AC Power SPD
The CSMS series AC power distribution system surge protective devices (surge protectors) are designed in accordance with IEC 61643-11 and GB/T 18802.11 lightning protection standards, and are applicable for the protection of power supply and electrical equipment in AC power distribution systems. They have passed the lightning protection tests conducted by professional national testing institutions. Once an overvoltage occurs, the surge protectors can instantly connect the protected lines to the equipotential system, ensuring that all ports of the equipment are at the same potential. At the same time, they discharge the large amounts of pulse currents generated on the circuit due to lightning induction, clamp the overvoltage, and reduce the voltage difference at each port of the equipment.
Our AC Power SPD
Our products can effectively clamp the instantaneous high voltage of the circuit, ensuring that all subsequent precision electrical equipment and industrial control instruments are not damaged by surge currents.
EV Charging Stations SPD->Type 2 / Class ll
Uc(V) :
AC385V
In (8/20 μs):
20kA
Imax(8/20 μs):
40kA
Mode of Protection:
LN,N-PEReference Standards:
IEC 61643-11OEM/ODM Acceptable
Additional Function:
Thermal Tripping Protection, Status Indicator, and Remote Signaling
AC Power SPD->Type 2 / Class ll
Uc:
AC385V/420V/440V
In (8/20 μs):
20kA
Imax(8/20 μs):
40kA
Mode of Protection:
L/N-PE; L-N, N-PEReference Standards:
IEC 61643-11OEM/ODM Acceptable
Additional Function:
Thermal Tripping Protection, Status Indicator, and Remote Signaling
Wind Power SPD->Type 2 / Class ll
Uc(V) :
AC760V/1500V
Un(V) :
AC690V/1140V
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):
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.
High-Quality Components
Long Service Life
This surge protector adopts high-grade and high-reliability lightning protection components with strict quality screening standards.
Dual Overcurrent & Overheat Protection
with Fault Indication
It is equipped with a built-in integrated overcurrent and overheating temperature-controlled tripping device.
Superior Electrical Performance
Easy and Quick to Replace
The product boasts superior electrical performance with outstanding core parameters. It achieves extremely low leakage current during normal operation, which effectively reduces no-load power consumption and energy loss.
Pluggable Modular Design
Easy and Quick to Replace
This SPD adopts an advanced pluggable modular structure, realizing independent and flexible module assembly. The simple plug-and-play structure reduces professional operation requirements and reliable daily maintenance .
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
How often should AC SPD be inspected or replaced?
AC SPD should be inspected regularly, especially after thunderstorms or electrical faults. If the status indicator shows failure or the remote alarm indicates a fault, the SPD module should be replaced.
Can AC SPD protect equipment without proper grounding?
No. Proper grounding is essential for effective surge protection. Without a reliable grounding path, the SPD cannot safely discharge surge energy.
What does Imax or In mean in AC SPD?
In is the nominal discharge current that the SPD can repeatedly handle under standard test conditions. Imax is the maximum discharge current the SPD can withstand once under defined test conditions.
What pole configuration should I choose for AC SPD?
The pole configuration depends on the power system. Common options include 1P, 1P+N, 2P, 3P, 3P+N, and 4P. The selection should match the electrical system and grounding arrangement.
How do I choose between Type 1 and Type 2 AC SPD?
Type 1 SPD is recommended for the main incoming distribution side, especially where direct lightning risk exists. Type 2 SPD is commonly used in sub-distribution boards to protect downstream equipment from induced surges and switching overvoltage.
What is an AC power surge protective device?
An AC power surge protective device is used to protect low-voltage AC electrical systems from transient overvoltage caused by lightning, switching operations, or grid disturbances.
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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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