Function and Usage
The NB1L residual current circuit breaker is suitable for AC 50Hz, rated voltage 230V, and rated current up to 40A circuits. When a person is electrocuted or the grid leakage current exceeds the specified value, the residual current circuit breaker can quickly cut off the faulty power supply within an extremely short time to protect personal safety and electrical equipment. It also provides overload and short-circuit protection for the circuit and can be used for infrequent switching of the circuit. This product is applicable to various places such as industry, commerce, high-rise buildings, and residential buildings. It complies with the standards GB/T 16917.1 and IEC 61009-1, and has obtained CCC, CE, and KEMA-KEUR certifications.
Details Parameters
| Parameter Category | Parameter Item | Parameter Value |
|---|
| System Parameters | Rated Voltage (Un) | AC 230V |
| Rated Current (In) | 5A, 10A, 13A, 16A, 20A, 25A, 32A, 40A |
| Rated Insulation Voltage (Ui) | 400V |
| Rated Impulse Withstand Voltage (Uimp) | 4kV |
| Rated Residual Operating Current (IΔr) | 0.03A, 0.1A, 0.3A |
| Rated Residual Non-operating Current (IΔno) | 0.5IΔn |
| Rated Residual Operating Time (tn) | A type, AC type |
| Rated Frequency (fn) | 50Hz (rated at 50Hz) |
| Contact Form | B type, C type |
| Rated Ultimate Breaking Capacity (Icn) | 10000A |
| Rated Residual Breaking Capacity (IΔn) | 500A |
| Measurement of Residual Current Selective Tripping Time | See Table 2 |
| Electrical Life Under Normal Working Conditions | See Table 3, Figure 1, Figure 2 |
| Mechanical and Electrical Life | See Table 4 |
| Selection Guide | See Table 5 |
| Residual Current Trip Characteristics | 2.0Ω·m |
| Dimensions and Installation Dimensions | See Figure 3, Figure 4 |
| Internal Structure | 2 groups |
| Protection Level | IP2X |
| Installation Category | Class II |
