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3P 500VDC T2 40kA Surge Protective Device 20kA SPD for Medium Voltage DC System Protection
Key Features and Advantages
• Medium Voltage DC Protection: Specifically engineered for 500VDC applications, providing complete threepole protection for critical equipment
• High Surge Capacity: Maximum discharge current of 40kA (8/20μs) ensures robust defense against direct and indirect lightning strikes
• Advanced Protection Technology: Utilizes premium metal oxide varistors with ultrafast response time (<25ns) for optimal voltage clamping performance
• Enhanced Safety Mechanisms: Integrated thermal disconnect protection and failsafe operation system prevent catastrophic failures
• Visual Status Monitoring: Clear LED indicators provide realtime operational status and endoflife indication
• Easy Installation: DIN rail mounting with screw terminal connections simplifies installation process
• Wide Temperature Operation: Maintains stable performance across - 45°C to +85°C temperature range
• International Standards Compliance: Meets IEC 6164311 and EN 6164311 safety standards
Application Scenarios
Industrial Automation Systems: Protects PLCs, motor drives, and control equipment in manufacturing facilities
Solar Power Applications: Safeguards solar inverters and monitoring systems in largescale photovoltaic installations
Telecommunications Infrastructure: Provides protection for communication equipment and network devices in data centers
Transportation Systems: Ensures reliability of signaling and control equipment in railway applications
Building Management Systems: Protects security systems, access control devices, and automation equipment
Marine and Offshore Applications: Suitable for marine electronics and navigation systems
Energy Storage Systems: Provides protection for battery management systems and DC power distribution networks
Technical Specifications
Maximum Discharge Current: 40kA (8/20μs)
Nominal Discharge Current: 20kA (8/20μs)
Protection level: Up ≤ 4.0 kV
Rated Voltage: 500VDC
Protection Level: T2 (Class II)
Number of Poles: 3P
Housing Material: FlameRetardant Plastic (UL94 V0)
Response Time: <25 nanoseconds
Operating Temperature Range:- 45°C to +85°C
Protection Mode: L+/L/PE
Connection Type: Screw terminal
Mounting: DIN Rail (35mm)
Standards Compliance: IEC 6164311, EN 6164311
This surge protective device combines cuttingedge technology with reliable performance, delivering comprehensive protection for medium voltage DC systems against lightninginduced surges and transient overvoltages. Its threepole configuration, exceptional protective characteristics, and robust construction make it an ideal solution for ensuring the safety and longevity of sensitive electronic equipment in various industrial and commercial applications. The device meets international standards and offers peace of mind through its proven performance in demanding electrical environments.
