Solar PV SPD
The CSMS series of dedicated surge protective device for AC & DC power in new energy photovoltaic(PV) systems have passed the lightning protection tests conducted by professional national testing institutions and are applicable to areas with high lightning risk (LPZ2 or the transition zone between LPZ2 and LPZ3). All the products adopt overvoltage protection components with excellent nonlinear characteristics. Under normal circumstances, the surge protector is in a high-resistance state with extremely low leakage current, ensuring the normal power generation of the photovoltaic system. When overvoltage occurs in the system, the CSMS series of photovoltaic system-specific surge protectors will immediately conduct within nanosecond timeframes, limiting the voltage amplitude within the safe working range of the equipment, and releasing the surge energy into the ground.
Our Solar PV SPD
The CSMS-A15 series AC power distribution system surge protector is designed according to IEC61643-11 and GB/T18802.11 lightning protection standards. It is suitable for AC 50Hz, 220V/380V and below TN-S, TN-C-S, TT, IT and other power supply systems.
PV DC SPD->DC Power SPD
Un(V) :
DC600V/1000V/1200V/1500V
Uc(V) :
DC670V/1200V/1500V/1800V
In (8/20 μs):
20kA
Imax(8/20 μs):
40kA
Reference Standards:
IEC 61643-31OEM/ODM Acceptable
Additional Function:
Thermal Tripping Protection, Status Indicator, and Remote Signaling
PV AC SPD->Type 2 / Class ll
Uc(V):
AC385V/760V/1100V/1500V
Poles:
2P,3P,3P+1(Series connection),4P
In (8/20 μs):
60kA
Imax(8/20 μs):
100kA
Mode of Protection:
L/N-PEReference Standards:
IEC 61643-11OEM/ODM Acceptable
Additional Function:
Thermal Tripping Protection, Status Indicator, and Remote Signaling
PV AC SPD->Type 2 / Class ll
Uc(V):
AC385V/760V/1100V/1500V
Poles:
2P,3P,3P+1(Series connection),4P
In (8/20 μs):
40kA
Imax(8/20 μs):
80kA
Mode of Protection:
L/N-PEReference Standards:
IEC 61643-11OEM/ODM Acceptable
Additional Function:
Thermal Tripping Protection, Status Indicator, and Remote Signaling
PV AC SPD->Type 2 / Class ll
Uc(V) :
AC385V/760V/1100V/1500V
Poles:
2P,3P,3P+1(Series connection),4P
In (8/20 μs):
20kA
Imax(8/20 μs):
40kA
Mode of Protection:
L/N-PEReference Standards:
IEC 61643-11OEM/ODM Acceptable
Additional Function:
Thermal Tripping Protection, Status Indicator, and Remote SignalingProduct Advantages
The premium core components feature excellent anti-aging performance and stable electrical properties under long-term and frequent surge impact, effectively extending the overall service life of the equipment and reducing frequent replacement costs for users.
Easy Maintenance
Standard DIN Rail
The product is compatible with the industry-standard 35mm DIN rail mounting specification, which is highly universal and adaptable.
Dual Overcurrent & Overheat Protection
with Fault Indication
Meanwhile, it is equipped with a visual fault failure indicator, which can clearly display the operating status and failure information in real time, enabling staff to quickly identify faults and carry out targeted maintenance.
Superior Electrical Performance
Better Surge Protection
In addition, it maintains an ultra-low residual voltage after clamping, which can fully and effectively protect precision electrical equipment and circuit systems from surge damage.
Pluggable Modular Design
Easy and Quick to Replace
The simple plug-and-play structure reduces professional operation requirements, bringing convenient and reliable daily maintenance for engineering and wiring applications.
Product Design
The installation design principle of the entire machine is developed and produced strictly in accordance with international lightning protection standards.
Innovative Design and Advanced Safety Features
Smart & Connected Design
High-Quality Components
Thermal Protection Design
Modular & Pluggable Design
Visual Status Indication
Why Choose Us?
The lightning impact response speed is extremely fast, capable of conducting and discharging the surge current within milliseconds.
Professional SPD Manufacturer
We are a dedicated surge protective device factory with integrated R&D and manufacturing capabilities. Equipped with professional electrical R&D engineers, we focus on SPD production for power, PV, telecom and industrial fields. As a real manufacturer rather than a trader, we guarantee competitive factory-direct prices and stable supply capacity for bulk orders.
Strict Quality Control
Rigorous quality management runs through every production link. Raw material inspection, semi-product aging tests and 100% finished product surge impact testing are mandatory. Our in-house lightning test lab follows IEC 61643 standards, our items pass strict performance screening to ensure safe, durable and certified SPDs for global markets.
Customization Support
We offer full OEM & ODM customization solutions. We can adjust SPD specifications, structures, current parameters, logos and packages based on your project requirements. Our technical team develops tailor-made SPDs for special industry scenarios, supporting small trial orders and fast customized sample delivery.
SOLUTIONS
FAQ
What information is needed to select PV SPD?
You need to provide PV system voltage, inverter type, combiner box design, grounding system, installation environment, and whether the project has an external lightning protection system.
Can CRESIN provide SPD solutions for 1500V solar PV systems?
Yes. CRESIN can provide PV surge protective devices suitable for high-voltage solar PV systems, including 1000V and 1500V DC applications.
What is the difference between Type 1 and Type 2 PV SPD?
Type 1 PV SPD is used where direct lightning current may enter the system, especially in exposed installations or systems with external lightning protection. Type 2 PV SPD is used to protect against induced surges and is common in most PV applications.
Do solar PV systems need both DC SPD and AC SPD?
Yes. The DC side protects PV strings and inverter DC inputs, while the AC side protects the inverter output and grid-connected distribution system. A complete PV surge protection design usually includes both sides.
What voltage should I choose for solar PV SPD?
The voltage rating should match the maximum DC voltage of the PV system. Common PV SPD voltage ratings include 600V DC, 1000V DC, 1200V DC, and 1500V DC.
Where should SPD be installed in a solar PV system?
SPD is usually installed on the DC side of the inverter, in the PV combiner box, and on the AC output side of the inverter. For larger PV plants, SPD may also be installed in distribution cabinets and monitoring systems.
What is a solar PV surge protective device?
A solar PV surge protective device is designed to protect photovoltaic systems from transient overvoltage caused by lightning strikes, induced surges, or switching operations.
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Address: No. 978 Tianchen Road, High-tech Zone, Jinan, Shandong,China
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The product range includes production technologies for smart capacitors, digital display meters, surge protectors, dedicated backup protection devices for surge protectors, self-resetting over/under-voltage protectors, control and protection switches, and automatic transfer switches for dual power supplies.
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