Below is a table showing the differences between L-N type surge protectors and L-PE type surge protectors, in descending order of importance:
| Difference | L – N method surge protector | L – PE connection method surge protector |
|---|---|---|
| 1. Installation position | Installation between the phase and neutral lines | Installation between the phase and earth lines |
| 2. Protecting object | Protecting against voltage surges between line and line | Protecting against voltage surges between line and earth |
| 3. Protective principle | The protective device is triggered by monitoring the voltage between the phase line and the neutral line when the voltage exceeds the set threshold value | The protective device is triggered by monitoring the voltage between the phase line and the ground line when the voltage exceeds the set threshold value |
| 4. Scope of application | Suitable for three – phase four – wire power systems | Suitable for three – phase three – wire power systems |
| 5. Usage | Mainly used in industrial and commercial buildings, residential and other power distribution systems | Mainly used in industrial equipment, mechanical equipment and other power systems |
| 6. Protection Effect | Effectively protects equipment and circuits from voltage surges. | Effectively protects equipment and circuits from voltage surges. |
| 7. Wiring mode | Connection mode is parallel connection between L and N lines | Connection mode is parallel connection between L and PE lines |
| 8. System grounding | L – N grounding | L – PE grounding |
| 9. Current distribution | When a voltage surge occurs, the current is evenly distributed between L and N. | When a voltage surge occurs, the current flows mainly through L to PE. |
| 10. Safety | If the neutral wire is disconnected, the surge protector will still work properly | If the ground wire is disconnected, the surge protector may lose its protective capability |
About LEEYEE:
Established in 2009, LEEYEE is a specialized manufacturer of Solar Panel Connectors. We own the certificates of CE, CB, ISO9001, and TUV. In addition, we support customization options for color appearance, parameters, and logos. Welcome to consult for product catalogs and inquiries, you can contact us via email at devin@cnspd.com.
