VDC)¹st |
| Rated Impulse Withstand Voltage (Uimp) | ≤8kV |
| Rated Short-Time Withstand Current (Icw) | 12-3000VAC |
| Rated Peak Withstand Current (Ipeak) | 75A·1h, 120A·2h, 225A·1h, 300A·1h, 375A·1h, 450A·1h, 525A·1h |
| Rated Short-Circuit Closing Capacity (Icm) | 50A·30s, 100A·30s, 150A·30s, 200A·30s, 250A·30s, 300A·30s, 350A·30s |
| Rated Short-Circuit Breaking Capacity (Icu) | 300A·0.6s, 100A·0.6s, 130A·0.6s, 200A·0.6s, 200A·0.6s, 200A·0.6s, 250A·0.6s |
| Performance Indicators | Action Time | <30ms (excluding rebound time) |
| Rebound Time | <10ms |
| Operational Life | >10000 times |
| Environmental Temperature Range | -25℃～+70℃ |
| Relative Humidity | ≤95%RH (no condensation) |
| Vibration Frequency | 10Hz～500Hz, Acceleration ≤5g (1g=9.8m/s²) |
| Weight | 250g, 270g, 295g, 350g, 375g, 450g, 450g |
| Communication | Auxiliary Power Supply Voltage (V) | 12V, 24V |
| Control Working Power (W) | 0.85W～1.7W |
| Protection Function | Rated Current (A) | 3.8, 1.4, 1.4, 1.4, 1.4, 1.4, 1.4 |
| Protection Current (A) | 0.18A±12V, 0.09A±24V, 0.04A±48V, 0.13A±12V, 0.17A±24V, 0.10A±48V |
| Installation | Installation Method | Rail Installation |
| Installation Dimensions (mm) | 24×45.4, 41×41.4, 53×41.4 |
