DC 2.1mm Male Power Plug Screw Terminal Connector CCTV 12V Green

The DC 2.1mm Male Power Plug Screw Terminal Connector CCTV 12V Green (SKU MALE-POWER-SCREW-GR) puts a plug on the end of a bare low-voltage power cable. You do not need to solder.

What the specs mean in practice

• Male DC plug, 5.5mm x 2.1mm: this is the end that pushes into a socket. It matches DC power sockets with a 5.5mm outer diameter and a 2.1mm inner diameter.
• Screw terminals: strip the cable, place the positive and negative conductors in the terminals and tighten the screws. No soldering iron is needed, so the job can be done at the camera or inside an enclosure.
• 12V DC: it is intended for 12V DC power cables on CCTV and similar low-voltage installations.
• Compact body: sized for junction boxes and field installations.
• Colour: green.

Where it is used

CCTV cameras, DVR (digital video recorder) and NVR (network video recorder) power supplies, and LED lighting. It suits a new lead made to length or a damaged plug that needs replacing.

What else you need

You need a 12V DC power supply and a two-conductor cable suited to the load. Cable choice matters for cameras with infrared (IR) night vision. IR LEDs draw more power in the dark, so a thin or long cable can cause voltage drop. That shows up as flickering or a black image at night.