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First, a fuse with a current rating, 30 amp, is designed to allow current to flow thru the circuit or equipment or part of your car that uses or requires 30 amps and actually a bit less. If the current in the circuit, wires etc exceeds 30 amps, the fuse will open (a metal strip that burns some call it blown but it is actually an open so the excess current cannot damage the circuit or wiring it is associated with. Now, there are basic formulas you can use to calculate wattage (actually Power P) which would be the power rating let's say for the equipment you may be asking about. If your circuit is designed to use say 30 amps and it's in a car (12volt battery) the general formula would be P=IV=30x12=360w. If the equipment has a power rating and you have 12v then I (current)=P/V. The equipmet could be considered a Load (resistance R), you can calculate the current that would be drawn or used in the circuit by P=V2/R (that's V squared not x2) or P=I2R(I squared, not times 2). You can transpose ohms law to find R (the Load) Where V=IR so R=V/I.
That's the best I can do not knowing more.
What else can I help you with?
What is the maximum amperage capacity of a 30 amp fuse box?
The maximum amperage capacity of a 30 amp fuse box is 30 amps.
How many watts can a double 30 amp breaker switch handle?
The maximum wattage that a 30 amp breaker can handle is 30 x 230 = 6900 watts. Other variables come into play and this number will decrease depending on the load, duty time, and difference in voltage fluctuation.
Can you put a 30 amp fuse in a 10 amp slot?
Not a good thing to do! If you are blowing 10 amp fuses, you have a problem with that circuit. Putting a 30 amp fuse in its place can do more damage.
How thick is a 30 amp fuse wire?
A 30 amp fuse wire typically has a diameter of around 0.08 inches (2 millimeters).
What amp fuse is required for the heater fan in a 1978 Chevrolet Impala?
A 30 amp fuse is required.
1965 Chevy impala ss fuse box what amp is the fuse for the tail lights?
The 1965 Chevrolet Impala SS fuse box requires a 20 amp fuse for the taillights. A 30 amp fuse can be used when a 20 amp fuse is not available.
What does 30 amp CB fuse mean?
circuit breaker fuse
What is the 30 amp rdi fuse in a Lexus ls 400 fuse box?
What is the 40 amp RSI fuse in a Lexus rx 300 fuse box
What amp fuse do you use for a 1993 cavalier Z24?
This is a unclear question, and not easy to answer. In your fuse panal, their will be a range of fuses, from 5 amp, up to 30 amp. On your fuse panal cover, should be a digram of your fuse panal, and which amp fuse goes into which slot.
Will a relay with a 40 amp rating function properly in a circuit with a 30 amp fuse?
Yes, a relay with a 40 amp rating can be used in a circuit with a 30 amp fuse. The fuse is designed to protect the circuit from overcurrent, while the relay's rating indicates the maximum load it can handle. As long as the total current drawn by the circuit does not exceed the fuse rating, the relay should function properly.
What colour goes to fuse in American wire?
The standard color coding for fuses in American wire is as follows: 15-amp fuse: blue 20-amp fuse: yellow 30-amp fuse: green
Can a 25 amp fuse replace a 30 amp fuse in a central ac unit?
It is not recommended to replace a 30 amp fuse with a 25 amp fuse in a central AC unit. The fuse should match the specified amperage requirements to prevent damage or overheating of the unit. Using a lower amp fuse could potentially lead to electrical issues or failure of the AC unit.
