منطقة ونغ يانغ الصناعية يويتشينغ ونتشو 325000
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Choose the Right DC SPD
KY-15T/G1000 — Type 1+2
DC SPD 1000V
المواصفات والأسلاك
KY-15T/G1500 — Type 1+2
DC SPD 1500V
المواصفات والأسلاك
KY-40/G600 — Type 2
DC SPD 600V
المواصفات والأسلاك
KY-40/G1000 — Type 2
DC SPD 1000V
المواصفات والأسلاك
KY-40/G1500 — Type 2
DC SPD 1500V
المواصفات والأسلاك
KY-40/G2000 — Type 2
DC SPD 2000V
المواصفات والأسلاك
SPD Installation Topologies
DC SPD placement varies with voltage, distance, and lightning risk. These cards illustrate how to apply solar DC SPD و PV DC SPD for safe, reliable protection.
Type 1+2 at Inverter Input
- Voltage: 1000V / 1500V
- Best for: Utility-scale PV, wind turbine converters
- Handles direct lightning + switching surges
- Use T1+T2 SPD kit for full protection
Type 2 in Array Box
- Voltage: 600V / 1000V
- Best for: Rooftops, ESS cabinets
- Protects against induced surges on DC strings
- Combine with DC fuse for best reliability
Remote SPD Near Module
- Voltage: 600V / 1000V
- الأفضل لـ الأسطح المعرضة للصواعق
- Short lead length improves response time
- Optional redundancy with dual SPDs
ESS & EV Cabinets
- Voltage: 1000V / 1500V / 2000V
- Best for: Battery energy storage, EV charging
- Continuous protection against switching surges
- Supports high-current DC busbars
التأريض والقطبية
- Strings: Any voltage level
- Correct +/- polarity & common PE bar
- Critical bonding for SPD performance
- Follow IEC practices for wiring length
Service & Maintenance
- Replaceable module design with status indicator
- Thermal disconnector integrity checks
- Inspection cycle: every 1–2 years
- Record surge events where applicable
What is a DC SPD?
A DC Surge Protective Device (DC SPD) limits transient overvoltages caused by lightning or switching, protecting PV arrays, inverters, wind turbine converters, ESS cabinets and DC panels. Select the proper class (Type 1 / Type 2 / Type 1+2) and voltage (600–2000 V DC).
ما أهمية ذلك
- Prevents insulation breakdown and inverter faults from lightning-induced surges.
- Improves uptime for صناديق التجميع الكهروضوئية, inverters and ESS systems.
- Complements overcurrent devices like the DC fuse (gPV).
What’s Inside
- MOV-based modules for النوع 2 energy absorption.
- Spark-gap or combined stages for Type 1 / Type 1+2 high-energy discharge.
- Thermal disconnector + status indicator; replaceable cartridge design.
Where It’s Used
- PV strings, array boxes and inverter DC inputs (solar DC SPD / PV DC SPD).
- Wind turbine nacelle, converter cabinets and tower base panels.
- Energy storage (ESS) and EV charging DC busbars (up to 2000 V DC).
Install & Service
- DIN-rail mounting; keep leads short and symmetrical to PE.
- Coordinate with a مفتاح فصل التيار المستمر for isolation.
- Plan inspections every 1–2 years; replace modules when indicator shows end-of-life.
Compatibility & Selection
- Voltage classes: 600 / 1000 / 1500 / 2000 V DC.
- Classes: النوع 1 (direct lightning), النوع 2 (induced/switching), النوع 1+2 (combined).
- Use correct polarity (+/–) and common PE bar; see wiring / connection diagrams below.
Standards & References
- متوافق مع IEC 61643-31.
- Integrates with enclosures such as IP65/IP66 waterproof boxes.
- Industry guidance from SEIA.
Technical Specs Overview
Quick comparison of Kuangya DC SPD product line by type, voltage class, surge rating and installation.
| الطراز | النوع | Voltage Class | Nominal Discharge (In) | Max Discharge (Imax) | المعايير | التركيب |
|---|---|---|---|---|---|---|
| KY-15T/G1000 | النوع 1+2 | 1000 V DC | 15 kA | 40 كيلو أمبير | IEC 61643-31 | DIN Rail, replaceable module |
| KY-15T/G1500 | النوع 1+2 | 1500 V DC | 15 kA | 40 كيلو أمبير | IEC 61643-31 | DIN Rail, replaceable module |
| KY-40/G600 | النوع 2 | 600 V DC | 20 كيلو أمبير | 40 كيلو أمبير | IEC 61643-31 / UL 1449 | DIN Rail, replaceable module |
| KY-40/G1000 | النوع 2 | 1000 V DC | 20 كيلو أمبير | 40 كيلو أمبير | IEC 61643-31 / UL 1449 | DIN Rail, replaceable module |
| KY-40/G1500 | النوع 2 | 1500 V DC | 20 كيلو أمبير | 40 كيلو أمبير | IEC 61643-31 | DIN Rail, replaceable module |
| KY-40/G2000 | النوع 2 | 2000 V DC | 20 كيلو أمبير | 40 كيلو أمبير | IEC 61643-31 | DIN Rail, replaceable module |
For detailed datasheets and wiring diagrams, please refer to the product pages listed above.
التطبيقات وحالات الاستخدام
Typical scenarios for solar DC SPD / PV DC SPD: Rooftop PV, C&I, Utility, Wind, ESS and EV charging.
الأسطح السكنية
PV strings • Inverter input • Type 2
انظر النماذجالأسطح التجارية
Array boxes • Long DC runs • Type 2
انظر النماذجUtility Ground-Mount PV
Inverter input • 1000/1500V • Type 1+2
انظر النماذجWind Power
Nacelle & converter cabinets • Type 1+2
انظر النماذجتخزين الطاقة (ESS)
Battery cabinets • 1000–2000V • Type 2
انظر النماذجEV Charging
DC busbars • Switchgear • Type 2
انظر النماذجإرشادات التطبيق
Select the right DC SPD class and voltage by scenario. Match with wiring length and lightning risk for best performance.
Residential & Small Rooftop
- Voltage: 600V / 1000V
- موصى به: النوع 2 DC SPD at inverter input
- Keep leads short & bond to common PE
Commercial & Industrial PV
- Voltage: 1000V
- Array box & inverter: النوع 2 DC SPD
- Parallel MPPTs benefit from distributed SPDs
Utility PV & Wind Power
- Voltage: 1000 فولت / 1500 فولت
- مدخلات العاكس: النوع 1+2 DC SPD
- Coordinate Type 2 in array boxes for staged protection
ESS & EV Charging
- Voltage: 1500V / 2000V
- Cabinets & DC busbars: النوع 2 DC SPD
- Use symmetric, short leads; verify thermal disconnect
Why Choose Kuangya for DC SPD
Factory-built quality, complete voltage range, and reliable protection aligned with IEC 61643-31.
المصنع مباشرة
In-house R&D and manufacturing ensure consistent performance and fast response.
- Stable supply & traceable QA
- Engineering support for projects
Complete Range
600–2000V DC coverage with Type 1, Type 2 and Type 1+2 options for PV, wind and ESS.
- KY-15T/G (T1+T2), KY-40/G (T2)
- 1000V / 1500V utility-class ready
Reliable Build
Thermal disconnector and status indicator, replaceable modules for quick service.
- Coordination with fuses and switches
- Robust terminals & PE bonding
مهلة زمنية سريعة
Stocked configurations and agile production to meet project schedules.
- Global shipping options
- Stable replenishment cycle
OEM / ODM
Label, housing and rating customization to fit local codes and branding.
- Custom kits (T1+T2) and voltages
- Documentation & drawings support
الأسئلة الشائعة
What is the difference between Type 1, Type 2, and Type 1+2 devices?
النوع 1 surge arrestors handle lightning currents at service entrances;
النوع 2 protective devices absorb switching/induced surges inside PV/ESS systems;
النوع 1+2 combines both for inverter inputs or wind nacelles. These categories apply to Kuangya DC SPDs.
See our overview at /dc-spd.
How do I choose the right voltage class (600 / 1000 / 1500 / 2000 V)? What about 500 / 660 / 690 V?
Select a photovoltaic surge protector rated for the highest DC bus (Voc × temperature factor). Rooftop arrays: 600–1000 V; utility PV: 1500 V;
ESS/EV: up to 2000 V. Industrial DC buses often run at 500/660/690 V and typically use Type 2 modules.
How is a wiring diagram applied in solar arrays?
Place النوع 2 modules in combiner boxes and النوع 1+2 units at inverter inputs. Keep leads short, paired, and bonded to PE.
For a dc spd wiring diagram example, see the guide at /dc-spd.
IEC 61643-31 vs UL 1449 — which should I follow?
IEC 61643-31 is common in EU/international PV and industrial DC projects; UL 1449 is widely used in North America.
Cross-region deployments can specify units tested to both standards.
How to coordinate surge protection with fuses and switches?
الاستخدام صمامات gPVV within the device’s maximum upstream protection rating and add
فواصل التيار المستمر أو قواطع التيار المستمر for isolation.
Ensure the fuse’s current rating meets short-circuit withstand requirements.
What is the recommended lead length and placement? Can I add units near the module?
Keep the total path as short as possible. Typical practice: Type 2 in the array box, Type 1+2 at the inverter.
Near-module protectors are optional for long cable runs or lightning-prone regions; ensure service access and proper enclosure rating.
When should I replace a surge module?
Replace if the status window turns red, a thermal disconnect operates, or after a major surge event.
Kuangya units use replaceable cartridges; after replacement, record the date and re-check torque/grounding.
Can these devices be used in ESS, EV charging, and wind turbines (nacelle, yaw, pitch, converter cabinets)?
Yes. ESS/EV DC busbars typically use 1000–2000 V Type 2 modules; wind turbine nacelle, yaw/pitch systems and converter cabinets often place Type 1+2 at the DC bus,
coordinated with downstream Type 2.
What about IP rating, temperature and maintenance interval?
DIN-rail modules rely on the enclosure’s IP grade; outdoor installations require weatherproof housings.
Follow datasheet temperature limits and inspect every 6–12 months: terminal torque, PE bonding, and status indicators.
PDF Resources
Download Our Full كتالوج المنتجات
Get comprehensive details on our DC SPD and Fuse products. The catalog includes detailed technical specifications, installation guidelines, dimension drawings, and selection charts.
Download Catalog (PDF)
File size: ~5MB. Updated: March 2026.
كوانجيا
Surge Protective
Devices & Fuses
Product Catalog 2026