Photovoltaic Accessories
1000VDC-20KA Surge Protector for Photovoltaic Systems – China Suppliers & Factory Quality Assurance
Introducing our advanced 1000VDC-20KA surge protector, meticulously engineered for photovoltaic and energy storage systems. This robust device features a modular design, ensuring ease of installation and maintenance. With an impressive current capacity of 40kA and built-in thermal fuse protection, it guarantees the safety and reliability of your systems. Its rapid response time of ≤25ns effectively safeguards against voltage spikes, making it an essential component for any energy management strategy. As a trusted China supplier and factory, we are committed to delivering high-quality surge protection solutions tailored to meet the demands of the modern energy landscape
⚡ Product Characteristics
The product adopts a unique two-stage structural design, consisting of a base and a pluggable protection module. This modular design greatly enhances the flexibility and maintainability of the product. When the protection module fails or needs to be upgraded, there is no need to replace the whole device, just unplug the old module and plug in the new one, which effectively reduces the maintenance cost and downtime.
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Modular Plug-in Design
Replace only the protection module — no need to swap the entire device. Reduces downtime and maintenance costs.
Replace only the protection module — no need to swap the entire device. Reduces downtime and maintenance costs.
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Hybrid MOV + GDT Unit
Metal oxide varistor (MOV) and gas discharge tube (GDT) work in tandem for comprehensive overvoltage protection.
Metal oxide varistor (MOV) and gas discharge tube (GDT) work in tandem for comprehensive overvoltage protection.
It integrates a hybrid unit of high-energy metal oxide varistor (MOV) and gas discharge tube (GDT). MOV can respond to overvoltage instantaneously, quickly absorbing and discharging the energy, while GDT conducts reliably under high-current shocks, complementing each other’s strengths to provide more comprehensive and efficient overvoltage protection.
🔬 Advantage of Working Principle
The product is equipped with a reliable release device, which can monitor the working status of the protection module in real time. Once overload, short circuit and other abnormal conditions are detected, the disconnecting device will act quickly to cut off the circuit and prevent further expansion of the fault, providing a double guarantee for the safety of equipment and personnel.
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Nanosecond Response Time (≤25ns) — Reacts to overvoltage in nanoseconds, minimizing damage to connected equipment. Red fault indicator in observation window enables rapid visual diagnosis without complex testing.
Nanosecond Response Time (≤25ns) — Reacts to overvoltage in nanoseconds, minimizing damage to connected equipment. Red fault indicator in observation window enables rapid visual diagnosis without complex testing.
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Visual Fault Indicator
Red indication mark in observation window allows maintenance personnel to quickly locate faults without complex testing.
Red indication mark in observation window allows maintenance personnel to quickly locate faults without complex testing.
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Optional Remote Alarm Terminal
Supports remote monitoring and fault warning for enhanced system management and rapid response.
Supports remote monitoring and fault warning for enhanced system management and rapid response.
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Auto Circuit Disconnection
Immediately cuts off the circuit upon detecting overload or short circuit conditions to prevent fault escalation.
Immediately cuts off the circuit upon detecting overload or short circuit conditions to prevent fault escalation.
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Thermal Fuse Protection
Built-in temperature monitoring automatically triggers thermal fuse protection when component temperature exceeds 85°C.
Built-in temperature monitoring automatically triggers thermal fuse protection when component temperature exceeds 85°C.
📋 Product Overview
This DC lightning arrester was developed for the specialized operating conditions of renewable energy power systems. Its core parameters include a rated operating voltage of 1000VDC, a nominal discharge current of 20kA (8/20μs waveform), and a maximum discharge capacity of 40kA. It innovatively utilizes a modular design with Kevin wiring and a built-in temperature monitoring system, automatically triggering thermal fuse protection when the component temperature exceeds 85°C.
Its nanosecond response characteristics (≤25ns) effectively suppress lightning-induced overvoltage and switching overvoltage, with a protection level of Up≤2.5kV. Equipped with a mechanical fault indicator window (red alert), the product boasts an IP65 protection rating, an operating temperature range of -40°C to +80°C, and is TUV/IEC61643-31 certified. It is suitable for DC-side surge protection in equipment such as photovoltaic arrays and energy storage converters.
✅ TUV Certified
✅ IEC61643-31
🌧️ IP65 Rated
🌡️ -40°C to +80°C
⚡ Up ≤ 2.5kV
⏱️ Response ≤ 25ns
✅ IEC61643-31
🌧️ IP65 Rated
🌡️ -40°C to +80°C
⚡ Up ≤ 2.5kV
⏱️ Response ≤ 25ns
🏭 Application Scenarios
With excellent performance, this product is widely used in communication base stations, data centers, industrial control systems and other areas that require high power supply quality and equipment safety, to protect the stable operation of various types of key equipment.
📐 Technical Specifications
| Parameter | Value |
|---|---|
| TYPE | PMD40-1000/3 |
| Max. Continuous Operating Voltage (DC) | 1000V |
| Nominal Discharge Current (8/20μs) In | 20kA |
| Max. Discharge Current (8/20μs) Imax | 40kA |
| Voltage Protection Level Up (8/20μs) | ≤2500V |
| Conductor Sectional | ≥10mm² |
| Dimension | 90 × 64 × 54 mm |
| Working Conditions | Temperature −40 ~ +85°C, Relative Humidity (RH) ≤95% (25°C) |
❓ Frequently Asked Questions
💡 What is the maximum discharge current of the PMD40-1000/3 DC lightning arrester?
The PMD40-1000/3 has a maximum discharge current (Imax) of 40kA (8/20μs waveform), with a nominal discharge current (In) of 20kA. This makes it suitable for high-energy surge events in renewable energy and industrial environments.
💡 What is the benefit of the modular plug-in design?
The modular design allows maintenance personnel to simply unplug the failed protection module and replace it with a new one — without replacing the entire device. This significantly reduces downtime and maintenance costs, especially in critical systems like data centers or photovoltaic arrays.
💡 Is this product suitable for outdoor installation in harsh environments?
Yes. The product carries an IP65 protection rating, meaning it is fully dust-tight and protected against water jets. Its operating temperature range of -40°C to +80°C and humidity tolerance up to 95% RH make it well-suited for outdoor and harsh industrial environments.
💡 How does the thermal fuse protection mechanism work?
The built-in temperature monitoring system continuously tracks component temperature. When the temperature exceeds 85°C, the thermal fuse protection is automatically triggered, disconnecting the circuit to prevent thermal runaway and protect both the device and connected equipment from heat-related damage.
💡 What certifications does the PMD40-1000/3 hold?
The PMD40-1000/3 is certified to TUV and IEC61643-31 standards, which are internationally recognized certifications for DC surge protective devices used in photovoltaic and renewable energy power systems.
💡 Can I monitor the fault status of the device remotely?
Yes. The product supports an optional remote alarm terminal that enables remote monitoring and fault warning. In addition, a mechanical red fault indicator window provides instant visual diagnosis on-site, allowing maintenance teams to identify issues quickly without requiring specialized test equipment.
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