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1000VDC T2 Surge Protective Device: Robust 40kA Lightning Protection Solution
Key Features and Advantages
The threepole design provides comprehensive protection for positive, negative, and ground conductors in DC systems. The T2 classification confirms the device's capability to handle indirect lightning effects and switching surges according to IEC standards. The 1000VDC rating makes it ideal for highvoltage applications in renewable energy systems and industrial power distribution. The standard discharge current of 20kA ensures consistent performance under normal surge conditions, while the 40kA maximum capacity offers protection against severe electrical transients.
The integrated thermal protection system automatically disconnects the device during overload conditions, enhancing operational safety. A clear visual status indicator allows for immediate condition assessment, while the DIN rail mounting design facilitates easy installation. The screw terminal connections ensure secure wiring and longterm reliability. The red plastic housing provides excellent electrical insulation and environmental resistance.
Application Scenarios
This surge protective device is particularly suitable for largescale photovoltaic systems, where it protects solar inverters and DC distribution equipment. Industrial applications include protection for highvoltage motor drives, control systems, and automation equipment. The device is also effective in electric vehicle charging infrastructure, telecommunications power systems, and data center backup power installations.
Additional applications include railway electrification systems, mining equipment, and marine power systems. The unit can be used in both indoor and sheltered outdoor environments when properly enclosed, providing versatile protection solutions for various electrical systems.
Technical Specifications
Maximum discharge current: 40kA (8/20μs)
Standard discharge current: 20kA (8/20μs)
Type: T2 (Class II)
Rated voltage: 1000VDC
Protection Level: ≤4.0kV
Number of poles: 3P
Housing material: Plastic (UL94 V0 compliant)
Protection mode: Linetoline and linetoground
Response time: <25ns
Operating temperature range:- 45°C to +85°C
Connection method: Screw terminals
Mounting: DIN rail (35mm)
Status indication: Visual indicator
Standards compliance: IEC 61643-11
Protection degree: IP20
Performance Characteristics
The device maintains stable performance characteristics throughout its service life, demonstrating consistent surge protection capability under various operating conditions. The design focuses on reliability and safety, with builtin features that ensure proper operation in highvoltage DC systems. The product meets relevant international standards for surge protective devices, providing assurance of quality and performance for electrical system protection applications.



















