Enter the fusing factor and the current rating of fusing element (amps) into the calculator to determine the Fusing Current.

## Fusing Current Formula

The following formula is used to calculate the Fusing Current.

If = FF * CR

- Where If is the Fusing Current (amps)
- FF is the fusing factor
- CR is the current rating of fusing element (amps)

To calculate the fusing current, multiply the fusing factor by the current rating of the fusing element.

## How to Calculate Fusing Current?

The following two example problems outline how to calculate the Fusing Current.

**Example Problem #1:**

- First, determine the fusing factor. In this example, the fusing factor is measured to be .75.
- Next, determine the current rating of fusing element (amps). For this problem, the current rating of fusing element (amps) is calculated to be 24.
- Finally, calculate the Fusing Current using the formula above:

If = FF * CR

Inserting the values from above and solving the equation with the imputed values gives:

If = .75 * 24 = 18 (amps)

**Example Problem #2: **

Using the same process as example problem 1, we first define the variables outlined by the formula. In this case, the values are:

fusing factor = .85

current rating of fusing element (amps) = 80

Entering these values into the formula or calculator above gives us::

If = FF * CR = 68 (amps)