It basically comes down to this. This may not provide a convenient branch-circuit total load, but it avoids the risk of trying to use a clamping ammeter on live wires inside a breaker panel. For example, a light bulb with a resistance of 3 ohms, in a 12 volt system, consumes 4 amps. Check the voltage on the circuit. If you're working on your boat's sound system a circuit breaker might be a better idea. These fuses are available in current ratings between 10 and 80 amps. A fuse will take varying times to blow under different conditions.
If the fuse reads something significantly higher than 0v, remove the fuse and check it out of the circuit. Often the power consumption of a component will be stated in watts, which are found by multiplying amps and volts. Fuseclips can be inserted into a printed circuit board. . What happens many times is that a component fails often an output transistor and the fuse blows.
A 4g wire can handle about 125 amps. This will introduce resistance that will cause heating. When this happens, see if there is a short circuit or a disconnection, then install a new fuse of the correct amperage rating See. If it blows the fuse at very low volume, there is most likely a shorted speaker or a short in the wiring. The fuse protects the remaining length of wire. Bosch type fuses usually use the same color-coding for the rated current. Each circuit breaker should have its amperage marked on the handle.
Remember: when in doubt, go a gauge bigger. Go to the dealer service dept, and ask them to photocopy the diagram out of their wiring diagram book. Wire and cable sizes are classified by the maximum amperage that they can carry safely. All of the fuses in your car will use one of these three types. Touch the probes together to see what the meter reads.
The Maximum Overcurrent Protection is the highest circuit breaker amperage allowable. The information on this plate will help you determine how many amperes the device draws, and therefore the rating you will need for the circuit breaker. Check the device's voltage rating. Too many people use the excuse that they didn't have a fuse holder when they were installing their equipment so they installed it without a fuse. This isn't really important if you're simply replacing a fuse that has blown with the same type.
They don't think that something just might have changed which is now causing the amplifier to pull significantly more current. Each circuit breaker has a specific rated amperage, or amount of current. Many cars have a second fuse box inside the engine compartment. It's also supplied power by the distribution block. That's a very long way of saying that you can use a very small-diameter wire -- one with more ohms of resistance -- to carry current for a short distance, but that you'll need a larger-diameter wire if you want to carry the current farther away. If you install it with the terminal nearest the red wire in the hot side of the fuse slot, it's going to be a bit safer because you will pull current through both fuses and if the main fuse the one nearest the terminals on the tap is the original fuse size, you will never be able to pull too much current through the wiring in the vehicle.
If your amplifiers would intermittently draw 200 amps, the fuse probably would not blow. To avoid confusion, each wire is colour coded but only within the car: there is no national or international system of colour-coding. Even without heat the appliance can draw enough amps of power to short the circuit. This will reduce the chance that the terminals will pull off of the fuse. To test a circuit, expose the wire leading to the load side of a circuit breaker. This type of fuse is commonly used in older vehicles and mains powered equipment.
The circuit breaker protects the wiring of the electrical supply. Nobody needs a fire in the dash caused by an overloaded power feed and under-sized wiring. The body is connected to the earth terminal of the battery by a thick cable. That means that they opened in the middle of the element where it could clearly be seen in the viewing window. Using a good quality fuse in an open type snap in fuse holder will very likely work precisely as it should with little or no chance of overheating. One or the other will eventually melt if too much current is drawn.
The side and tail lights, however, which you may need to leave on when the car is parked, are always wired independently of the ignition switch. Without help, people will struggle to get good images. You simply need to safely get the B+ 12v line from the battery to the amplifier. The total current available is governed by the size of battery and charging system. This bundle of wires stretches over the length of the car, with single wires or small groups of wires emerging where necessary, and is called the wiring loom.