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PT-3 CCTV Camera Power Cable Lead, 2.1mm Power Jack, DC Power Pigtail
PT3 Power Cable Connector Lead


 

CCTV Power Cable Lead

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Product Code: PT-3


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Description
 

PT-3 power leads are used to connect pre-made Siamese coax cable for security camera to a DC power supply box. They are also referred to as 12V DC power cable leads, CCTV DC power pigtails, and security camera power connectors. PT-3s provide 6 inches of 8 gauge power cable and a female plug type connector. The diameter of the connector is 2.1mm which is the standard size used in low voltage applications.

We also supply PT-4 male security camera power connectors here. Sometimes there is confusion around which is male and which is female. Please refer to this male / female power jack comparison to be sure that you are buying the right type.

CCTV Power Pigtail to Power Supply Box

12V DC Power Cable Lead Connect to Power Supply Box

The above diagram shows to use a PT-3 power lead to connect pre-made Siamese CCTV cables to a multi-channel power supply box. The 2.1mm female end of the PT-3 plugs into the power portion of the Siamese cable. Then the raw cable ends connect to the power supply box with screw terminals. The BNC video end of the cable connects to the back of the DVR (Not shown connected in the picture). You can see additional pictures that show how to connect CCTV cables to a power supply box here.


Using PT-3 Power Leads with RG59 Coax Cable

If you plan to use RG59 Siamese cable spools to install DC powered security cameras . Your DC cameras will most likely have a 2.1mm male power input plug. In order to attach the 18/2 power cable from the RG59 Siamese, installers can attach a PT-3 power lead to the 18 gauge power cable using butt connectors, B connectors, or the power wire connector of their choice.

Security Camera System Installation Diagram with HD Security Camera wired to DVR and Power Transformer via RG59 Coax Cable

Here is a complete HD CCTV camera installation diagram that uses an RG59 cable with an individual power transformer powering the camera from the DVR side of the cable run. You may click on the image for a higher resolution view.

  • The RG59 Siamese cable is cut to the exact length required.
  • On the camera side of the cable, a BNC connector is attached to the RG59 coax and a PT-3 power lead is attached to the 18/2 power cable.
  • On the DVR side, a BNC connector allows the coax cable to connect to the video input of the DVR and PT-4 male 2.1mm power lead is attached to the 18/2 power wire with B connectors so that the power cable can attach to an individual power transformer - which has a 2.1mm female power connector.

CCTV Cable Installation Guides

We have the following installations guides available if you want to learn more about how to wire security camera systems (analog CCTV and HD).


Power Jack Male Female Comparison

When it comes to CCTV power connectors, there is a lot of confusion regarding this connector is male and which is female. At first it appears that the female connector is actually the male, but the gender designation goes by the center conductor.

CCTV Power Cable Pigtail Connector

The above image shows a close-up of the male and female jacks on a PT-4 and PT-3 connector. The center conductor on the PT-4 is inserted into the body of the PT-3 which is why the PT-4 is referred to as the male power lead and the PT-3 as the female.


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