China 3P 150VDC T2 40kA Surge Protective Device 20kA SPD for Medium Voltage DC System Protection Manufacturer, Factory

Our 3P 150VDC T2 Surge Protective Device is a highperformance solution specifically engineered to protect medium voltage DC systems against lightning strikes and transient overvoltages. This advanced threepole SPD features a durable plastic housing that provides excellent electrical insulation and mechanical protection while ensuring reliable performance in various environmental conditions. With a maximum discharge capacity of 40kA and nominal discharge current of 20kA, this device offers comprehensive surge protection for sensitive electronic equipment operating in 150VDC applications. Its sophisticated design incorporates stateoftheart protection technology to safeguard critical systems from damaging electrical surges, ensuring operational continuity and equipment longevity in medium voltage DC environments.

Product Description

Key Features and Advantages

Medium Voltage DC Protection: Specifically designed for 150VDC applications, providing complete three-pole protection for sensitive equipment.
High Surge Capacity: Maximum discharge current of 40kA (8/20μs) ensures robust defense against lightning strikes.
Advanced Protection Technology: Utilizes premium metal oxide varistors with ultra-fast response time (<25ns).
Enhanced Safety Features: Integrated thermal disconnect protection and fail-safe operation mechanism.
Visual Status Monitoring: Clear LED indicators provide real-time operational status and end-of-life indication.
Easy Installation: DIN rail mounting with screw terminal connections simplifies maintenance.
Reliable Performance: Maintains stable operation across wide temperature ranges (-45°C to +85°C).
Standards Compliance: Meets international safety standards including IEC 61643-11 and EN 61643-11.

Application Scenarios

Industrial Automation: Protects PLCs, motor drives, and control equipment in manufacturing.
Solar Power: Safeguards solar inverters and monitoring systems in PV installations.
Telecommunications: Provides protection for communication equipment and network devices.
Transportation: Ensures reliability of signaling and control equipment in railway applications.
Building Management: Protects security systems, access control, and automation equipment.
Energy Storage: Protection for battery management systems and DC power distribution.
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Technical Specifications

Maximum Discharge Current
40kA (8/20μs)
Nominal Discharge Current
20kA (8/20μs)
Type Classification
T2 according to IEC 61643-11
Rated Voltage
150V DC
Number of Poles
3P (positive, negative, ground)
Housing Material
High-grade plastic (UL94 V0 rated)
Protection Level
Up ≤ 4.0 kV
Response Time
< 25 nanoseconds
Operating Temperature
-45°C to +85°C
Mounting Method
35mm DIN rail compatible
Status Indication
Visual LED indicator
Connection Capacity
25 mm² maximum
This surge protective device combines advanced technology with reliable performance, providing comprehensive protection for medium voltage DC systems against lightning strikes and transient overvoltages. Its three-pole configuration and robust construction make it an ideal choice for ensuring the safety and longevity of sensitive electronic equipment in various industrial and commercial applications.
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Detailed Pictures

Frequently Asked Questions

Q: What is the maximum voltage this SPD can handle? A: This device is specifically rated for 150V DC applications, making it ideal for medium voltage DC systems and solar power infrastructures.
Q: How do I know if the device has reached its end of life? A: The device features a clear visual LED indicator. When the indicator changes state, it signals that the protection module needs inspection or replacement.
Q: Is it difficult to install in an existing electrical cabinet? A: No, it is designed for standard 35mm DIN rail mounting, which is the industry standard for most industrial and commercial electrical panels.
Q: What is the response speed during a lightning strike? A: The device has an ultra-fast response time of less than 25 nanoseconds, ensuring that voltage spikes are clamped before they can damage sensitive electronics.
Q: Can this device operate in extreme outdoor temperatures? A: Yes, it is engineered to function reliably in environments ranging from -45°C to +85°C, suitable for marine and outdoor solar applications.
Q: What standards does this SPD comply with? A: It meets international safety and performance standards including IEC 61643-11 and EN 61643-11 for Type 2 surge protective devices.

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