Function and Usage
The NL210 residual current circuit breaker is suitable for AC 50Hz, rated voltage up to 415V, rated current up to 63A circuits, used to detect AC leakage, pulsating DC leakage, smooth DC leakage, composite wave leakage, and high-frequency leakage up to 1kHz. When a person gets electrocuted or the circuit leakage current exceeds the specified value, the residual current circuit breaker automatically cuts off the faulty power supply within an extremely short time to protect personal safety and electrical equipment. The circuit breaker can also be used for non-frequent switching operations in normal conditions. The product is applicable to industrial, commercial, high-rise buildings, and residential areas. Standards: GB/T 16916.1, GB/T 22794, IEC 61008-1, IEC 62423, certified with CCC, CE, DEKRA, etc.
Detailed Parameters
| Parameter Category | Parameter Item | Parameter Value |
|---|
| System Parameters | Rated Operating Voltage (Ue) | AC 230V/240V (2P), AC 400V/415V (4P) |
| Poles | 2P, 4P |
| Rated Operating Current (In) | 25A, 40A, 63A |
| Rated Insulation Voltage (Ui) | 500V |
| Rated Impulse Withstand Voltage (Uimp) | 4kV |
| Rated Frequency | 50Hz |
| Rated Residual Operating Current (Inn) | 0.03A, 0.1A, 0.3A |
| Residual Current Operation Type | B type |
| Rated Non-Operation Residual Current (Ino) | 0.5Inn |
| Rated Limiting Short-Circuit Current (Inc) | 10000A |
| Rated Limiting Residual Short-Circuit Current (Iac) | 10000A |
| Rated Making and Breaking Capacity (Im) | 500A (25A, 40A) or 630A (63A) |
| Rated Residual Making and Breaking Capacity (Im) | 500A (25A, 40A) or 630A (63A) |
| Dielectric Strength | 2000V |
| Pollution Degree | Level 2 |
| Protection Level | IP20 |
| Mechanical Life | 4000 times |
| Electrical Life | 4000 times |
| Rated Current Operation Breaking Time | See Table 2 |
| Current Correction Factor at Different Altitudes | See Table 3 |
| Environmental Temperature | -5℃～+40℃ |
| Air Relative Humidity | ≤95% |
| Performance Indicators | Breaking Time of Residual Current Operation | |
| InA | IΔn(A) |
| 25, 40, 63 | 0.03, 0.1, 0.3 |
| | Breaking Time s When Residual Current (IΔ) Equals the Following Values |
| | IΔn 2IΔn 5IΔn 5A-200A 500A Maximum Breaking Time |
| | 0.1 0.08 0.04 0.04 0.04 |
| Current Correction Factor at Different Altitudes | |
| Current Correction Factor at Different Altitudes | |
| ≤ 2000m | 1.0 |
| (2000-3000)m | 0.9 |
| ≥ 3000m | 0.8 |
