DS50PV/51 are type 2 surge protectors are designed to protect against lightning surge voltages in photovoltaic power supply network. Based on the use of specific varistors, providing a protection in common mode or common and differential mode.
Electrical Properties
| SPD type | 2 | |
| Network | PV network 1000 Vdc | |
| Nominal PV voltage | Uocstc | 1000 Vdc |
| Max. PV operating voltage | Ucpv | 1200 Vdc |
| Residual Current | Ipe | None |
| PV Permanent Operating current | Icpv | < 0.1 mA |
| Follow current | If | None |
| Nominal discharge current | In | 15 kA |
| Max. discharge current | Imax | 40 kA |
| Total Maximal discharge current | Imax Total | 60 kA |
| Current withstand short circuit PV | Iscpv | 15000 A |
| Connection mode(s) | +/-/PE | |
| Protection mode(s) | Common/Differential mode | |
| Protection level +/- | Up | 4.6 kV |
| Protection level +/PE (-/PE) | Up | 2.6 kV |
Mechanical Properties
| Technology | MOV+GDT | |
| Connection to Network | Screw terminals: 2.5-25 mm² | |
| Format | Plug-in modular box | |
| Mounting | Symmetrical rail 35 mm (DIN 60715) | |
| Housing material | Thermoplastic UL94-V0 | |
| Operating temperature | Tu | -40/+85°C |
| Protection rating | IP20 | |
| Failsafe mode | Disconnection SPD of the PV line | |
| Disconnection indicator | 2 mechanical indicators - Green/Red | |
| Spare module(s) | DSM50PV-1000G/51 | |
| Remote signaling of disconnection | Option DS50PVS-1000G/51 - output on changeover contact | |
| Dimensions | See diagram | |
| Weight | 0.285 kg |
Deconnector
| Thermal disconnector | internal | |
| Fuses | Without |
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