What happens to voltage in a series circuit?

In a series circuit, the current that flows through each of the components is the same, and the voltage across the circuit is the sum of the individual voltage drops across each component. If one bulb burns out in a series circuit, the entire circuit is broken.

How does a fuse affect voltage?

The voltage rating of a fuse must be at least equal to or greater than the circuit voltage. It can be higher but never lower. If a fuse is used with a voltage rating lower than the circuit voltage, arc suppression will be impaired and, under some overcurrent conditions, the fuse may not clear the overcurrent safely.

Is the voltage the same in a series circuit?

The sum of the voltages across components in series is equal to the voltage of the supply. The voltages across each of the components in series is in the same proportion as their resistances . This means that if two identical components are connected in series, the supply voltage divides equally across them.

Does a fuse change voltage?

The voltage and current ratings are paramount. A fuse should be de-rated by 25% at room temperature, meaning if there is a 7.5 amp circuit, a 10 amp fuse should be used at 25˚C. Voltage ratings on a fuse can be higher than the voltage on the circuit, but not lower.

What does the voltage rating on a fuse mean?

VOLTAGE RATING:The voltage rating, as marked on a fuse, indicates that the fuse can be relied upon to safely interrupt its rated short circuit current in a circuit where the voltage is equal to, or less than, its rated voltage.

When do you need a series connected fuse?

Where series connected fuses can be useful is when you have a very stiff supply, like say a telecomms battery bank, if you want to fuse something close to the batteries at say 0.1A, you have a problem, because the prospective short circuit current can far exceed the rating of the biggest 0.1A fuse you can find. Lets say you have a PSC of 50kA…

Why are there two series of fuses and breakers?

In this case, you do have 2 breakers/fuses in series, but all breakers/fuses are rated for the full voltage, and the one with the larger current is only there to protect the wires between it and the next, lower current breakers.

What is the circuit diagram for a fuse?

The complete circuit diagram for an electronic fuse circuit is shown below. As shown in the circuit, it involves only few circuits and hence it is easy to construct and implement into our designs. Here the circuit is constructed to monitor the operating current of a motor (LOAD), which operates on 12V.