Combined Surge Protective Devices(SPD) for Coaxial Video System NKP-TEL-4C-3a/3a1

产品描述

• Main Features
• Product Parameter
• Electrical Diagram
• Wiring Diagram
• Dimension
•  *Installation Notes
•  Model Selection Table

 

NKP-TEL-4C-3a/3a1

The NKP-TEL-4C-3a/3a1 surge protector is designed to protect coaxial signal equipment against transients caused by lightning, electrostatic discharge and ground surges that can enter equipment from the signal lines. The NKP-TEL-4C-3a/3a1 features BNC connectors for camera, cable TV, cable network, and satellite antenna, and features terminal blocks for power and control system. The systematic use of MOV, gas discharge tube and fast clamping diodes, provides a large discharge current capacity and low attenuation, ensuring reliable communication.

 

Main Features

• Coaxial signal surge protector
• Camera/cable network/satellite antenna
• BNC9 connector/terminal blocks/terminal blocks
• Ultrafast response time <1ns
• Transmission Rate: 20MHz
• Systematic use of MOV, 3-pole gas tube and fast clamping diode
• Combined coaxial surge protection for power, video and control system

 

Product Parameter

Model No.	NKP-TEL-4C-3a/3a1
ELECTRICAL CHARACTRISTICS
Typical Application	combined coaxial video, power and control system
Nominal Operation Voltage(Un)	Video: ≤6Vdc; Control: ≤12Vdc; Power: 15-220V dc/ac
Maximal Operation Voltage (Uc)	Video: 8Vdc; Control: ≤24Vdc; Power: 270V dc/ac
Nominal Discharge Current (In)	Video(C2): 5kA (8/20μs); Control(C2): 5kA (8/20μs); Power(T2): 3kA (8/20μs)
Maximal Discharge Current (Imax)	Power(T2): 6kA (8/20μs)
Voltage Protection Level (Up)	Video(C2): ≤500V; Control(C2): ≤650V; Power(T2): ≤1800V
Response Time (tA)	1ns
Insertion Loss	Control: ≤0.5dB (20MHz); Power: ≤0.5dB (3MHz)
Max. Transmission Rate	20Mbps
MECHANICAL CHARACTRISTICS
I/O Connector	Video: BNC9/BNC9; Power & Control: terminal blocks
Protection Port Numbers	each line protection for power/video
Failure Indicator	/
Place of Installation	indoor
Mounting	35mm standard rail (optional)
Enclosure Material	aluminum alloy
Enclosure Color	silver
Degree of Protection	IP20
Test Standard	GB/T18802.21/IEC61643-21
ENVIRONMENTAL CHARACTERISTICS
Stocking Temperature	-5℃~+40℃ (-41℉-104℉)
Operating Temperature	-20℃~+70℃ (-68℉-158℉)
Relative Humidity (RH)	5% - 95% (non-condensing)
Operating Altitude	<3000m (9843ft)
Dimension(L*W*H)	4C-3a:103mm*38mm*76mm; 4C-3a1:86mm*40mm*52mm
Weight(G/W)

 

 

Electrical Diagram

Wiring Diagram

NKP-TEL-4C-3a

 

NKP-TEL-4C-3a1

 

Dimension

NKPC-TEL-4C-3a

 

NKP-TEL-4C-3a1

 

 *Installation Notes

1. Must disconnect power before installation, no hot-line operation is allowed, and better to under the guidance of professional electrician.
2. For best performance, mount protector in serial with the equipment it is protecting as close as possible, and better to install one protector at each end of the data line.
3. The ground wire on the product (if included) must be attached directly to the metal chassis of the equipment to be protected. The length of the grounded wire is not to exceed 11 inches.
4. No special maintenance is needed, however regular inspection is needed, especially during storm seasons.

 

 Model Selection Table

Model	Configuration
NKP-TEL-4C	Coaxial Surge Protection Devices for Video Surveillance, BNC-K/BNC-J Connector
NKP-TEL-4U	Coaxial Surge Protection Devices for Video Surveillance, 8/16 ports, BNC-K/BNC-K Connector, 19” inches rack-mount
NKP-TEL-4C-T	Coaxial Surge Protection Devices for Satellite antenna and Cable network, specific connectors for all appliances(N, BNC, F, L16, SL16, etc.)