01
Confirm maximum DC voltage
Match Ucpv or Uc to the actual maximum DC voltage. For PV systems, include maximum string open-circuit voltage and temperature effects.
DC Surge Protector & DC SPD Supplier
600V, 1000V and 1500V DC Surge Protective Devices
Looking for a DC surge protector or DC SPD supplier? LEEYEE supplies 600V, 1000V and 1500V surge protective devices for solar PV, selected industrial DC systems, distributors, panel builders and OEM projects. Confirm maximum voltage, SPD type, poles and installation position before quotation.
High-Voltage DC SPD Range
600–1500V DC
Type 2 / Type 1+2
2P / 3P Designs
Model Check
Documents
OEM Support
600V–1500V DC RangeVoltage-specific product configurations
Type 2 & Type 1+2Match installation position and surge risk
Model-Specific DocumentsCheck the exact model before approval
Quick Answer
Start With Voltage, Type and Pole Configuration
A DC surge protective device should not be selected from the system name alone. Confirm the maximum DC condition, surge protection level and wiring arrangement first.
02
Select Type 2 or Type 1+2
Type 2 supports downstream transient protection. Type 1+2 is considered where lightning-current capability or stronger coordination is required.
03
Confirm 2-pole or 3-pole wiring
Pole count must match the wiring diagram, grounding arrangement and required protection paths—not enclosure width alone.
Voltage Selection
Choose a DC SPD Range for Your System
Use this table as an initial product direction. Final selection should be checked against maximum voltage, wiring mode, installation position, backup protection and document requirements.
DC Voltage
Application
SPD Direction
Confirm Before Quotation
600V DC
Selected PV arrays, inverter inputs and industrial DC distribution systems.
2P or 3P Type 2 DC SPD.
Maximum voltage, wiring mode, required Up, backup fuse and remote contact.View 600V range →
1000V DC
Commercial PV strings, combiner boxes, inverter DC inputs and high-voltage DC equipment.
2P or 3P Type 1+2 options.
Maximum Voc, pole configuration, protection mode and project documents.View 1000V range →
1500V DC
Utility PV systems, high-voltage combiner boxes and inverter stations.
3P Type 1+2 high-voltage DC SPD.
System design, wiring configuration, Iimp requirement, Up level and certificate scope.View 1500V range →
Low-Voltage DC
Telecom power, monitoring equipment and selected low-voltage DC control circuits.
Voltage-specific Type 2 or signal/DC protection.
Nominal voltage, maximum continuous voltage, current and interface.View low-voltage range →
Product Matrix
DC Surge Protective Device Models
Compare representative 600V, 1000V and 1500V models. Request confirmation when you need a quotation, datasheet, document review or OEM information.
600V · TYPE 2
LY1-C40PV/2(S) 600V
Two-pole pluggable Type 2 DC SPD for compatible PV and selected industrial DC circuits.
Type2Ucpv600VPoles2PIn/Imax20/40kA
Up ≤ 2.2kV. Confirm wiring, backup protection and document scope.
600V · 3-POLE
LY1-C40PV/3(S) 600V
Three-pole pluggable Type 2 DC SPD for systems requiring a matching multi-line protection arrangement.
Type2Ucpv600VPoles3PIn/Imax20/40kA
Up ≤ 2.2kV. Optional remote contact; confirm actual system wiring.
1000V · TYPE 1+2
LY1-C40PV/2(S) 1000V
Two-pole pluggable Type 1+2 DC SPD for PV strings, combiner boxes and inverter DC inputs.
Type1+2Ucpv1000VPoles2PIn/Imax20/40kA
Iimp 6.25kA; Up 3.6kV. Confirm the latest datasheet and document scope.
1500V · HIGH VOLTAGE
LY1-C40PV/3(S) 1500V(D4)
Three-pole pluggable Type 1+2 DC SPD for high-voltage PV systems and inverter DC inputs.
Type1+2Ucpv1500VPoles3P D4In/Imax20/40kA
Iimp 6.25kA; Up 5.6kV. Confirm D4 wiring and project documents.
Model note: This matrix shows representative configurations. Confirm the latest datasheet, wiring diagram, certificate scope, backup protection and remote-contact option before quotation or project approval.
Solar PVStrings, combiner boxes and inverter DC inputs.
Selected DC Power SystemsSuitability confirmed by source type, fault current, grounding and documents.
Industrial DC PanelsDC boards, control and monitoring systems.
OEM EquipmentPanel builders, electrical brands and project suppliers.
Selection Risk
Why AC SPDs Cannot Replace DC SPDs
DC systems have different voltage behaviour, fault conditions and protection paths. The SPD must be designed and selected for the actual DC circuit.
- Confirm the maximum continuous DC voltage.
- Check positive, negative and PE protection paths.
- Match the SPD type to the surge design.
- Coordinate backup protection correctly.
- Keep connecting conductors short.
01
Do not select only from nominal voltage
PV open-circuit voltage changes with string design and temperature. Provide the maximum project value.
02
Do not confuse pole count with SPD type
A 2P or 3P enclosure does not indicate Type 2 or Type 1+2 performance.
03
Do not ignore backup protection
Internal thermal disconnection does not automatically replace external backup protection.
04
Do not assume one certificate covers every model
Voltage, poles, model suffix and branding can affect document applicability.
Testing Evidence
Quality Checks Behind DC Surge Protection
Equipment images support the manufacturing and verification process. Final performance and document scope must still be checked against the exact model.
MOV and GDT Validation
Component-level checks support verification of key protection elements before final assembly.
Impulse Testing
Surge testing supports verification of discharge-current and protection-performance declarations.
Thermal Stability
Thermal evaluation supports assessment of ageing, abnormal-voltage stress and disconnection behaviour.
Buyer Support
Documents, OEM Review and Project Supply
A B2B DC SPD order normally requires more than a product photo and price. LEEYEE can review the model, documents, branding and supply requirements together.
Model-Specific Documents
Request information needed for technical review, supplier approval or product-line evaluation.
Datasheet and declared electrical parameters
Wiring and configuration information
Dimensions and mounting information
Certificate scope review by model
Product images and quotation details
OEM and Distribution Support
Confirm product configuration and documents before finalising private-label artwork or a distributor range.
Logo, label and model naming review
Remote-contact configuration options
Datasheet, manual and packaging coordination
Sample evaluation before batch production
Project quantity and inspection requirements
Document scope notice: Certification and test-document availability depends on the exact model, voltage, SPD type, pole configuration and branding configuration. Submit your specification for confirmation before formal project use.
FAQ
DC Surge Protective Device Questions
What is the difference between a DC SPD and an AC SPD?
A DC SPD is designed for direct-current circuits, their continuous voltage conditions and required protection paths. A normal AC SPD should not be used as a substitute unless its documentation specifically confirms suitability.
How should I select Ucpv for a solar DC system?
Confirm the maximum PV string open-circuit voltage under project temperature conditions and ensure the selected SPD rating is appropriate for that value and wiring arrangement.
Should I use a 2-pole or 3-pole DC SPD?
The choice depends on protection mode, grounding arrangement and the supplied wiring diagram. Pole count should not be selected only from the number of visible modules.
Can a 1000V DC SPD be used in a 1500V system?
No. Select the correct voltage rating and verify protection mode, Up, pole configuration and document scope.
What information is needed to confirm a DC SPD model?
Send maximum DC voltage, application, installation position, required SPD type, pole configuration, grounding arrangement, backup protection, remote-contact need, quantity and required documents.
Model & Quote Request
Send Your DC System Details for Model Confirmation
Tell LEEYEE the application, maximum DC voltage, required SPD Type, pole configuration and estimated quantity. The information helps us return a more relevant model direction and document response.
Model matching by voltage and application
Datasheet and document-scope review
OEM and distributor requirements supported
Selected product or request
General DC SPD model selection