DK-nDCt/RJ45 Network Signal Surge Protective Device

by Guangxi Dikai Sci&Tech Co., Ltd


External View:

DK-nDCt/RJ45  5-8S

DK-nDCt/RJ45  5-8SG



  Product Introduction:

1. Standard: This product is designed according to national standard GB/T 18802.21-2016. It is accordance with the criterion of Low-voltage Surge Protective Devices-Part 21: Telecommunication and Signal Network Surge Protective Device(SPD)—–Performance Requirement and Test Method  Requirement of National Standard.

Product structure: This product is installed in the signal line. Built in multi-level discharge pressure limiting circuit, the connector type is RJ45. it is with easy installation and maintenance.


Product Features: With features of low residual voltage, quick response, low transmission loss, large flow rate, long life, easy installation and wiring, simple maintenance, etc.

Product Item No

Item No. Transmission Rate Mbit/s Application
DK-nDCt/RJ45  5-8S 100 100M
DK-nDCt/RJ45  5-8SG 1000 1000M
DK-nDCt/RJ45  POE 100 POE IP Camera


Technical Parameter:

Maximum continuous operating voltage Uc 5V DC
Impulse Current 3kA
Voltage Protection Level Up(10/700μs) 30V
Respond Time <1ns
Protection Mode Core-PE,Core-Core
Transmission Rate Refer to the  Specs
Insert Loss <0.3dB
Protective Core Quantity 1-2;3-6;


Shell Protection Material Aluminum Alloy
Shell Flame Retardant Rating UL94-V0
Enclosure Protection Class IP20
Color Black
Size(mm) 88×45×25
Damage Status Signal Off
Working Temperature -25℃~+70℃
Relative Humidity ≤95%
Installation Standard 35mm Din Rail Mounting
Wiring Port Quantity 2PIN
Signal Line Connector Type RJ45
Signal Line Screw Specification M2.5
PE Screw Specification M4
Cross Section of PE Connector (BVR) 4mm2~6mm2



Product Installation Diagram:


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Guangxi Dikai Sci&Tech Co., Ltd

Established in June, 1989, Guangxi Dikai Sci&Tech Co., Ltd. arouses its all efforts and strives for progress for near 30 years to be the most well-known professional lightning protection company.
Guangxi Dikai Sci&Tech Co., Ltd concentrates on new technology, research and development on new products, production and service. With class-A qualification of detection of lightning protection device, Guangxi Dikai Sci&Tech Co., Ltd has provided more than 10 millions cases of lightning protection project design, product installation, inspection and maintenance, technical consulting service. Products are well sold all over the world.
Dikai Company covers five product series: direct lightning protection products, power line surge protection products, signal line surge protection products, combined series surge protection products, and grounding resistance reduction products, with more than 100 varieties of products.
Dikai Company is located in national level high-tech zone with an area of 40000 square meters. It has R&D center, several production lines of SPD, National Accredited Laboratory(CNAS)/Testing Center of lightning protection products, and lightning proving ground. It is the autonomous region level enterprise technology center, owning nearly hundred patents. Products are CE certified. Dikai Company has passed through the three System Certifications of ISO9001 International Quality Management System, ISO14001 Environmental Management System, OHSAS18001 Occupational Health and Safety Management System(OHSAS).
Dikai Company always adheres to business service concept of “Customer First and Sincerity Forever”, based on China, go toward world, endeavoring to reduce the damage from lightning.