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I need to know the fuse size for my Memphis 16-ST150

I just need to know the fuse size required for this AMP. The fuses keep blowing (immediately) and I've changed them three times now, using different sizes each time. There doesn't seem to be anything wrong with the AMP or the wires running to it.

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6ya6ya
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Posted on Jan 02, 2017

  • 883 Answers

SOURCE: what size fuse do i need for amp

start with a 50, may need to increase it if you are not using a large capacitor.
600 watts = 12x
x= 600 watts / 12 volts
x = 50 amps

Posted on Dec 13, 2007

  • 2 Answers

SOURCE: car amp blows 12 volt wire fuse

the wire from your battery is blowing fuses? and you are using 20-30 A fuses? mine has a 100A fuse..look into getting new wire plus my wire is 4 gauge.., 1600 watts is too powerful for a 12 g wire and a 30 A fuse

Posted on Nov 18, 2008

  • 12 Answers

SOURCE: Jensen LXA400 Fuse Size and RCA hook up for 2 channel mode?

take it to a stereo shop. there are variables you may not be aware of when hooking up speakers to an amplifier like ohms, very important!

Posted on Dec 10, 2008

reynosaelect
  • 165 Answers

SOURCE: my memphis amp keeps blowing fuses,what could be

probably is got a short on the power supply inside of the amplifier.

Posted on Mar 19, 2009

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Can I use a 175 mega amp fuse to replace s 125 mega amp fuse???


NO. Do not run any fuse larger than is specified in any circuit. The specified number is the number of amps at which the wire changes from getting warm to MELTING. That number is just a few degrees short of GLOWING which is followed by CATCHING FIRE.

If you are in an emergency, you can usually safely go 5 or 10% temporarily. IE you need a 120a fuse, and t5he parts store only has 130. Thats less than 10%, its PROBABLY OK temporarily (Though youd be better off going low to 115 or 110! Safer!). If you put in too large a fuse and nothing is immediately wrong, youll think its fine. But when/if something does go wrong, you can destroy parts or the entire car can catch fire. The original sizes are what is designed to prevent this, please dont oversize fuses. The wires werent designed to handle it, and the components should need it. if a radio or a fuel pump or an alternator requires a 15a fuse, and that keeps blowing, but a 20 is OK...its really NOT OK! There is 33% more amperage and more heat flowing in those wires that wasnt designed to be handled. Something is already broken and is getting hot...its gonna break worse! And now with the oversize fuse, the wiring now is allowed to reach a current level way larger than it was designed to, that can light the wire ON FIRE without blowing the fuse! WHich means it will keep burning even after it starts!

Dont do it.

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2001 ford escape interior instrument cluster and rear fuse keeps blowing. Have changed it three times in a week. Works for a bit then blows again.


There is an electrical fault that causes the fuse to blow. Maybe a wire has chafed against the metal body and vibrations causes it to short out the fuse. This requires checking the wiring from the instrument cluster to the fuse box for worn insulation etc.

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If the fuse blows on different trailers then it's all down to the vehicle. You either have incorrect wiring on the vehicle, a short OR the fuse is not of a high enough value to cope with the additional brake lights? You could try removing all the trailer bulbs EXCEPT the brake lights - e.g. if it's trying to power up the indicators too? That would stop the fuse blowing...... OR remove the brake bulbs from the vehicle & see if it operates the trailer without blowing...... Check the total wattage of ALL the brake lamps & see if the fuse is actually of a high enough rating? Be aware though that increasing the value of the fuse could cause damage elsewhere! As a rough guide a 25 watt bulb will pull around 2 amps at 12 volts - so 4 bulbs may pull up to 8 amps & clearly blow a 5 amp fuse! If in doubt take it to an auto electrician...... The wiring needs to be correctly protected!

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This is common about this time on these Camrys. I own three. The AM2 fuse is blowing because a coil, capacitor, or supressor has gone bad in the distributor. To test this disconnect the two wire connectors to the distributor. Replace the AM2 fuse. Turn the ignition. If the fuse doesn't blow. The distributor.

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Hi Jeff , in what fuse box is this 10 amp ign. fuse located ? I am looking at a power distribution diagram and i see a IGN 3 10amp fuse located in the I/P fuse box ! Is this the fuse that blows ? I see where you replaced the 10 amp with a 30amp . That is never a good idea , you don't want to make your problems worst . Melt wiring harness , could start a fire . Do you know how to do electrical trouble shooting ? How to use a wiring diagram , power distribuition diagram ? That fuse is hot in the run , powers the rear Heat / A/C , automatic level relay, ESC - electronic suspension control module , rear wheel steering control module , Plus someother thing's depending which vehicle , Y91 - ULT . Your Taho doesn't have all this options . http://www.bbbind.com/free_tsb.html find the thing's that fuse powers , disconnect them one at a time till the problem goes away .

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1 Answer

I have a 1994 Isuzu 3.2v6 Trooper or Bighorn which is called in Japan. The 7.5 amp fuse started to blow recently. Sometimes it'll work for a few days and sometimes it keeps blowing the fuse. The three...


whatever this fuse controls is drawing too much power, you need to know exactly what this fuse is for before you can find the problem,it may be the fuse for more than one thing.......hope this helps........cheers.

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1 Answer

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Not unless you are willing to risk electrical damage or a fire! A fuse is a protection device that is designed to blow if the amp load in a circuit exceeds the "safe" limit for that circuit. Fuses are built with a specific amp rating which is marked on the fuse. The wiring and design load of the circuit dictates the size of fuse that's required to protect the circuit. Circuits that draw a lot of power need fuses with high amp ratings (20 or 30 amps) while those that use minimal power require smaller fuses (5 to 15 amps).

When the current in a circuit exceeds the normal limit for whatever reason, the metal element in the fuse melts and opens the circuit stopping the flow of current. A short, for example, causes a runaway electrical current. If not stopped, wires can start to melt and things can catch on fire. So respect the amp ratings specified for fuses (which can usually be found in your vehicle owners manual, on the fuse block itself or a fuse block reference decal).

What happens if you install a fuse with the wrong amp rating? If you install a 20 amp fuse in a circuit designed for 10 amps, you're asking for trouble. A difference of 10 amps might not sound like much, but it may be enough to fry a sensitive electronic component or to overheat wires to the point where the insulation may start to melt.

WARNING: Under no circumstances should you ever bypass or eliminate a fuse. No electrical circuit should ever be operated without fuse protection. This is extremely dangerous, especially if you've had problems with a fuse blowing before.

If a fuse keeps blowing, it usually means something is amiss in the circuit. The wiring should be checked along with the components in the circuit to determine if there's a short or other problem.

The fuse for the windshield wiper circuit, for example, may blow if ice or debris builds up in the cowl areas and interferes with the movement of the wiper arms. If a fuse blows in a motor circuit (heater blower motor, cooling fan motor, power seat or window, electric fuel pump, etc.), it often indicates a shorted motor. If a fuse in a light circuit blows, look for wiring or connector shorts. Adding driving lights may also overtax the headlight circuit unless a separate circuit is provided for the driving lights. An A/C fuse will blow if the system is low on refrigerant and is working unusually hard, or if the compressor is hanging up. Stereo systems with high amp boosters should also have their own electrical circuit with fuse protection to avoid overloading the normal radio circuit.

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More than likely you have an internal fault either in the fan itself or the thermostat that activates it.

For a fuse to blow it has to have a lot higher than normal current draw through it, which is normally refered to as a short. If the fuse blows almost immediately then I would suggest you unplug the fan, and see if the fuse blows with just the thermostat in the circuit. If it blows - replace the thermostat control. If it doesn't blow, plug in the fan and watch it. If it trys to start and then blows the fuse, replace the fan motor.

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This appears to be a common problem with this amp. Putting a smaller fuse will only cause it to blow easier...not sure what Ibanez techs were thinking. Mine blows with 500mA fuse...usually because failing to let it warm up the 30 seconds with standby switch off. I have used .75A-250V fuse and it eliminates the problem. Note: it also defeats the purpose of the fuse and leaves the circuit unprotected....voids warranty/fire risk/ shock risk/world will end, etc. I don't recommend using higher rated fuses but it appears that portion of the circuit draws more than the 1/2 amp fuse can handle.

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