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Quick Details

  • Place of Origin: Shanghai, China (Mainland)
  • Brand Name: LERDN
  • Model Number: LDY-RJ45
  • Working voltage Un: 12V
  • Max. continuous voltage Uc: 18V
  • Nominal discharge current In(8/20μs): 5kA
  • Transmission rate Vs(bit/s): 2M
  • Iterface Form: wiring terminal
  • Certification: ISO9001/ISO14001/CE/ROHS

Packaging & Delivery

Packaging Details Standard export packing
Delivery Time Lead time within 3 days after payment


lightning rj45
1.Sole agents in 5 nations
2.Wiring terminal earthing
3.Multilayer protection circuit

lightning rj45  

Application range:

LDY-485/L signal surge protective devices are applied to the surge protection of control signal and twisted data pair, which can prevent various dialing equipments from permanent damage or transient interruption arising from inductive overvoltage, overcurrent and the other transient surge voltage caused by surge or industrial noise, etc.


Main feature:

  1. Aluminum profile shell, attractive and durable, good shielding effect.
  2. Wiring terminal earthing, convenient to use, reliable connection.
  3. Introducing multilayer protection circuit, selecting the latest high-speed surge protection device of quick response, low output residual voltage and super transmission performance.


Main technical data:




Nominal operating voltage Un

12 V

Max. continuous operating voltage Uc

18 V

Nominal discharge current In (8/20μs)

5 kA

Voltage protection level Up

≤ 80V

Response time tA

line to line

≤ 1ns

line to earth

≤ 100 ns

Transmission rate Vs (bit/s)

2 M

Insertion loss Ae

≤ 0.3 dB

Housing material

aluminum profile

Interface form

wire terminal

Operating temperatur



Installation instruction:

  1. The protector connected in serial between the signal channel and the protected device.
  2. Connect the input terminal to the signal channel, and the output terminal to the protected device, reverse connection prohibited.
  3. Connect the earthing wire of the protector to the equalizing ring of the lightning protection system.
  4. Invalid system: the earthing short circuit or open circuit.

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