40kA DC Solar SPD | Westhomes WCU8-PV-40 600V Surge Arrester
Shield your household solar system with Westhomes WCU8-PV-40 DC SPD! 40kA surge protection, 600V/1000V compatibility, DIN rail mount & robust safety for low-voltage solar setups.
Get quick appointment for technical support!
40kA DC Solar SPD
Shield your household solar system with Westhomes WCU8-PV-40 DC SPD! 40kA surge protection, 600V/1000V compatibility, DIN rail mount & robust safety for low-voltage solar setups.
Westhomes WCU8-PV-40 DC SPD: 40kA surge protection for household solar systems. 600V/1000V compatible, DIN rail mounted, and built for long-lasting safety in low-voltage solar setups.
Key Features：
Seamless Module Replacement: SPD modules and bases can be replaced separately for easy maintenance and cost efficiency.
Certified Safety: Complies with IEC61643-31 standard and CE certification, with 34S MOV technology for reliable overvoltage protection.
Visual Status Indicator: Built-in indicator for real-time monitoring of SPD operational status.
Robust Durability: High breaking capacity and weather-resistant construction for long-term performance in solar applications.
Applications:
Off-Grid Solar Power Systems
Small-Scale Commercial Solar Setups
Rooftop Solar Panel Arrays
Main Technical Parameters
| Model | Rated Voltage(Uo) | Maximum sustained voltageUc(V) | Protection levelUP(KV) | Maximum Current Imax(ka) | Nominal Discharge Current In(ka) | Response Time Ns | TEMP℃ |
| WCU8-D/10 | 230V/400V | 385 | 0.7/10 | 10 | 5 | <25 | -40~+80℃ |
| WCU8-D/20 | 1.5 | 20 | 10 | ||||
| WCU8-C/30 | 2.0 | 30 | 15 | ||||
| WCU8-C/40 | 2.0 | 40 | 20 | ||||
| WCU8-B/60 | 2.3 | 60 | 30 | ||||
| WCU8-B/80 | 3.3 | 80 | 40 | ||||
| WCU8-B/100 | 3.3 | 100 | 60 | ||||
| N-PE | 275/320 | 1.0/1.5 | 20/40/60 | <100 |
Packaging and delivery
| Selling Units | Single item |
Lead time
| Quantity (pieces) | 1 – 1,000 | > 1,000 |
| Lead time (days) | 30 | To be negotiated |
Key attributes
| Max Discharge Current | 40 kA |
| Application | Electronic Equipment, Industrial, Lightning Protection, Power System, Solar System |
| Model Number | WCU8-PV-40 |
| Brand Name | Westhomes |
| Type | T2 |
| Material | Plastic |
| Place of Origin | Zhejiang, China |
Related: Surge Protector Devices & Their Role in Electrical Safety, which covers surge protector step by step.
155 MBFREQUENTLY ASKED QUESTION (FAQ)
What is a 40kA DC Solar SPD?
A 40kA DC Solar SPD (Surge Protective Device) is designed to protect photovoltaic (PV) systems and DC electrical equipment from transient overvoltages caused by lightning strikes, switching operations, and other electrical disturbances. It helps divert surge energy safely to the ground and reduces the risk of damage to solar system components.
What does 40kA mean in a DC Solar SPD?
40kA refers to the maximum discharge current capability of the surge protection device. It indicates the SPD can withstand and safely discharge surge currents up to 40kA under specified test conditions, providing effective protection against transient surges.
Why is a DC SPD important for solar PV systems?
Solar PV systems contain sensitive components such as solar panels, inverters, and monitoring equipment that can be affected by lightning-induced surges and voltage spikes. A DC SPD helps protect these components by limiting transient overvoltage and improving system reliability.
What applications are suitable for a 40kA DC Solar SPD?
A 40kA DC Solar SPD is suitable for photovoltaic systems, solar power stations, DC distribution systems, battery energy storage systems, and other DC applications requiring surge protection.
What is the difference between an AC SPD and a DC Solar SPD?
An AC SPD is designed for alternating current systems, while a DC Solar SPD is specifically designed for direct current applications such as photovoltaic systems. DC SPDs have different voltage ratings and internal designs to safely handle continuous DC voltage conditions.
Where should a DC Solar SPD be installed in a PV system?
A DC Solar SPD is typically installed on the DC side of a photovoltaic system, such as between solar panels and the inverter, or inside a PV combiner box. The installation location depends on the system design and required protection level.
Can a 40kA DC Solar SPD protect solar inverters?
Yes. A properly selected and installed 40kA DC Solar SPD can help protect solar inverters from transient overvoltages caused by lightning and switching events, reducing the risk of equipment failure and downtime.
What is the difference between Type 1, Type 2, and Type 1+Type 2 Solar SPD?
Type 1 Solar SPD is designed to handle high-energy lightning impulse currents and is typically used where direct lightning current protection is required. Type 2 Solar SPD protects against induced surges and switching overvoltages. Type 1+Type 2 SPD combines both functions for applications requiring higher protection levels.
How does a 40kA DC Solar SPD work?
A 40kA DC Solar SPD works by detecting transient voltage surges and providing a low-resistance path to discharge excessive surge energy safely. It limits the voltage reaching connected equipment and helps protect the PV system from surge-related damage.
Why choose a Westhomes 40kA DC Solar SPD?
The Westhomes 40kA DC Solar SPD provides reliable surge protection for photovoltaic and DC power applications. With strong discharge capability, compact design, and compatibility with solar systems, it helps improve the safety and long-term stability of renewable energy installations.
RELATED PROJECTS
REQUEST
YOUR FREE QUOTE
* indicates a required field
