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Description
Scope of application
Series single-channel AC/DC power supply lightning protection device, used for lightning protection of AC/DC power distribution equipment, such as program-controlled switches, security monitoring systems, etc. This product has beautiful appearance, convenient installation and wiring, simple maintenance, and can be used in comparison Long-term stable work in harsh environments. This product is used in the front end of AC/DC power distribution equipment to prevent damage to the system or equipment caused by induced overvoltage and overcurrent caused by lightning or surges.
Product advantages
■ Large flow capacity and long service life;
■ Adopt multi-level protection, low residual pressure and good protection effect;
■ Low insertion loss, superior transmission performance;
■ Built-in fast semiconductor protection device, nanosecond response speed;
■ Energy saving, environmental protection, rack structure, easy installation;
Technical Parameters
Product number | LFD-P12V/24V | LFD-P220 |
Operating Voltage Uc | 30V | 220V |
Limit voltage Up | 90V | 900V |
Flow capacity 8/20μs | 5KA | |
Maximum flow capacity 8/20μs | 10KA | |
Rated current | 2A | |
Product appearance | 40*25*25mm | 80*25*25mm |
Temperature range | -40℃…+80℃ | |
Insertion loss | ≤0.5dB | |
Response time | ≤1ns | |
Interface form | Terminal | |
Protection level | IP20 |
Installation and maintenance:
1. This product is connected in series with the corresponding position of the protected equipment, and the distance from the protected equipment should not exceed 50cm during installation.
2. Power connection: the two ends of the DC power supply correspond to "+" and "-", and the two ends of the AC power supply correspond to "L" and "N". If the terminal is unplugged and connected, it must be restored when reinstalling, otherwise it is dangerous!
3. The marked grounding terminal of the lightning arrester product should be connected to the ground wire. The screw of the ground wire is equipped with a wiring fork for the connection of the ground collecting bar and the ground wire of the lightning arrester. After the ground wire is connected, be sure to Tighten the screws. The grounding wire should be a copper wire of 2.5mm2 or more. The length from the grounding wire to the grounding bus bar should be less than 1m and as short as possible. The grounding resistance should be less than 10Ω.
4. Use the shortest wire connection possible for the grounding of the lightning arrester. The protector is grounded by terminal grounding, and the ground wire must be connected to the lightning protection ground wire. The signal shield wire can be directly connected to the ground terminal.
5. The lightning protection device does not need long-term maintenance when installed under the conditions that do not exceed the requirements, only routine maintenance of the system; if there is a problem with the line transmission during use, the line transmission will return to normal after replacing the surge protector , Indicating that the surge protector has been damaged and needs to be repaired or replaced.