Travis Chaffin - Sales Manager – 2M CCTV
877-926-2288 x 6049
If the proper power is not supplied to your CCTV equipment, it can cause it to lose signal or in some cases cause your camera(s) to fry! Two essential things to consider include Voltage and Amperage (you also want to keep in mind loss of power like Voltage Drop, which can be calculated here).
That said, we wanted to share with you a quick reference guide and overview regarding the voltage and amperage that powers your CCTV security cameras. Keep in mind, this is a beginner reference guide and does not take into account everything involved with CCTV camera power supply. Each scenario is different, so to get a full understanding of the specifications you require, please give us a call and one of our knowledgeable representatives can help you – 1-877-926-2288
Most of the below data concerning voltage and amperage can be considered for 99% of systems. Cameras will usually use either a 24VAC or 12VDC current.



I have a CMR823HS-CCTV camera and I’m trying to get the wright power to it,
Power supply DC 12v, 500ma and some sights say 700ma The wall outlit is next
to the camera, but the house (run) is 200ft away. When I plug it in, it all most wants to come on. I seen a sight that had the same camera and thay sugested to get a 2000ma power supply. The way that chart looks like. I can go up to 7000ma.. Can you help me I don’t want to fry my cammera it was 119, What do you suggest? And you carry them? Thankyou: John
John,
According to spec sheets I have seen on this unit, it requires 700mA. That means a standard 1000mA power supply should work great. As far as the 200 ft video run, that should not affect the power. I have included a link to one of our power supplies that will work great.
-Travis
Amperage must be controlled in order to protect the electrical lines from overheating or short-circuiting. This is why electricians use fuses and breakers.