How to Choose the Correct Power Supply
for Your Cctv Camera
Share
Share
The importance of a power supply for your video security cameras cannot be overstated. Installers and users should use a high-quality CCTV power supply box to ensure the stability and reliability of their video surveillance system. Image distortion, flickering, and even security camera hardware damage can all be caused by a poor power supply. Outdoor security cameras typically use a 12V DC power source, while PTZ cameras use a 24V AC power supply. Some security cameras may use 220V AC power, and inside security cameras commonly use a 5V DC power supply. You’ll learn how to choose the right power source for your security camera in this post.
Security Camera Power Supply
The most common power supply voltage for security cameras is 12V DC. It isn’t, however, the sole option. Wireless security cameras that are powered by batteries or solar energy are also available.
Inexperienced installers discover that the power capacity is insufficient in real-world installations, necessitating the inclusion of extra power supplies. Because the security camera requires a substantial amount of electricity when it initially turns on, as well as for transmission, calculating the total required power supply does not entail simply adding the rated power of each camera together. The correct way is to multiply the rated power by 1.3 to get the real required power supply for security cameras. You must also account for cable power usage and power budget.
The AC24V power source was chosen since the greater the voltage, the lower the consumption over the same transmission distance. High voltage can provide enough power to the camera. Meanwhile, while debugging security cameras with AC 24V, you can use a sync power supply to sync image vertical frequency across several devices.
How to calculate Power Outage For a Group of Cameras
For optimal results, consider employing a distribution box if you require additional cameras or 8 or 16 channel CCTV camera systems. A security camera power supply distribution box enables you to elegantly route power cables and connect and control the power wire of each CCTV camera without the use of several power adapters. As a result, power supply distribution boxes or splitters would be a better choice for organizing your cameras.
Assuming we have 16 cameras to place in a DVR and that the source will only be used for the cameras because the recorder has its source, we perform the following calculations:
16 cameras at 0.35A (350mA) each:
16 x 0.35 = 5,6A
Considering the maximum 80% capacity:
5,6 / 0,80 = 7A
Repeat the method for the remaining cameras, dividing the connectors that haven’t been used yet. Each pair of connectors (V- V+) in the example above would contain eight cameras. In practice, it’s advisable to buy a power supply with a larger number of connectors to make the installation go more smoothly.
How to Provide Sufficient Power to Security Cameras?
Many cctv camera installers discover that the power capacity is insufficient during actual installation and must add additional power. Because the security camera requires a substantial amount of electricity when it initially turns on, as well as for transmission, calculating the total required power supply does not entail simply adding the rated power of each camera together. CctvThe correct way is to multiply the rated power by 1.3 to get the real required power supply for security cameras. You must also account for cable power usage and power budget.
Consider the following scenario:
If 100 security cameras are installed in a business building, the security camera’s rated power usage is 4W. How do you figure out how much power you’ll need?
Power consumption of security cameras: 4W × 100 units x 1.3 = 520W
The required power rating is after consumption. 520W x 1.3 = 676W
Cable consumption and power budget 676W x 1.3 = 878W
Power Adapter or Power Boxes
A power supply is required for all security cameras. In most security camera systems, power boxes and power converters are employed. Most installers will utilize a power adapter and splitter if installing four or fewer cameras, but a power distribution box from a reliable enclosure manufacturer if installing more than four cameras. When purchasing a power adapter, make sure it meets the voltage and amperage requirements for your cameras.
Security camera installers can use a CCTV power supply box, also known as a security power distribution unit, to concentrate the power source of several cameras to a single location. Wiring becomes neater and easier to manage when used with RG59U siamese cable or video baluns. Instead of having a separate power source for each camera, all of them can be connected to a single power supply box.
The CCTV power supply box is simple to use; simply run your cabling and attach the 2-wire leads from the power part of your Siamese cable to the screw-terminal panel inside the power supply box. After that, connect the power box to a conventional 110V AC power outlet to complete the installation. There’s no reason to keep an outlet close to your cameras. For power distribution boxes, CCTV Camera World offers two output voltages and a wide range of amperage options; please select the one that best fits your cameras.
Battery and Solar Power Supply
Other options for CCTV camera power include non-rechargeable batteries, rechargeable batteries, and solar energy. This group of CCTV cameras has wireless capabilities. As a result, they’re more adaptable than wired cameras that rely on power adapters.
Battery-operated security cameras save you the trouble of drilling a hole in the wall to install a socket and a tangle of wires. Meanwhile, you don’t have to be concerned about security cameras that aren’t powered or finding custom electrical enclosures. We help protect our property and the environment by using solar energy as a security camera’s power source.
What Should Be Avoided When Setting up Power Supply?
When connecting security cameras to a power supply, don’t connect long-distance connected security cameras to the same power supply as near-distance connected security cameras. If connected to the same power source, a high power supply voltage can harm near-distance security cameras, while a low power supply voltage will cause long-distance security cameras to fail. All near-distance security cameras should be connected to a single power source, while long-distance security cameras should be connected to a separate power supply.
Users may utilize higher voltage power supplies, such as 30V, 36V, 48V, or even 220V AC power supplies if the installation distance of security cameras is too long.
Users should avoid using a single or centralized source of electricity. Because of the following reasons:
To fix a video camera system, turn the power supply on and off. All security cameras begin to boot, requiring a large amount of boot current. This will have a significant influence on the power supply, possibly causing damage.
If all of the security cameras are powered by the same power source. When the power source fails, all of the video security cameras will switch off. Especially for some critical access points that you are unable to monitor.
Conclusion
Table of Contents
Also read
NEMA Rating and IP Rating: Explaining the Difference Between the Two Designations
Discover the critical differences between NEMA and IP ratings to make the right choice for your industrial applications. Learn what each rating means, their benefits, and how to pick the right one for you.
Guide to Picking the Right Free-Standing Industrial Enclosure
Unlock the key factors in choosing the ideal free-standing industrial enclosure for your needs. From material to layout, this guide has you covered.
Guide to PLC Cabinets: Types, Layout, Wiring & Components
Explore the essentials of PLC Cabinets: types, layout, wiring, and key industrial-use components.
Guide to IP54 Enclosures: Protection Levels & Standards
Uncover the essential facts about IP54 enclosures. Learn how they protect against dust & water, and understand the compliance standards you need to know.
English 
Spanish 
French 
Arabic 
Japanese 
Korean 
Russian 
German 
Portuguese 
Italian 
