Chenzhu Lightning Arrestors, IS Barriers

Chenzhu - T series Signal SPD

The T Series Signal SPD is designed to protect sensitive electronic devices in automatic control systems from damaging surge events. It safeguards field equipment such as sensors, transmitters, flow meters, solenoid valves, thermocouples, and RS485/RS232 devices, as well as I/O interfaces in PLC, DCS, FGS, and ESD systems. Widely used in petrochemical, gas, environmental, and new energy industries, it also offers intrinsic safety versions that meet stringent certification standards.
 
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Intrinsic Safety & Signal SPD
 
 
 
 
 
 


The Intrinsic Safety 5V Signal SPD provides reliable surge protection for low-voltage signal circuits in hazardous environments. Certified with Ex ia IIC T4~T6 Ga intrinsic safety standards, it ensures safe operation in explosive atmospheres. Featuring hot-pluggable design and DIN rail grounding, it offers both convenience and high-performance protection.
 

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The Intrinsic Safety 24V Signal SPD offers robust surge protection for 24V signal circuits in hazardous environments. Certified to Ex ia IIC T4~T6 Ga intrinsic safety standards, it ensures safe and reliable operation in explosive atmospheres. Featuring a hot-pluggable design and DIN rail grounding, it combines high performance with ease of installation and maintenance.
 

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The Signal SPD for 5V provides reliable surge protection for low-voltage signal circuits in industrial and automation systems. With high surge handling capacity and a hot-pluggable design, it ensures both performance and ease of maintenance. Grounded through a DIN rail, it offers a secure and stable installation for long-term protection.

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The Signal SPD for 24V delivers reliable surge protection for industrial control and automation signal lines. Built with a high surge handling capacity and a hot-pluggable design, it ensures maximum uptime and easy maintenance. Grounded through a DIN rail, it provides stable and safe performance for long-term operation.

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