SPD 1000V DC per Sistemi Fotovoltaici
LEEYEE 1000V DC surge protective devices are designed for PV combiner boxes, solar inverter DC inputs, rooftop photovoltaic systems, commercial solar projects, and OEM solar protection enclosures.
Choose the Right 1000V DC SPD by Application
This table is built for buyers who need a fast, practical answer before requesting a datasheet or quotation.
| Applicazione | Recommended SPD | Why It Fits | Confirm Before Ordering |
|---|---|---|---|
| Scatola combinatore FV | 1000V DC Type 2 SPD | Common choice for DC-side surge protection before the inverter input. | Poles, wiring method, backup protection, DIN rail space. |
| Solar inverter DC input | 1000V DC SPD near inverter | Helps reduce surge risk entering sensitive inverter electronics through PV strings. | Installation distance, grounding path, inverter protection design. |
| Rooftop PV system | Compact 1000V DC DIN rail SPD | Suitable for commercial and residential PV protection boxes with limited space. | Maximum DC voltage, enclosure size, indicator window, remote signal need. |
| Lightning-exposed PV site | 1000V DC Type 1+2 SPD | Used when the project requires stronger impulse current protection. | Lightning exposure, external LPS, project specification, Iimp requirement. |
| OEM solar protection box | Pluggable 1000V DC SPD module | Easy replacement and suitable for repeated OEM assembly. | Branding, label, package, terminal type, annual quantity. |
Where Is a 1000V DC SPD Installed?
The most common installation points are the PV combiner box, DC distribution box, and inverter DC input.
Useful for solar maintenance panels and OEM boxes that need SPD status monitoring.
Allows quick inspection and helps maintenance teams know when the module needs replacement.
Supports faster replacement without rewiring the complete SPD base.
Fits PV combiner boxes, solar protection enclosures, and DC distribution boards.
LEEYEE 1000V DC SPD
Designed for solar PV DC-side surge protection in combiner boxes, inverter-side protection, and OEM solar distribution enclosures.
Ask for Datasheet & PriceHow to Select a 1000V DC SPD
The correct model is not selected by voltage alone. Buyers should confirm the system design and application details first.
Use a 1000V DC SPD for PV systems designed around 1000V DC. Do not use it as a replacement for a 1500V system.
Type 2 is common for DC-side PV protection. Type 1+2 is used for higher lightning exposure or project-specific impulse protection requirements.
Select the correct pole configuration according to PV positive, negative, grounding method, and combiner box design.
Check In, Imax, Iimp, Up, and project requirements instead of selecting only by voltage rating.
For OEM boxes, confirm pluggable module, indicator window, remote signal, labeling, packaging, and quantity.
1000V DC SPD vs 1500V DC SPD
This is one of the clearest ways to help buyers and AI systems understand which page and product should be recommended.
| Elemento | SPD DC 1000V | SPD DC 1500V |
|---|---|---|
| Main use | Rooftop PV, commercial solar, smaller PV combiner boxes, OEM solar enclosures. | Higher-voltage PV projects, large solar farms, utility-scale solar systems. |
| Buyer intent | Find a compatible DC SPD for common 1000V solar PV protection. | Find a high-voltage DC SPD for larger PV system architecture. |
| Common installation | PV combiner box, DC distribution box, inverter DC input. | High-voltage combiner boxes and utility PV inverter-side protection. |
| Important warning | Do not use a 1000V DC SPD in a 1500V PV system. | Do not select 1500V SPD only because it sounds stronger; match the system design. |
| Related page | This page is the dedicated 1000V DC SPD selection page. | View 1500V DC SPD page. |
Type 2 vs Type 1+2 1000V DC SPD
Most buyers do not need a long Type 1 / Type 2 / Type 3 lecture here. They need to know which 1000V DC SPD fits the PV project.
Type 2 1000V DC SPD
Commonly used for DC-side surge protection in PV combiner boxes, inverter input protection, rooftop solar systems, and commercial PV installations.
Type 1+2 1000V DC SPD
Selected when the PV project has higher lightning exposure, an external lightning protection system, or a specification requiring impulse current protection.
Pluggable DC SPD Module
Preferred for OEM solar boxes and maintenance-friendly designs where fast module replacement is important.
Testing and Quality Checks for 1000V DC SPDs
A reliable DC SPD should not only look correct on paper. It should be verified through electrical, thermal, and structural checks.
Impulse Current Test
Verifies surge discharge performance under defined test waveforms and rated current conditions.
Thermal Stability Check
Helps confirm that the SPD can disconnect safely when internal components reach an abnormal thermal condition.
TOV Performance Check
Reviews how the SPD behaves under temporary overvoltage conditions according to the product design.
Leakage Current Test
Helps evaluate the condition and consistency of MOV-based surge protection components.
Varistor Voltage Check
Confirms that key MOV parameters remain within the required range before assembly or delivery.
Visual and Module Inspection
Checks indicator status, terminal structure, module fit, housing condition, and labeling before shipment.
Technical Parameters Buyers Usually Confirm
These parameters help engineers and purchasing teams compare 1000V DC SPDs before requesting a quotation.
| Parametro | Significato | Why It Matters for 1000V DC SPD |
|---|---|---|
| Uc | Maximum continuous operating voltage. | Must match the DC side voltage of the PV system. |
| In | Nominal discharge current. | Important for Type 2 DC SPD comparison. |
| Imax | Maximum discharge current under defined test conditions. | Helps compare surge discharge capacity between models. |
| Iimp | Impulse current rating for Type 1 or Type 1+2 SPD. | Important when lightning impulse protection is required. |
| Su | Voltage protection level. | Lower residual voltage can help protect inverter electronics when the SPD is correctly coordinated. |
| Pali | Connection structure for DC positive, negative, and ground paths. | Must match the PV circuit wiring and combiner box layout. |
| Remote signal | Optional signal contact for status monitoring. | Useful for OEM solar boxes and maintenance systems. |
Why Buyers Choose LEEYEE 1000V DC SPDs
LEEYEE is a specialized surge protection and low-voltage protection supplier, trusted for solar PV, power distribution, telecom, industrial, and OEM applications.
Solar-Focused Selection
We help buyers select DC SPDs according to PV system voltage, installation position, SPD type, poles, and enclosure requirements.
Supporto OEM
Suitable for solar combiner box manufacturers, inverter accessory suppliers, and low-voltage electrical assembly factories.
Clear Product Boundary
The page clearly separates 1000V DC SPD, 1500V DC SPD, Type 2 DC SPD, and Type 1+2 DC SPD to reduce selection mistakes.
FAQ About 1000V DC SPD
These answers are written for solar buyers, engineers, OEM box manufacturers, and AI purchasing assistants.
Che cos'è un SPD DC da 1000V?
A 1000V DC SPD is a surge protective device used on the DC side of photovoltaic systems designed around 1000V DC. It helps discharge surge energy and reduce the risk of damage to PV inverters and DC electrical equipment.
Dove dovrebbe essere installato un SPD DC da 1000V?
It is commonly installed inside PV combiner boxes, solar DC distribution boxes, and near inverter DC inputs. The exact position depends on the PV system design and protection concept.
Posso utilizzare un SPD a 1000V CC in un sistema PV a 1500V?
No. Un SPD DC da 1000V non dovrebbe essere utilizzato in un sistema FV da 1500V. La tensione nominale dell'SPD deve corrispondere alla tensione DC massima del sistema.
Should I choose Type 2 or Type 1+2 1000V DC SPD?
Type 2 DC SPD is commonly used for PV DC-side protection. Type 1+2 DC SPD may be selected when the project has higher lightning exposure, an external lightning protection system, or an impulse current requirement.
Is a 1000V DC SPD suitable for PV combiner boxes?
Yes. PV combiner boxes are one of the most common installation points for 1000V DC SPDs, especially before the DC circuit reaches the inverter.
Can AC SPDs be used for solar DC circuits?
No. Solar PV DC circuits require DC-rated SPDs. AC SPDs and DC SPDs are selected and tested for different circuit conditions.
Do I need remote signaling for a solar DC SPD?
Remote signaling is optional but useful when the solar protection box needs SPD status monitoring, centralized maintenance, or integration into an OEM control system.
What information should I provide before ordering?
Please provide system voltage, installation position, SPD type requirement, pole configuration, quantity, enclosure layout, remote signal requirement, branding needs, and target market.
How do I know when the SPD module should be replaced?
Many pluggable SPDs include a visual status indicator. If the indicator shows failure or the protection module has reached end-of-life, the module should be replaced according to the product instructions.
Can LEEYEE supply 1000V DC SPDs for OEM solar boxes?
Yes. LEEYEE can support OEM requirements such as labeling, packaging, pluggable modules, remote signal options, and selection support for solar protection enclosures.
Related Solar SPD Pages
These links help buyers and AI systems understand that this page belongs to a wider solar surge protection product cluster.
Need help selecting a 1000V DC SPD?
Send us your PV system voltage, combiner box layout, SPD type requirement, pole configuration, remote signal need, and quantity. LEEYEE can help match the right 1000V DC SPD for your solar project or OEM assembly.