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Does the voltage matter for a fuse?

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Does the voltage matter for a fuse?

Is the voltage rating important? Yes, very important! The voltage rating of the selected fuse must be greater than or equal to the circuit voltage. Since fuses have such low resistance, the voltage rating becomes critical only when the fuse is trying to open.

What voltage are automotive fuses rated for?

32 volts
Automotive fuses are a class of fuses used to protect the wiring and electrical equipment for vehicles. They are generally rated for circuits no higher than 32 volts direct current, but some types are rated for 42-volt electrical systems.

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Are automotive fuses interchangeable?

A fuse is composed of a housing, fuse element and contacts, and they vary in size and configuration. They come in either blade or cartridge-style. ATO fuses and ATC fuses are regular-sized automotive blade fuses. They are interchangeable, provided the amperage rating is the same.

What happens if you use a higher voltage fuse?

If you use a higher voltage rated fuse the clearing time will be increased above the fuses specification. In the worst case a longer clearing time could result in damage to the power source and wiring, the device being protected, or both.

How do you select a fuse for a circuit?

How to Choose the Right Fuse

  1. Identify the type of voltage that is being protected.
  2. Observe the amperage of the electrical circuit that the fuse will be protecting.
  3. Size the fuse to its particular holder.
  4. Inspect the fuse for internal element replacement.
  5. Use a fuse that has an inspection window.
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Where does the fuse go in a 12v circuit?

Recommended practice is to place the fuse near the positive terminal of the battery, so the whole circuit will be dead if the fuse blows. (Of course, if the positive terminal is considered Ground, place the fuse near the negative terminal.)

What fuse do I need for 12V?

if the device load is known in watts, divide the wattage by voltage-(i.e 100watts divided by 12v = 8.3 amps) -use 10 amp fuse.

Can I use a 12 volt fuse in a 12V circuit?

Using a higher voltage rated fuse is safe, using a lower voltage rated fuse than your circuit may not be a good idea, for reasons other than overcurrent protection. So, yes you are fine using the 12volt fuse.

What size fuse do I need for a 25 amp cable?

>The fuse rating should lie somewhere between these two values to allow normal operation but blow on overload. For example, if the normal expected current draw is 10A and the cable size is 25A, then a fuse rated at 15A would be appropriate.

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What are the different types of fuses used in a car?

The standard blade fuse (also known as APR, ATC or ATO fuses) is the most common with many cars now using the mini blade version (also known as APM or ATM fuses). Maxi blade fuses (also known as APX fuses) tend to be used for higher current or ‘power’ applications and are available in higher ratings.

What is the output voltage of 12V in this circuit?

First, 12V come into ZD1 and R1. They are a Reference voltage of this circuit, 6.8V. Then Q1 increase a current is higher to the output. The output is 6.2V because some voltage is across BE of Q1. If you use BD139 NPN transistor. It can drive current about not over 0.5A. You can change It is TIP41 for 1A output.