DC 5.52.1毫米公头至母头尾线电源线

DC 5.5*2.1mm male to female pigtail power cord designed for extending DC power connections in security, surveillance, LED and networking systems. Features 5.5mm outer diameter, 2.1mm inner pin, copper conductors and molded strain relief. Suitable for 12V and 24V DC applications including CCTV cameras, routers, LED strips and security systems.

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分类： 直流电源线

描述

This DC 5.52.1mm male to female pigtail power cord is a common DC power extension cable used in security surveillance, networking, LED lighting and low-voltage power distribution systems. It allows users to extend the distance between a DC power adapter and the end device, making it easier to install CCTV cameras, wireless routers, LED strips and other 5.52.1mm DC powered equipment. It is especially useful when the original power adapter is too short or when multiple devices need to be powered from a central power supply.

The cable uses a standard 5.5mm outer diameter DC barrel connector with a 2.1mm inner pin, which is one of the most widely used DC power connector sizes for consumer electronics and security equipment. The male connector plugs into a DC jack or female extension port, while the female connector receives a standard 5.5*2.1mm male power plug. This combination provides a simple and reliable way to extend DC power without modifying the original device connector.

Conductors are made of copper for good conductivity and stable power delivery. The 20AWG version is suitable for short-distance extension of low-power devices such as cameras, routers and LED strips. The 18AWG version is recommended for longer cable runs, higher-power LED strips or applications where lower voltage drop is required. Both versions are designed for low-voltage DC operation and are not intended for AC mains power connection.

Both connectors are fully molded with strain relief structures to reduce bending stress at the cable root and prevent internal wire breakage caused by frequent plugging, pulling and installation movement. The PVC jacket provides basic abrasion resistance and flexibility for indoor and protected outdoor installations. For outdoor use, it is recommended to route the cable through a conduit or weatherproof enclosure to protect the connectors and cable from moisture, dust and UV exposure.

This DC power cord is widely compatible with CCTV cameras, DVR systems, NVR systems, wireless routers, access control devices, LED strip lights, LED drivers, small monitors and other 12V or 24V DC devices using a 5.5*2.1mm DC jack. Standard lengths include 0.3m, 0.5m, 1m, 2m, 3m and 5m. For bulk OEM orders, we support custom lengths, wire gauges, jacket colors, connector polarity markings and private-label packaging.

DC 5.5*2.1mm male to female pigtail power extension cord
Standard 5.5mm outer diameter, 2.1mm inner pin DC barrel connectors
Copper conductors for stable DC power transmission
提供 20AWG 和 18AWG 两种规格，以满足不同的功率和距离要求
Molded strain relief on both ends for durability
适用于 12V 和 24V 直流应用
Compatible with CCTV camera, router, LED strip, security system and access control device
Standard lengths: 0.3m / 0.5m / 1m / 2m / 3m / 5m
Custom length, wire gauge, color and packaging supported for bulk OEM orders

技术规格

项目	规格
连接器 A	DC 5.5*2.1mm Male Plug
连接器 B	DC 5.5*2.1mm Female Jack
连接器尺寸	5.5mm Outer Diameter, 2.1mm Inner Pin
导体材料	铜
标准线规	20AWG
重型线规	18AWG
夹克面料	PVC
应力消除	两端均经模压成型
Voltage Range	12V / 24V 直流应用
标准长度	0.3m / 0.5m / 1m / 2m / 3m / 5m
颜色选项	黑色、白色，也可选定制颜色
应用	CCTV camera, DVR, NVR, router, LED strip, access control, security system
定制服务	Custom length, wire gauge, color, polarity marking, logo printing, private packaging, OEM bulk orders

常见问题解答

Q: What is a DC 5.5*2.1mm male to female pigtail power cord used for?

A: It is used to extend DC power connections for devices with a 5.5*2.1mm DC jack, such as CCTV cameras, routers, LED strips and security system equipment.

Q: What does 5.5*2.1mm mean?

A: 5.5mm refers to the outer diameter of the DC barrel connector, and 2.1mm refers to the inner pin size. This is one of the most common DC power connector sizes for 12V and 24V devices.

Q: Can I use this cable for 12V and 24V devices?

A: Yes, it is suitable for low-voltage DC applications including 12V and 24V devices, as long as the current and power requirements are within the cable rating.

问：18AWG和20AWG有什么区别？

A: 18AWG has a larger conductor cross-section and can support higher current or longer cable runs with less voltage drop. 20AWG is suitable for shorter extensions and lower-power devices.

问：这条线缆适合在户外使用吗？

A: The standard PVC jacket provides basic protection but is not fully weatherproof. For outdoor installations, it is recommended to use conduit or a weatherproof enclosure.

Q: What devices are compatible?

A: It is compatible with CCTV cameras, DVR/NVR systems, wireless routers, access control devices, LED strips, LED drivers and other equipment using a 5.5*2.1mm DC power jack.

问：你们接受定制订单吗？ A: Yes, we support custom length, wire gauge, jacket color, polarity marking, logo printing and private-label packaging for bulk OEM orders.