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KY-40/G2000 DC Surge Protective Device (Type 2, 2000V)
- The 2000v dc spd KY-40/G2000 provides Type 2 surge protection for ultra-high voltage PV systems.
- Designed for HVDC feeders, utility-scale solar plants, and specialized industrial photovoltaic installations.
- IEC 61643-31 certified, DIN-rail mount, with shared T2 wiring and dimension diagrams.
Overview
The 2000v dc spd KY-40/G2000 is a Type 2 surge protective device designed for
ultra-high voltage photovoltaic systems. It ensures robust surge protection for
PV combiner boxes, inverter DC terminals, and DC feeders in
2000VDC utility-scale plants. This model is widely used in HVDC transmission-based solar projects
and specialized industrial applications where 2000V arrays are deployed. Fully compliant with
IEC 61643-31, CE, UKCA, and RoHS.
Key Features
- 2000v dc spd Type 2 device for ultra-high voltage PV and HVDC feeders.
- Engineered for utility-scale and industrial PV systems operating at 2000VDC.
- High surge handling capability with replaceable cartridges and visible status indicators.
- Optional NO/NC alarm contacts support remote monitoring across large plants.
- Part of the KY T2 surge protection series, ensuring compatibility with fuses and disconnectors.
Specifications
| Type | Type 2 (T2) |
|---|---|
| System Voltage (Ucpv) | 2000 V DC |
| Nominal Discharge Current (In) | 20 kA |
| Maximum Discharge Current (Imax) | 40 kA |
| Voltage Protection Level (Up) | ≤ 6.0 kV |
| Response Time (ta) | < 25 ns |
| PV Short-Circuit Withstand (Iscpv) | 20 kA |
| Protection Mode / Topology | U Type |
| Alarm Contact (optional) | 220V, 0.5A, NO/NC |
| Recommended Upstream Fuse | LS7-50k (per datasheet) |
| Wiring / Terminals | 6–35 mm² screw terminals |
| Mounting | 35 mm DIN rail |
| Enclosure / Flammability | Plastic housing, UL94-V0 |
| Operating Conditions | -40℃ ~ +70℃; ≤95% RH |
| Dimensions (W×H×D) | 36 × 83 × 67 mm |
| Standards & Compliance | IEC 61643-31:2018, GB/T 18802.31, CE, UKCA, RoHS |
Wiring & Dimension
Applications
- Utility-scale PV plants with 2000VDC arrays and central inverters.
- High-voltage DC feeders in HVDC-based solar projects.
- Special industrial photovoltaic installations requiring ultra-high voltage SPD protection.
FAQs
Q1. Why is a 2000v dc spd necessary in PV systems?
As PV systems evolve towards ultra-high voltage arrays, a 2000V SPD ensures equipment protection and compliance with international standards.
Q2. What are the main applications of KY-40/G2000?
It is widely used in utility-scale solar farms, HVDC feeders, and specialized industrial PV systems with 2000V strings.
Q3. Can KY-40/G2000 work with monitoring systems?
Yes. The optional NO/NC alarm contacts allow remote monitoring and integration with SCADA in large solar farms.
Q4. Which certifications does KY-40/G2000 meet?
IEC 61643-31, GB/T 18802.31, CE, UKCA, and RoHS certifications are included.
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