A DC Surge Protective Device (SPD) is an essential, low-cost safety component that shields sensitive DC-powered electronics—particularly solar PV systems, inverters, and controllers—from, destructive voltage spikes caused by lightning or electrical switching. Installed in parallel on DC circuits, these devices use metal oxide varistors (MOVs) to instantly divert excess energy to the ground.
| Product Description | Type1+2 Surge Ptotective Device | |||||
| Maximum Continuous Operating Voltage | Ucpv | 600Vdc | 800Vdc | 1000Vdc | 1200Vdc | 1500Vdc |
| Nominal Discharge Current(8/20μs) | In | 20kA | ||||
| Maximum Discharge Current(8/20μs) | Imax | 50kA | ||||
| Lightning Impulse Current(10/350μs) | limp | 12.5kA | 12.5kA | 9kA | 6.25kA | 6.25kA |
| Total discharge current for multipole SPD(10/350μs) | Itotal | 25kA | 25kA | 18kA | 12.5kA | 12.5kA |
| Voltage Protection Level | Up | ≤2.6kV | ≤3.2kV | ≤3.8kV | ≤4.5kV | ≤5.2kV |
| Response Time | tA | ≤25ns | ||||
| Short-circuit current rating | Iscpv | 10A | ||||
| heat tripping device | insertion | |||||
| Max. Backup Fuse | 125A~160A gPV FUSE | |||||
| Mechanical properties | ||||||
| Product size | see the photo as below | |||||
| Wiring method | screw terminal 2.5-25mm² | |||||
| Normal/Fault display | green/red | |||||
| Maximum remote signal load voltage/current | 250V/0.5A[AC],30V/3A[DC] | |||||
| Maximum cross-sectional area of remote signal connection line | 1.5mm2 | |||||
| Installation | 35mm DIN Rail | |||||
| Operating Temperature range | Tu | -40-+85° | ||||
| Protection level | IP20 | |||||
| Enclosure material | Thermoplastic material, compliant with UL94-V0 | |||||
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