SPD / DC SPD
DC 2P SPD
TPKELE DC 2P SPD is a compact two-pole surge protective device engineered for space-constrained solar PV installations. Designed specifically for DC combiner boxes and string-level protection, it delivers Type 2 surge protection in a minimal footprint — reducing DIN rail occupation by 33% compared to 3P/4P models while maintaining full IEC 61643-31 compliance. The pluggable cartridge design enables fast field replacement without rewiring, and the dual visual status windows provide instant operational feedback. Ideal for residential rooftop systems, commercial C&I projects, and any PV application where panel real estate is at a premium.
Key Features
- 2-pole (DC+/DC−) configuration for compact installations
- Ucpv 1000V DC — suits most residential and C&I PV systems
- In 20kA / Imax 40kA (8/20μs) — Type 2 protection level
- Pluggable cartridge module for tool-free replacement
- Dual visual status indicators (green = OK, red = replace)
Need full datasheet, drawing or certificates for tender?
Typical Applications
Technical Specifications
| Product Type | 2-Pole DC Surge Protective Device (Type 2) |
|---|---|
| Model | DC 2P SPD |
| Pole Configuration | 2P (DC+ / DC−) |
| Max. Continuous Operating Voltage (Ucpv) | 1000V DC |
| Nominal Discharge Current (In) | 20kA (8/20μs) |
| Max. Discharge Current (Imax) | 40kA (8/20μs) |
| Voltage Protection Level (Up) | ≤3.5kV |
| Response Time | <25ns |
| Protection Type | Type 2 (IEC 61643-31) |
| Status Indication | Dual visual window (Green = Normal / Red = Fault) |
| Cartridge Type | Pluggable, tool-free replacement |
| Mounting | 35mm DIN rail (IEC/EN 60715) |
| Width | 36mm (2 modules) |
| Connection | Screw terminal, 4–16mm² cable capacity |
| Torque | 1.2–1.5 N·m |
| Protection Degree | IP20 (when mounted) |
| Operating Temperature | −40°C to +85°C |
| Housing Material | Flame-retardant thermoplastic, UL94 V-0 |
| Standards Compliance | IEC 61643-31, EN 61643-31 |
| Certifications | CE, RoHS |
| Applications | PV combiner boxes, string-level DC surge protection, residential & C&I solar |
Certifications & Standards
Verified to international standards for global tenders
OEM / ODM Available
Private label this SPD for your brand
Logo, color housing, packaging and certificate documentation tailored to distributor and brand-owner programs.
- Custom logo printing on housing and packaging
- Color housing variants for product line differentiation
- Private-label catalogs and datasheet customization
- Project-spec drawings, single-line diagrams and labels
- Container-load supply with export documentation
- Sample preparation within 5–10 working days
Frequently Asked Questions
Which SPD type do I need for a solar PV project?
PV strings, combiner boxes and inverter DC inputs require DC SPDs sized to the system Uoc (600V / 1000V / 1500V). Inverter AC outputs and the building distribution board use AC SPDs (Type 2 standard, Type 1+2 if direct lightning exposure is possible).
What is the difference between Type 1, Type 2 and Type 1+2?
Type 1 (10/350μs waveform) protects against direct lightning strike currents at the building entrance. Type 2 (8/20μs) protects against induced surges downstream. Type 1+2 combines both — used at the main distribution board when a lightning protection system is present.
What does Imax / In mean on an SPD?
In = nominal discharge current (8/20μs) the SPD can pass repeatedly. Imax = maximum one-shot discharge current the SPD can handle once and remain functional. Choose In/Imax based on lightning exposure and project specs.
Are TPKELE SPDs CE certified?
Yes — all SPDs comply with CE, RoHS and IEC 61643-11 (AC) / IEC 61643-31 (DC PV). Test reports are available for project files and tenders.
Do you offer SPDs with remote signaling output?
Yes, selected models include a remote signaling contact (NO/NC) so you can monitor SPD health from a central control system or BMS.
