Surge Protection Devices

DB9 Signal Lightning Protector LP-C/DB9

Model LP-C/DB9

LP-C/DB9 signal lightning protector for RS-232 and RS-485 equipment with DB9 interfaces, guarding against induced overvoltage, overcurrent and transient surges from lightning or industrial noise, with 100 A nominal discharge current and ≤0.5 dB insertion loss.

Overview

About the DB9 Signal Lightning Protector LP-C/DB9.

The LP-C/DB9 series lightning protector is a surge protection device for equipment with a DB9 serial interface. Fitted in line on the DB9 connector, it protects RS-232 and RS-485 ports against induced overvoltage, overcurrent and other transient surge voltages caused by lightning or industrial noise, which could otherwise permanently damage equipment or cause a sudden interruption. Two versions are available: LP-C/DB9-5 for RS-232 at 5 V and LP-C/DB9-12 for RS-485 at 12 V. Its compact ABS housing keeps transmission performance high with low insertion loss.

Features

  • Standard DB9 connector for easy installation and replacement
  • Fast response with low output residual voltage
  • Superior transmission performance: 45 MHz transmission rate, insertion loss ≤ 0.5 dB
  • Nominal discharge current 100 A (8/20 µs)
  • Small, adaptable ABS housing
  • Wide operating temperature of −40 … 80 °C

Models

  • LP-C/DB9-5: for RS-232 lines, rated operating voltage 5 V, maximum continuous operating voltage 8 V
  • LP-C/DB9-12: for RS-485 lines, rated operating voltage 12 V, maximum continuous operating voltage 18 V

Applications

  • Equipment with DB9 interfaces
  • RS-232 serial communication links
  • RS-485 serial communication links
  • Protection of instrumentation and control equipment against lightning and industrial noise

LKS supplies the LP-C/DB9 signal lightning protector in Malaysia, with installation and after-sales support. Contact our engineers to choose the right version and request a quotation.

  • Surge protection
  • Lightning protection

Specifications

ModelsLP-C/DB9-5, LP-C/DB9-12
Typical applicationRS-232 (LP-C/DB9-5); RS-485 (LP-C/DB9-12)
Rated operating voltage Ue5 V (LP-C/DB9-5); 12 V (LP-C/DB9-12)
Max. continuous operating voltage Uc8 V (LP-C/DB9-5); 18 V (LP-C/DB9-12)
Voltage protection level Up< 80 V
Nominal discharge current In (8/20 µs)100 A
Shock voltage (10/700 µs)1.5 kV
Transmission rate fg45 MHz
Insertion loss≤ 0.5 dB
ConnectorStandard DB9
Housing materialABS
Operating temperature−40 … 80 °C

Lifecycle support

Installed, calibrated and maintained.

With more than two decades in valves and instrumentation across a diverse range of industries, we keep instruments accurate and valves healthy, because valve health management is vital for plant safety.

  • Installation & commissioning
  • Calibration & testing
  • Maintenance & overhaul
  • Dismantling & replacement

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  3. 03Quotation and supportSupply, installation, calibration and after-sales service.