Test Fuse Calculator

Calculate time fuse length, circuit fuse size, or inverter battery fuse from burn time, current, power, voltage, and load factors.

Choose a tab, enter values, then calculate.

Time Fuse

Circuit Fuse

Battery to Inverter

Test length

Test burn time

Desired burn time

Result length unit

Input type

Circuit current

Circuit power

Circuit voltage

Fuse sizing factor Wire size max fuse check

Inverter continuous power

Battery bank voltage Inverter efficiency

Fuse sizing factor Optional inverter surge multiplier Wire size max fuse check

Time Fuse Length Formula

The following formula is used to calculate the Time Fuse Length.

DL = TL / TT * DT

Variables:

to calculate time fuse length, divide the test length by the test time, then multiply by the desired time.

The following steps outline how to calculate the Time Fuse Length.

First, determine the test length (inches).
Next, determine the test time (seconds).
Next, determine the desired time (seconds).
Next, gather the formula from above = DL = TL / TT * DT.
Finally, calculate the Time Fuse Length.
After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem:

Use the following variables as an example problem to test your knowledge.

test length (inches) = 36

test time (seconds) = 180

desired time (second) = 270

DL = TL / TT * DT = ?