This DC Surge Protector 1000V 3P is a Type 2 SPD that guards inverter DC inputs. It works as a dc surge protection device for solar panel strings up to 1000V DC.
Rooftop PV owners, solar installers and developers use it across South Africa. Farms and off-grid properties need it most, because long cable runs pick up lightning-induced surges. Browse our full AC/DC Protection Devices range.
DC Surge Protector 1000V 3P Key Benefits
- Diverts surges up to 40kA from PV strings to earth.
- Green or red window shows module status at a glance.
- Tested to EN 61643-31 for DC-side PV surge protection.
Key Specifications And Ratings
- Model: XLSPD-PV
- Surge Current Waveform: 8/20µs
- Nominal Discharge Current (In): 20kA
- Maximum Discharge Current (Imax): 40kA
- Standard: EN 61643-31
- Product Type: Solar DC Surge Protective Device (SPD)
- SPD Type: Type 2 / Class II
- Number of Poles: 3P
- Maximum Operating Voltage (Uc): 1000V DC
- Voltage Protection Level (Up): ≤ 3.8kV
- Configuration: DC+ / Earth / DC-
- Status Indicator: Green / Red
- Mounting: 35mm DIN Rail
- Markings: CE, TÜV SÜD
- Applications: Solar PV Systems, DC Combiner Boxes, Solar Inverter DC Protection
- Weight: Approximately 0.36–0.40kg
- Dimensions (W × H × D): 54 × 90 × 67.6mm
Compatibility And Combiner Box Fit
This unit acts as a surge protector for inverter DC inputs on grid-tied, hybrid and off-grid systems. Choosing an SPD for solar starts with your string’s open-circuit voltage. Keep that voltage below the 1000V DC rating, and you won’t buy the wrong unit.
On lower-voltage strings, compare the 500V 2P DC surge model. The unit clips onto a 35mm DIN rail inside a DC combiner box, next to 1000VDC solar fuses. Find more DIN rail protection in our Switchgear & Protection range.
Wire DC+, Earth and DC- to their terminals with a short, direct earth lead. Without a sound earth path, a surge has nowhere to go but the inverter. Our 1.2m earth spike gives that lead a dedicated earth point.
Browse enclosures in our solar combiner box range. The 2 string solar combiner box groups two PV strings before the inverter. Add DC isolators and fuses from our solar fuse and holder range.
AC mains distribution boards and 12V, 24V or 48V battery circuits need a different device. Installers often call this unit a dc spd or dc surge arrester.
Best Use Cases For PV
- Installers signing off new PV systems for a CoC.
- Homeowners protecting rooftop PV through summer storms.
- Farms and smallholdings with long DC cable runs.
Warranty Compliance And Trust
Testing follows EN 61643-31, the European adoption of the IEC 61643-31 PV surge standard. CE and TÜV SÜD markings appear on the unit, but they are not South African approvals.
Fitting must follow SANS 10142-1, while PV and embedded generation work falls under SANS 10142-1-2. A registered electrical contractor must install it and issue a Certificate of Compliance under the Electrical Installation Regulations.
Our solar installation team handles this work across the Vaal Triangle and Gauteng. Installations include a 12-month workmanship warranty, confirmed with your quote. Free quotes and site visits help you confirm string voltage before buying.
Check the status window after every storm, because red means the plug-in module needs replacing. That quick check keeps your solar surge protection working.
Solar Panel Energy has 13 years of experience and 500+ completed projects. Pay by EFT, card, cash or PayFast. Stock sits in 7 warehouses across South Africa, with nationwide delivery in 2 to 5 working days. Read our solar equipment FAQs for answers on ordering and delivery.
Contact our sales team to order the DC Surge Protector 1000V 3P with nationwide delivery. Call +27 81 841 7188 for help matching it to your string voltage.
Last Updated: October 2026
