Issue with the 12v accessory plug

[Texmac1011]

Mine has a 3 amp fuse and I blew the fuse. I run my GPS and charge cell phones on it.

Is this the right size fuse?
Will putting in a larger fuse hurt anything?

 

[Y Rider]

Mine has a 3 amp fuse and I blew the fuse. I run my GPS and charge cell phones on it.

Is this the right size fuse?
Will putting in a larger fuse hurt anything?

Fuse size is determined by the gauge and length of wire used. If you put in a larger size fuse you may run the risk of overheating the wire and/or connections if the current draw exceeds 3 amps. What is the model of your GPS? Does it state in its specs a power requirement in mA or watts?

Maybe someone could chime in if they know if the stock fuse is supposed to be larger than 3 amps.

 

[GaryTheBadger]

If your wire is 16 gauge, you can safely use a 5amp fuse. If your wire is 14 gauge, you can safely use a 10amp fuse. You are protecting the wire, not the devices.

The following web site is one of many that tell you how many amps can run through a wire depending on its gauge, with examples of device loads that you can add up (or look in the device manual):
http://www.oznium.com/forum/topic15761

 

[JJW SpyderRider]

Fuse size is determined by the gauge and length of wire used. If you put in a larger size fuse you may run the risk of overheating the wire and/or connections if the current draw exceeds 3 amps. What is the model of your GPS? Does it state in its specs a power requirement in mA or watts?

Maybe someone could chime in if they know if the stock fuse is supposed to be larger than 3 amps.

The GS/RS has a 3 amp fuse for the 12V outlet. With my lights, phone, and GPS I decided to add a power distubution box from the battery to get 20 amps. The 12V outlet powers a relay so everything turns on and off with the bike.

 

[NancysToy]

For the RS, 3 amps is the correct fuse size. Although you might be able to sneak up on the size, it would not be reliable, and could create a fire hazard. This circuit has very small, 20 ga wire. What you really need to do is find the reason the fuse blew. The loads you speak of should not be that great. I'd look for a short circuit, or a bad connection that is increasing the circuit resistance, and adding to the load.

 

[bruiser]

For the RS, 3 amps is the correct fuse size. Although you might be able to sneak up on the size, it would not be reliable, and could create a fire hazard. This circuit has very small, 20 ga wire. What you really need to do is find the reason the fuse blew. The loads you speak of should not be that great. I'd look for a short circuit, or a bad connection that is increasing the circuit resistance, and adding to the load.

:agree: Another thing that will blow a fuse is a short spike in current. I've heard of this happening when charging a cell phone that is on.

 

[WackyDan]

Fuse size is determined by the gauge and length of wire used. If you put in a larger size fuse you may run the risk of overheating the wire and/or connections if the current draw exceeds 3 amps. What is the model of your GPS? Does it state in its specs a power requirement in mA or watts?

Maybe someone could chime in if they know if the stock fuse is supposed to be larger than 3 amps.

No it is not. Wire size is a factor more relevant to home wiring and fuse/breaker size than it is in relation to vehicles with fun electronics.

The fuse in the Spyder for the 12v ACC outlet is supposed to be 3 amp. While wire size is still a factor, what also matter is WHAT is driving that 12 volt outlet. Is it another factory relay already on theSpyder ? What is it rated for? Is it a transistor that is switching power when the the bike's ignition is turned on? If so.. What is the rating and tolerance of that transistor?

So be careful what you are trying to achieve by using a different fuse. You might be fine, melt/cook/oxidize the wire feeding it, or damage what is driving that circuit to begin with.

Those with the spyder wiring diagram could tell you for sure.

3amps in DC is 36 watts by the way. If you are blowing that fuse, please do it right, and install a feed straight to the battery (fused) or install a power bus with trigger relay. It is a simple task.

 

[NancysToy]

The RS accessory circuit is fed through main relay #2, which is a conventional relay, not solid state. The relay is rated much higher, and feeds additional circuits and devices.