TRSS-485 control signal surge protection device
Model: TRSS-485
Color: white / red
Verification: CE
product description
Control signal lightning protection device: used for transmission
protection of sensitive control signals, widely used in computer
communication systems, monitoring and control systems, access
control intercom systems, automatic control systems, data
transmission of security systems, etc. Surge protection. Typical
for computer RS485, RS422RS232 and other communication serial
ports. Protect it from lightning induced voltages, grid voltage
fluctuations, electrostatic discharges, and shock surge voltages.
Product specifications
| Main technical parameters | TRS-485 |
| Max continuous operating voltage Uc(VAC) | 24 |
| Voltage protection level Up(V)≤ | 40 |
| Max discharge current (8/20μS) lmax(kA) | 10 |
| Nominal discharge current (8/20μS) ln(kA) | 5 |
| Response time ns | <1ns |
| Degree of protection | IP20 |
| Application | Primary protection for in line |
| Remarks | Other Uc can be customized |
working principle
The control signal surge protector is connected in series with the
front end of the protected device. When the transmission line is
subjected to induced lightning and other transient overvoltage
surges, the inrush current is discharged to the earth through the
protection branch of the surge protector, and the output is output.
The voltage is clamped to the voltage range allowed by the device,
thus ensuring the safety of the operating equipment.
Use attention
1. Look for the input/output interface identification of the
lightning arrester, and input the external line and output
connection equipment;
2. The grounding wire stress should be short, thick and straight to
reduce the influence of distributed inductance on the discharge of
lightning pulse electromagnetic pulse capability.
3. Industrial control signal lightning protection grounding should
be connected to the ground through an electronic switch.
4. Connect the lightning protection device (SPD) between the line
and the device port to be protected. Connect the grounding port on
the SPD to the grounding grid with multiple strands of copper wire,
and ensure that the grounding resistance is not more than 4 ohms.
Company Profile
Incorporated in 2006, Zhejiang Thor Electric Co., Ltd has built
everything to offer a wide range of innovative and reliable surge
protection solutions and products.
