RCCB
Residual Current Circuit Breaker
Features
Function: Leakage current protection, ensuring people’s safety against electrocution and fire. (For people protection)
Type: AC, A, B
Standard: IEC 61008-1
| RCCB Type | Symbols | Feature |
|---|---|---|
| AC | Alternating Current only | |
| A | Full type AC features, + Detection of pulsating current with DC components |
|
| B | Full type A features, +Detection of high frequency currents up to 1kHz, + smooth DC currents. |
Main Ratings According to IEC 61008-1
| Type | AC | A | B |
|---|---|---|---|
| Model | Electromagnetic | Electromagnetic | Electromagnetic |
| Poles | 1P+N, 3P+N | 1P+N, 3P+N | 1P+N, 3P+N |
| Rated Voltage (Un) | 240V/415V | 240V/415V | 240V/415V |
| Insulation Voltage (Ui) | 500V | 500V | 500V |
| Rated Impulse Withstand Voltage (Uimp) | 4kV | 4kV | 4kV |
| Rated Frequency | 50/60Hz | 50/60Hz | 50/60Hz |
| Rated Current (In) | 16A, 20A, 25A, 32A, 40A, 50A, 63A | 16A, 20A, 25A, 32A, 40A, 50A, 63A | 16A, 20A, 25A, 32A, 40A, 50A, 63A |
| Rated Residual Operated Current (I△n) | 30mA, 100mA, 300mA | 30mA, 100mA, 300mA | 30mA, 100mA, 300mA |
| Rated Residual Non-operated Current (I△no) | 0.5 | 0.5 | 0.5 |
| Rated Limited Short-circuit Current (Icn) | 6kA | 6kA | 10kA |
| Rated Limited Residual Short-circuit Current (I△c) | 6kA | 6kA | 10kA |
| Rated Making and Breaking Capacity (Im) | 500A(In≤50A), 630A(In=63A) | 500A(In≤50A), 630A(In=63A) | 1kA |
| Rated Residual Making and Breaking Capacity (I△m) | 500A(In≤50A), 630A(In=63A) | 500A(In≤50A), 630A(In=63A) | 1kA |
| Electrical Life | ≥2,000 | ≥2,000 | ≥2,000 |
| Mechanical Life | ≥4,000 | ≥4,000 | ≥4,000 |
| Operating Temperature | -25℃~ 40℃ | -25℃~ 40℃ | -25℃~ 40℃ |
| Storage Temperature | -25℃~ 70℃ | -25℃~ 70℃ | -25℃~ 70℃ |
| Degree of Protection | IP20 | IP20 | IP20 |
| Basic Dimension | 36(72)x82x71 | 36(72)x82x71 | 54(72)x82x77 |
| Mounting | 35mm DIN Rail | 35mm DIN Rail | 35mm DIN Rail |





