| Working voltage: DC 220V | Counting range: 0~999 times |
| Product power consumption: 2 W | Counting threshold: 1KA (factory default) |
| Communication method: RS485 | Alarm indication: red LED is always on |
| Communication protocol: standard MODBUS, MQTT protocol | Transmission distance: wireless (4000 m visible distance) |
| Maximum sustainable voltage (Uc): 385V～ | Housing material: plastic housing IP protection grade: IP20 |
| Type I maximum discharge current (Imax): 20-40kA | Environmental humidity; <95% working temperature; -20~70℃ |
| Type Ⅱ maximum discharge current (Imax); 40-80kA | Dimensions; 145*90*50mm (length, width and height) |
| Switch quantity acquisition: 3 channels (remote signal, air switch, grounding) | Product weight: 180g |
| SPD action count: 1 way | Installation method: 35 mm rail |
Surge protective device (SPD), also known as lightning arrester, is an electronic device that provides security protection for various electronic equipment, instruments and communication lines. When the electrical circuit or communication line suddenly produces peak current or voltage due to external interference, the surge protector can conduct shunt in a very short time, so as to avoid the damage of surge to other equipment in the circuit Surge protective device, suitable for 50 / 60Hz AC, rated voltage of 220 V to 380 V power supply system, for indirect lightning and direct lightning impact or other transient overvoltage surge protection, suitable for family residential, tertiary industry and industrial field surge protection requirements.There is no uniform definition of intelligent SPD at home and abroad, but the concept of intelligent SPD has been recognized by R&D designers and users in practice. Intelligent SPD should have the following four basic characteristics: ① Surge protection function and safety performance; ② Monitoring function of operating parameters; ③ Fault alarm and failure prediction function; ④ Communication and networking functions. Intelligent SPD realizes lightning current monitoring, which can monitor parameters such as lightning peak current and lightning times of tower in real time. With the organic combination of intelligent surge protector and NB-IoT wireless module, many problems in substation intelligent lightning monitoring will be solved easily.Power equipment monitoring system Industrial communication field Railway distribution monitoring Environmental water conservancy Petroleum, chemical and metallurgical industries Coal, food industry new energy Airport terminal● Integrated design 80kA reliable counting, no crash. ● The sensor is built-in, the peripheral wiring is simple, and the installation is simple. ● The start threshold of lightning counting is adjustable. ● Self-lightning protection to ensure that it is not damaged by intrusion surges. ● 40kA/80kA SPD is optional. ● Support wired and wireless transmission. ● On-site alarm function, even without networking, you can easily realize on-site management. ● Remote alarm function, through the cloud server, you can remotely monitor the data of any collection terminal and obtain real-time alarm information.1) Monitoring function of the module: ● SPD deterioration status indication ● Back-up protector failure indication ● Monitoring the number of lightning strikes ● Grounding device monitoring ● Temperature monitoring 2) Management of software system: ● Smart patrol setting ● Fault information setting ● Fault signal output ● History query
LH-zn/40 Maximum continuous operating voltage Uc 385V~ Nominal discharge current In 20KA Maximum discharge current Imax 40KA Voltage protection level Up ≤ 1.8KV Appearance: white, laser markingLH-zn/60 Maximum continuous operating voltage Uc 385V~ Nominal discharge current In 30KA Maximum discharge current Imax 60KA Voltage protection level Up ≤ 2.1KV Appearance: white, laser markingLH-zn/80 Maximum continuous operating voltage Uc 385V~ Nominal discharge current In 40KA Maximum discharge current Imax 80KA Voltage protection level Up ≤ 2.2KV Appearance: white, laser markingWith the development of smart cities, the wide application of new technologies such as Internet of Things, cloud computing and the next generation Internet, intelligent SPD based on NB-IoT technology is increasingly becoming an important weapon for the communication industry to ensure the security of network operation. Monitoring, controlling and managing the lightning protection system of communication stations will be the only way to improve the management level of communication networks. The application research of NB-IoT will strongly promote the industry innovation of intelligent surge protector and promote the progress of new technology.
1. Ground wire 2. Ground wire indicator 3. Lightning protection indicator 4. Air switch indicator 5. Working indicator 6. Digital tube counting display 7. 485 communication interface A 8. 485 communication interface B 9. Air switch detection 10. Air switch detection 11. Empty 12. Negative power supply N 13. Power supply positive L 14, N 15. L3 16, L2 17, L1