| Keywords: RS485 bus lightning arrester, RS232 bus lightning arrester, RS422 bus lightning arrester, control line lightning arrester, industrial control signal lightning arrester |
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| The DT series industrial automation control system surge protector is designed and manufactured based on IEC and GB standards, using PRE-ETS (Surge Energy Intelligent Interception and Absorption System) patented technology for ground free lightning protection. It has standard terminal connectors and can protect two communication lines. It is a terminal surge protector for process control system equipment, system I/O, and communication systems, and is used for sensors, transmitters, and other applications RS-485、CAN、RS-232、RS-422、 Thermocouples, thermal resistors and other on-site instruments, as well as AI, AO, DI, DO and other I/O interfaces of PLC and DSC, provide precise surge protection. The maximum current capacity of the product is 10kA, and it is installed without grounding. It can select the most appropriate limiting voltage for different lines and is suitable for surge protection of various instrument signal lines, various fieldbus systems, and various industrial communication lines. |
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| Groundless lightning protection patented technology |
No ground interference, no ground counterattack |
| 2-wire communication line surge protection |
Maximum discharge current 10kA (8/20 μ s) |
| Low micro insertion loss |
Multiple protection rated voltage options |
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| Product performance parameters: |
| model |
CX-DTPH-M |
| application type |
RS485/RS232/RS422 bus |
| Nominal operating voltage Un |
12V |
| Maximum continuous operating voltage Uc |
15V |
| Protection level Up (1.2/50 μ s) |
35V |
| Maximum discharge current Imax (8/20 μ s) |
10KA |
| Rated load current IL |
500mA |
| Response time ta |
≤1ns |
| insertion loss |
＜0.2dB |
| interface type |
connecting terminal |
| Failure indication |
Short circuit or disconnection of the line to ground |
| Ambient Temperature |
-40/85oC |
| Installation method |
series connection |
| protection mechanism |
Adopting PRE-ETS surge energy interception and absorption lightning protection patented technology |
| Grounding requirements |
No grounding required |
| External dimensions |
18×65×90mm |
| Housing material |
Engineering plastic, compliant with UL94 V-0 |
| *The product parameters are subject to the actual product manual. |
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| Product scope of application: |
- Surge protection for communication lines such as RS232/RS422/RS485 bus
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| Product size and installation diagram: |
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