The Furse ESP PV, ESP WT, and ESP DC series extend dedicated surge protection to photovoltaic arrays, wind turbines, and industrial DC power networks up to 1000 VDC. These DIN rail-mounted devices protect sensitive renewable energy infrastructure against direct and indirect lightning surges while maintaining operational continuity.
Modern photovoltaic systems and industrial DC grids face unique transient overvoltage challenges driven by long cable runs and exposed outdoor arrays. Induced surges from nearby lightning strikes can propagate through DC cabling, damaging string inverters, charge controllers, and monitoring hardware. The ESP PV, ESP WT, and ESP DC series utilize high-energy metal-oxide varistor technology paired with specialized thermal disconnect mechanisms to safely shunt high-energy transients to earth. Designed for seamless integration within distribution boards and inverter cabinets, these devices conform to strict industry standards for renewable energy installations.
Technical Specifications
Series: ESP PV
Application: Photovoltaic systems and solar arrays
Maximum Continuous Operating Voltage: 1000 VDC @ Photovoltaic systems
Mounting Type: DIN rail mounted @ Enclosure installation
Operating Temperature Range: -40 °C - +80 °C
Compliance Standard: BS EN 62305 @ Lightning protection
Series: ESP WT
Application: Wind turbines and generator systems
Rated Voltage: 690 V @ AC wind turbine distribution
Mounting Type: DIN rail mounted @ Control cabinet
Operating Temperature Range: -40 °C - +80 °C
Compliance Standard: BS EN 62305 @ Lightning protection
Series: ESP DC
Application: Industrial DC power systems and storage
Rated Voltage: 48 VDC @ Low voltage DC networks
Mounting Type: DIN rail mounted @ Standard rail
Operating Temperature Range: -40 °C - +80 °C
Compliance Standard: BS EN 62305 @ Lightning protection
System Integration and Hardware Setup
Proper mechanical and electrical installation is critical for the effective performance of the ESP PV, ESP WT, and ESP DC surge protection devices. All units feature a compact DIN rail footprint, allowing straightforward physical integration into existing distribution boards, inverter internal enclosures, or combiner boxes. Panel builders must ensure that the mounting rail is securely connected to the main system earth bar to establish a low-impedance reference path.
Lead lengths between the main DC busbars and the SPD connection terminals must be kept as short as possible, ideally under 0.5 meters, to minimize inductive voltage drops during high-current transient discharge events. Conductors utilized for input and earth connections should possess adequate cross-sectional area to handle maximum expected fault currents safely. Cross-reference wiring diagrams provided in the technical documentation to verify correct polarity and terminal torque specifications before energizing the protected DC network.
Reliability and Environmental Durability
Designed for harsh industrial and outdoor renewable energy environments, the Furse ESP protection concept delivers consistent operational reliability across extreme thermal ranges. Operating reliably from -40 °C to +80 °C, these modules withstand the rigorous ambient conditions typical of rooftop solar arrays, desert solar farms, and offshore or onshore wind turbine nacelles. The robust housing materials resist environmental degradation and mechanical shock associated with heavy industrial machinery.
Internal thermal disconnection mechanisms provide passive fail-safe protection by isolating degraded components from the live circuit if end-of-life conditions are reached due to severe, repeated transient activity. Visual status indicators on the module faceplate offer immediate local verification of protection status, facilitating routine maintenance inspections. This internal engineering ensures long service life and predictable performance without requiring active electronic monitoring subsystems.
Selection Guidance and Alternative Options
Selecting the correct surge protection device requires careful evaluation of the specific DC system voltage, maximum open-circuit voltage parameters, and the lightning protection zone boundaries defined by BS EN 62305. The ESP PV variant is engineered specifically for photovoltaic installations operating up to 1000 VDC. For wind turbine generator setups requiring higher voltage handling, the ESP WT model is rated for 690V systems. Lower voltage industrial control architectures and 48V DC power distribution buses utilize the dedicated ESP DC series.
When evaluating cross-references or replacing legacy hardware, technical teams can consult Beijing Zhongping Technology for expert application guidance and readily available original component inventory. The regional engineering support team assists integration specialists in mapping system electrical parameters to the appropriate sub-series, ensuring full compliance with project specifications and minimizing procurement lead times for critical infrastructure upgrades.
Frequently Asked Questions (FAQ)
1. What is the maximum system voltage supported by the Furse ESP PV series?
The ESP PV series supports photovoltaic and solar panel installations with operating voltages up to 1000 VDC.
2. Can the ESP WT series be utilized in wind turbine nacelle installations?
Yes, the ESP WT model is specifically rated for 690V applications in wind turbines and associated generator control cabinets.
3. What is the standard mounting method for the ESP DC, ESP PV, and ESP WT modules?
All units across these series are designed for convenient, standard DIN rail mounting inside electrical enclosures.
4. What ambient temperature range do these surge protection devices tolerate?
The devices operate reliably across a wide ambient temperature range from -40 °C to +80 °C.
5. Which lightning protection standard do these units comply with?
They form part of a complete lightning protection solution compliant with BS EN 62305 for renewable energy applications.
6. How does the internal thermal disconnect mechanism function?
The internal thermal disconnect safely isolates the device from the circuit if internal components degrade due to excessive cumulative surge exposure.
7. What is the target application for the ESP DC variant?
The ESP DC variant is engineered to cover low-voltage industrial DC power systems up to 48V.
8. Where can engineers source replacement units or verify cross-reference selections?
Engineering support and local stock access for these original components can be coordinated through Beijing Zhongping Technology.
FAQ
1.Who are We?
Beijing Zhongping Technology Co., LTD., is a global industrial electrical automation service provider, is a scientific research, design, marketing, technical services, industrial Internet, international import and export services as one of the science and technology companies.
2.What can you buy from us?
PLC, inverter, human-machine interface, hydraulic products, low-voltage power distribution, industrial robots and core components
3.Is the item in stock or need to be purchased from another supplier?
We have a large inventory of goods and have our own warehouse.
4.What advantages do we have over other suppliers?
Our company has a large amount of inventory and a number of warehouses, but also in the country's important industrial provinces and cities with offices and a number of overseas service points. To provide you with intelligent manufacturing one-stop comprehensive services, save efforts, labor and cost.
5.Can you provide 100% new original authentic products?
We only sell new original genuine, no renovation, no fake, only for the original factory original!
6.How long is the delivery time?
If there is a stock, it will take 2-3 working days to ship, if the quantity is large, it will take 5-7 working days after receiving the payment, if it is not a conventional model, it will take some time, we will inform you of the specific delivery time.
7.Is there technical support available?
Of course, we have a professional technical team that can help you solve technical problems.
8.How do we guarantee quality?
We have three processes to control the quality of goods.
1) Our engineers will inspect the production and quality control in the factory regularly.
2) Incoming materials shall be inspected by experienced purchasing engineers before they can be stored.
3) At least 2 people in the logistics department cross-check the goods to be sent before delivery.
9.Can you guarantee the safe and reliable delivery of your products?
Yes, we strictly adopt the international standard packing. We also use special packaging for dangerous goods, and refrigerated shipping for items with temperature requirements. Special item packaging and general cargo standard packaging requirements may incur additional costs.
10.How about the freight?
The cost depends on how you choose to get the goods. Express is usually the fastest but also the most expensive way. Sea freight is the best solution for large quantities of goods. The exact shipping cost depends on the purchase amount、quantity and weight of your order. Please feel free to contact us for more information.
+86 010-64225983
+8613811814778
Building 26, Liyuan Community, Chaoyang District, Beijing, China
