Suzhou Industrial Park Kejia Automation Co., Ltd.
Main products:NKP Power SPD series,KDY Power SPD series,NKP Signal SPD series,KTL Signal SPD series,Power Distribution Unit
Contact Us
  • Contact Person : Ms. Lou Sandy
  • Company Name : Suzhou Industrial Park Kejia Automation Co., Ltd.
  • Tel : 86-512-65151966
  • Fax : 86-512-65111396
  • Address : Jiangsu,SuZhou,85 Kilometers Away From Alongside the National Highway 312 of Suzhou Industrial Park
  • Country/Region : China
  • Zip : 215001

Three-in-one video monitoring SPD: NKP-TEL-4C-3a CCTV Surge Arrester

Three-in-one video monitoring SPD: NKP-TEL-4C-3a CCTV Surge Arrester
Product Detailed
Video monitoring SPD 1 multi-function surge protection 2 certificated by ISO9001:2008 3 3-in-1 design 4 insert loss low

NKP video SPD/ CCTV Surge Arrester

Product Description

NKP series video SPD is applied to the lightning surge protection of camera monitoring system front-end, power cord, video line, signal line. It can effectively prevent the equipment which is caused by potential difference of power and network line transient enlargement. It is designed with advantage of large intake capacity, low residual voltage, fast response time and long lifetime.

Technical parameters

Model and specification


The typical model applies

video , control, power ; three-in-one

Operation voltage

Video 8V, Control12V,  Power 15~270V

Normal discharging current (8/20 us) In(kA)


Max. discharging current(8/20 us) Imax (kA)


Voltage protection level Up

Video  600V. Control 650V; Power ≤1200V

Response time(ns)


Insertion loss


Maximum transmission rate


I/O interface

Video frequency: The BNC-9 put in a word; Control and The power supply: Connect the line carries son

Ambient temperature

-40°Cto 80°C

Outer covering material

Aluminum Alloy

Protection grade




Test grade

GB/T 18802.21-2004


Product installation:

1, This product is in series installed on power cable, signal line and video line of the camera, the output end is connected with video camera, and it is better to keep away from the camera less than 50cm during installation.

2, The power supply connection: Products should be match with protected camera power supply voltage. When it needs installation please according diagram to install.  One of power supply line, “L ~” is firewire or positive. “N ~” is zero line or negative.

3, The video signal connections: The input end is connected with the signal channel, output end is connected to the video camera, connectors should be connected securely and not be reversed.

4, The control signal connections: Each group use a pair of signal lines, then connect terminals whose logo is “CONTROL”.

5, Apply to indoor operation, such as outdoors installation. You must install waterproof shell.

6, All wiring must be solid and connect by electric. SPD cable: BVR≥1.5 mm2 , grounding wire: BVR ≥2.5 mm2 .

7, Lightningproof grounding should be consistent with lightning protection regulatory requirement, ground wire should be thick and short as possible, resistance should be less than 10Ω.

Three-in-one video monitoring SPD: NKP-TEL-4C-3a CCTV Surge Arrester

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