
GSP9-C40PV 600V 1000V DC Surge Protective Device
GSP9-C40PV 600V/1000V DC Surge Protective Device is a high-performance photovoltaic SPD designed to protect DC power systems and solar equipment from lightning surges and transient overvoltages.
Supporting 600V DC and 1000V DC photovoltaic applications, the GSP9-C40PV provides T1+T2 (Class I+II) surge protection with a maximum discharge current of 40kA and fast response time of ≤25ns.
Designed with a pluggable module structure, double thermal disconnection protection, and DIN rail mounting, it delivers reliable and efficient surge protection for PV combiner boxes, solar inverters, and DC distribution systems.
•High PV Voltage Compatibility: Supports 600V DC and 1000V DC photovoltaic systems, providing reliable surge protection for different solar power applications.
•T1+T2 Surge Protection: Combines Class I and Class II surge protection to effectively protect DC systems from lightning impulses and transient overvoltage.
•High Surge Discharge Capacity: Provides 20kA nominal discharge current and 40kA maximum discharge current to handle high-energy surge events.
•Fast Response Performance: With a response time of ≤25ns, the SPD quickly limits dangerous voltage spikes and protects sensitive PV equipment.
•Reliable Thermal Protection: Equipped with double thermal disconnection devices to improve operational safety and provide reliable fault isolation.
•Pluggable Module Design: Features replaceable protection modules for easier maintenance and reduced system downtime.
•PV System Application: Suitable for photovoltaic combiner boxes, solar inverters, DC distribution cabinets, and other renewable energy systems.
•DIN Rail Installation: Supports standard 35mm DIN rail mounting for convenient installation in electrical cabinets.
•Visual Status Indication: Green indicator shows normal operation while red indicates module failure and replacement requirement.
•Optional Remote Alarm Function: Supports remote signaling contacts for real-time monitoring of SPD operating status.
Features
Application
This DC surge protective device is applied low voltage standard IEC/EN 61643-11 to protect against DC power line system and other equipment from over voltage and instantaneous over voltage damage. Widely used in photovoltaic comber box, power inverter, DC distribution cabinet etc. It has advantages of large discharge current, fast respond time, low residual voltage. Max. PV voltage up to UCPV ≤1000V DC.
Main Features
- High discharge capacity, quick response, module pluggable;
- Fast response time, din rail installation;
- Double thermal disconnection devices, provide more reliable protection;
- Green window means normal, red means defect, need to change module;
- Remote alarm terminal optional.
- T1+T2 surge protection.
Dimension Details (Remote terminal optional) Unit: mm

Wiring Diagram (2P&3P)

Technical Parameter
| Model | GSP9-C40PV | ||
| Test standard | IEC/EN 61643-11;GB 18802.11 | ||
| SPD type | T1+T2/I+ IIC | ||
| Max. PV operating voltage(Uc) | 600V DC 1000V DC | ||
| Nominal discharge current(8/20μs) | 20KA | ||
| Max.discharge current(8/20μs) | 40kA | ||
| limp current(10/350μs) | 6.25kA | ||
| Poles | 2P 2P/3P | ||
| Voltage protection level Up PV | ≤2.6kV ≤3.6kV | ||
| Response time Ta | 25ns | ||
| Connection wire specification | 4mm²(L/N);6mm²(PE) | ||
| Mounting | 35mm Din Rail | ||
| Matched fuse or circuit breaker | 32A | ||
| Type of remote signaling contact(Optional) | C+NC:Normally closed C+NO:Normally open C:Common contact | ||
| Max.Voltage/Current for remote signaling | 1A/2A/3A 125V AC | ||
| Wiring for remote signaling | 1.5mm² max. | ||
| Operating temperature | -40°C to +85°C | ||





