| RDU8DC | B | 20kA | 2 | DC500V |
| Product code | Protection class | Maximum discharge | Number of poles | Maximum continuous operating voltage |
| Direct current surge device | B:Secondary protection | 20kA 40KA |
2P 3P |
Front wiring(no code) Backboard connection |
● Operating ambient temperature: -40°C~+70°C;
● Storage temperature:-40°C~+70°C;
● Altitude:Installation point elevation ≤2000m;
● The relative humidity of the atmosphere does not exced 50% when the ambient air temperature is +40℃, and higher relative humidity can be allowed at lower temperatures, such as 90% at 20℃. Special measures should be taken for occasional condensation due to temperature changes;
● Pollution level:Level 2;
● Level of protection:IP20;
● Installation direction:
①Vertical installation,installation surface and vertical planein clination≤+5°;
②Horizontal installation.
| Type specification | Maximum continuous operating voltage Ucpv | Nominal discharge current In | Maximum discharge current Imax | Response time | Operating ambient temperature |
| RDU8DC-B20 | 1000VDC | 10kA | 20kA | ≤25ns | -40 ~ +70℃ |
| RDU8DC-B40 | 20kA | 40kA |
