DC MCB
DC Miniature Circuit Breaker
Main Features
Industry: PV Solar, data center, railway, seafaring and new energy etc.
Function: Overload and short circuit protection,
Rated Voltage: up to 1000 Vdc
Rated Current: up to 63 A
Standard: IEC 60947-2
Main Ratings According to IEC 60947-2
| Item | Ratings |
|---|---|
| Rated Voltage (Ue) | 250Vdc per pole Max. |
| Rated Current (In) | 6A, 10A, 13A, 16A, 20A, 25A, 32A, 40A, 50A, 63A |
| Rated Insulation Voltage (Ui) | 1000V |
| Impulse Withstand Voltage (Uimp) | 4kV |
| Rated switching capacity (Icn) | 6kA (1p/250V, 2P/500, 4P/1000V); 10kA (1p/150V,2p/250V,4p/500V) |
| Electrical Life | ≥1,500 |
| Mechanical Life | ≥10,000 |
| Degree of Protection | IP 20 with conductors, IP40 in enclosure with cover |
| Pollution Degree | 2/ III |
| Ambient Temperature | -35℃~+70℃ |
| Storage Temperature | -40℃~+80℃ |
| Humidity | ≤95% |
| Mounting | 35mm DIN Rail |
Wiring Diagram
| 1p | 2p | 3p | 4p |
|---|---|---|---|
 |
 |
 |
 |
| 250 Vdc | 500 Vdc | 750 Vdc | 1000 Vdc |
Tripping Characteristics
| Test | Test Current | Starting State | Trip or Non-trip Time Limit | Expected Outcome |
|---|---|---|---|---|
| 1 | 1.05 In | Cold | t≤1h | No tripping |
| 1 | 1.30 In | Followed | t＜1h | Trip |
| 2 | 7 In | Cold | t≤0.2S | No tripping |
| 2 | 10 In | Cold | t＜0.2S | Trip |