Enzo, You have a fire waiting to happen with that thin wiring. Look at the wire coming out of your motors. Your supply wiring on your batteries and going to your controller should be AT LEAST twice the diameter. Those alligator clips are also not rated for the amps your drawing. Is that circuit breaker rated for AC or DC use? If an AC breaker, it will trip on lower currents under DC than on AC. You should only use a DC rated breaker, or better yet, a fuse. We've found that breakers will trip just from the bouncing that the vehicle will experience when in use.
Please Google wire gauge size and amperage ratings and do a little reading on the subject. As an example, I'm using six gauge wire in my tank but my system but my motors have an 150A stall current. My controller is rated for 80A per channel. I have a 60A breaker on my supply going to the controller. The motors and controller your using are lower rated (maybe 25A?) and you can get away with lower gauge wire, 12 or 10 gauge. Look for an old heavy duty extension extension cable and strip the wire out of that. DON"T GO TO A LARGER CIRCUIT BREAKER USING YOUR CURRENT WIRING! Steve Tyng On Jan 23, 11:08 pm, Enzo Salas <[email protected]> wrote: > Hi Frank, > > Below are the pictures of my electrical setup. The outer wire diameter > of the Yellow wire is 3mm and the inner(stranded wires)diameter is 1mm > for the Black and Red wires: Outer D: 3mm with inner(stranded > wires)diameter of 2mm. > > http://s1132.photobucket.com/albums/m576/nzosalas/?action=view¤...http://s1132.photobucket.com/albums/m576/nzosalas/?action=view¤... > > I plan to buy a higher capacity circuit breaker as suggested; about > 50amps or more maybe. Maybe I need to lengthen my wires to reduce the > heat? or Parallel them? > > Thanks, > Enzo > > On Jan 24, 3:12 am, Frank Pittelli <[email protected]> wrote: > > > Both the circuit breaker tripping and the wires getting hot are a sure > > sign that your electrical system is overloaded. What size wires are you > > running: > > > a) From the battery to the fuse/breaker > > b) From the fuse/breaker to the switch > > c) From the switch to the speed controller > > d) From the speed controller to each motor > > > and > > > e) what types of connections are used between those points? > > > With answers to those questions, we can spot the problem area and > > recommend a proper solution. > > > Frank P. > > > On 1/22/2011 9:32 PM, Enzo Salas wrote: > > > > Hi, > > > > I use 2 pcs. 12volt 18ah SLA batteries in series for my 2pcs 24vdc > > > scooter motors and I bought this AC circuit breaker with a rating of > > > 30 amps ,but the problem is it automatically turns off after running > > > tank for about 5 mins. > > > > What type or rating of circuit breakers to use? Is it normal for my > > > wires to be hot? > > > > Any form help will be greatly appreciated > > > Enzo > > -- You are currently subscribed to the "R/C Tank Combat" group. To post a message, send email to [email protected] To unsubscribe, send email to [email protected] Visit the group at http://groups.google.com/group/rctankcombat
