
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.
- Category
- Surge Protection Devices
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.
Specifications
| Models | LP-C/DB9-5, LP-C/DB9-12 |
|---|---|
| Typical application | RS-232 (LP-C/DB9-5); RS-485 (LP-C/DB9-12) |
| Rated operating voltage Ue | 5 V (LP-C/DB9-5); 12 V (LP-C/DB9-12) |
| Max. continuous operating voltage Uc | 8 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 fg | 45 MHz |
| Insertion loss | ≤ 0.5 dB |
| Connector | Standard DB9 |
| Housing material | ABS |
| 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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