| Product number | Hw-vcd20 |
| Maximum number of access channels | 20 Strings |
| Ambient temperature | -35~ +400C |
| environment humidity | 0-85% |
| Working elevation | 3000 meters |
| Maximum output of eight currents per channel | DC15A |
| Maximum open circuit current | DC1500V |
| fuse | Each positive and negative pole is connected to DC1500V photovoltaic special fuse |
| Whisker | The positive and negative poles of the current are respectively connected to the special lightning arrester for photovoltaic |
| breaker | The positive and negative terminals of the current are respectively connected to the photovoltaic special current interrupter, rated current 160A, voltage DC1500V |
| Confluence box design | Enclosed design of the cabinet, anti-static, anti-shock, dust, rust, rainwater penetration, flame retardant |
| Confluence box heat dissipation | Natural heat dissipation |
| Confluence box lightning protection | Leihui flow box grounding lightning protection |
| Insulation | Input ground, output to ground, input to output insulation resistance ≥ 20MΩ |
| System response time | 1 second |
| Working power | Use internal bus DC power |
| Test accuracy | Photovoltaic cell measurement accuracy of 0.5, external analog of 0.2 |
| RS485 communication | RS485+ magnetic isolation/Modbus-RTU protocol, 4800/9600/19200/38400bps |
| Machine light waterproof rating | IP65, indoor and outdoor installation |