Is It Safe to Install a Dash Cam to the Fuse?
2 Answers
It is safe to connect a dash cam to the fuse box. Below is a partial introduction to the power supply methods for dash cams: 1. Fuse box power supply: The wiring is long but concealed. It can be connected to the ACC power supply of the fuse box, using a fuse and grounding wire, which provides good safety without hidden dangers. 2. ACC power supply: This refers to the state before the car is started. If there is a key ACC position, simply turning the key to this position will power some devices with relatively low power consumption, such as the radio or cigarette lighter. When the car is turned off, the ACC power will be cut off.
I think connecting a dash cam to a fuse can be very safe, as long as you understand some basic circuitry. The role of a fuse is to melt and cut off the circuit when the current is too high, protecting the equipment from being damaged. If installed properly—for example, using a dedicated voltage-reducing cable to match the voltage and selecting a fuse position with an appropriate current rating (generally recommended between 5A and 10A)—there should be no issues. I often wire it this way myself: first, turn off the power, use a multimeter to test the fuse's amperage, and ensure the dash cam's power consumption won’t overload the circuit. Once installed, regularly check the plugs and wiring for looseness to reduce the risk of short circuits or fires. However, if you randomly pick a fuse slot and force it in, it can easily lead to repeated fuse blowouts or even circuit damage. I recommend beginners check the vehicle manual first or ask a knowledgeable friend for help. There are no major safety concerns as long as you operate correctly.
