Don't Ignore It! Factors To Consider When Purchasing A Can Bus Lightning Arrester Module

Since the CAN bus usually involves long-distance signal transmission and is exposed to outdoor or industrial environments, it is extremely vulnerable to lightning surges and power surges. When selecting 10 kv lightning arrester for a CAN bus (Controller Area Network) system, several key factors must be considered to ensure that the module can effectively protect the device from lightning strikes and surge voltages. CAN bus is often used in scenarios that require high reliability, such as automobiles, industrial automation, and intelligent transportation, so it is very important to design appropriate lightning protection for it. The following are key factors to consider when purchasing CAN bus 11 kv lighting arrester.

1. Maximum discharge current (Imax)

1.1 Definition and importance
The maximum discharge current (Imax) is the maximum surge current that the 11 kv lightning arrester can withstand when struck by lightning, usually in kiloamperes (kA). This parameter reflects the ability of the lightning arrester to withstand lightning surges.
Importance: The CAN bus is usually used in the control systems of vehicles and industrial equipment. The equipment is dispersed and exposed to complex environments. Lightning surges may be transmitted along the communication line to the device end, causing equipment damage. The Imax of 11kv 10ka lightning arrester directly determines its ability to cope with lightning strikes and surges. Choosing a module with appropriate Imax can effectively protect the system.
1.2 Selection recommendations
For CAN bus systems, 11kv lighting arrester with 5kA to 20kA is usually selected. The specific value depends on the lightning strike frequency and line length of the use environment. If the system is deployed in an area with frequent lightning strikes or in an outdoor environment, it is recommended to select 11kv lighting arrester price with 10kA and above to ensure sufficient lightning strike tolerance.

2. Voltage protection level (Up)

2.1 Definition and importance
The voltage protection level (Up) indicates the maximum voltage value to which 11kv lightning arrester price can limit lightning surges when working. When a surge occurs, 11kv surge arrester protects the device from overvoltage damage by reducing the voltage on the transmission line.
Importance: The operating voltage of the CAN bus system is usually low (12V or 24V), and the system is very sensitive to voltage fluctuations. If the Up value of 120 kv lightning arrester is too high, the surge voltage may exceed the tolerance range of the device, causing device damage or communication failure. Therefore, the Up value needs to be as low as possible to ensure that the device can operate within a safe voltage range.
2.2 Selection Recommendations
To protect devices in the CAN bus system, it is recommended to select 12kv surge arrester with an Up value in the range of 40V to 60V. For precision control equipment or applications that are sensitive to voltage changes (such as automation control and precision measurement systems), the Up value should be as low as possible to protect the device from high voltage surges.