Thanks Steve, I'll buy new wires at about 4-5mm in diameter. I just bought a new AC 50 amp breaker, I can't find a DC one, but I will also find some car audio fuse. My controller is rated at 50A per channel MAX.
Regards, Enzo On Jan 24, 7:23 pm, Steve Tyng <[email protected]> wrote: > 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¤...... > > > 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
