Function and Application
The NL1-63 residual current device (without overcurrent protection) is suitable for AC 50Hz, rated voltage two-pole 230V, four-pole 400V, with a rated current up to 63A circuits. When a person gets an electric shock or the leakage current of the power grid exceeds the specified value, the residual current device can quickly cut off the faulty power supply within an extremely short time to protect personal safety and electrical equipment. It can also be used as infrequent switching and starting for the circuit. The product is applicable to various places such as industry, commerce, high-rise and residential buildings. It complies with the standards: GB/T 16916.1, IEC 61008-1, and has obtained CCC, SEMKO, CE, RCC, EAC and other certifications.
Detailed Parameters
| Parameter Classification | Parameter Item | Parameter Value |
|---|
| Technical Parameters | Rated Voltage (Ue) | AC 230V (2P), AC 400V (4P) |
| Rated Current (In) | 25A, 40A, 63A |
| Rated Insulation Voltage (Ui) | 500V AC |
| Rated Impulse Withstand Voltage (Uimp) | 4kV |
| Rated Residual Operating Current (IΔn) | 0.03A, 0.1A, 0.3A |
| Poles | 2P, 4P |
| Classification according to operation condition when DC component exists | AC Type |
| Rated Limiting Short-Circuit Current (InC) | 6000A |
| Rated Limiting Residual Short-Circuit Current (IΔC) | 6000A |
| Rated Making and Breaking Capacity (Im) | 500A (In=25, 40A); 630A (In=63A) |
| Rated Residual Making and Breaking Capacity (IΔm) | 500A (In=25, 40A); 630A (In=63A) |
| Rated Non-trip Residual Current | 0.5IΔn |
| Residual Current Trip Time | See Table 2 |
| Mechanical and Electrical Life | See Table 3 |
| Tightening Torque | 2.5N·m |
| Outline Dimensions and Installation Dimensions | See Figure 1, Figure 2 |
| Pollution Degree | Level 2 |
| Protection Level | IP20 |
| Installation Category | Category II |
| Parameter Classification | Parameter Item | Parameter Value |
| 3.1 Residual Current Trip Time | InA | IΔn(A) |
| | Tripping Time s When Residual Current (IΔ) Equals the Following Values |
| | IΔn 2IΔn 5IΔn 5A-200A 500A Maximum Tripping Time |
| 25, 40, 63 | 0.03, 0.1, 0.3 0.1 0.08 0.04 0.04 0.04 |
| Parameter Classification | Parameter Item | Parameter Value |
| 3.2 Mechanical and Electrical Life: The residual current device should be able to withstand the number of cycles specified in Table 3. | In(A) | Operation Cycle Times |
| | Load Operation Times (times) No Load Operation Times (times) Operation Frequency (times/hour) |
| 25 | 2000 2000 240 |
| 40, 63 | 2000 1000 120 |
| Parameter Classification | Parameter Item | Parameter Value |
| 3.3 Applicable for (4~16)mm² copper wire connection (see Table 4). The wiring method uses screw tightening, with a torque of 2.5N·m. | Rated Current In(A) | Copper Wire Nominal Cross-sectional Area (mm²) |
| 25 | 4 |
| 40 | 10 |
| 63 | 16 |
