Connectors

[mathsinstrument]

How many amps can the deans connector take?

When taking into consideration about the size of connectors to use, is it the amps or the watts?
Because Amps X volts = watts.
If a connector can take 50A, does it mean 50A @ any voltage?
10V X 50A = 500w
42V X 50A = 2100w!!!

So which is which?

[Ghostfit]

Hi Mathsinstrument,

Not too sure if commercially available hobby connectors like deans and corraly have Amps/Wattage ratings .....But I know most pple are only interested in the resistances present in these connectors compares to a 4" length of 12 gauge silicone wire.

[helirulz]

How many amps can the deans connector take?

When taking into consideration about the size of connectors to use, is it the amps or the watts?
Because Amps X volts = watts.
If a connector can take 50A, does it mean 50A @ any voltage?
10V X 50A = 500w
42V X 50A = 2100w!!!

So which is which?

My guess would be it that it depends on current only..not watts. Because current refers to the amount of charge(in coulombs) flowing through the circuit ONLY. And NOT the amount of energy each coulomb of charge is carrying(voltage)

voltage is lost as the current flow increases through a circuit according to 'V=IR' rule. Hence the higher the current, you loose more voltage.
So if you wanna run higher currents, you'd need less resistance in your wires/connectors.

However despite all being said, I dont know what is the current rating for Ultra Deans connectors and whether it can take 50amps

[badtzmaru]

Hi Mathsinstrument,

Not too sure if commercially available hobby connectors like deans and corraly have Amps/Wattage ratings .....But I know most pple are only interested in the resistances present in these connectors compares to a 4" length of 12 gauge silicone wire.

Here's my 1 cents worth;

Think the most important is the contact resistance of the connectors, V=IR, voltage is fix (Battery), Current depend on the motor loading, if contact resistance is high, voltage drop accross the connector will be high, Heat generated will also be higher (IR2), hence power loss will be more at the connector.

[Ghostfit]

Here's my 1 cents worth;

Think the most important is the contact resistance of the connectors, V=IR, voltage is fix (Battery), Current depend on the motor loading, if contact resistance is high, voltage drop accross the connector will be high, Heat generated will also be higher (IR2), hence power loss will be more at the connector.

You are right ! ...this is exactly my thoughts !

[Ghostfit]

However despite all being said, I dont know what is the current rating for Ultra Deans connectors and whether it can take 50amps

I have used deans connectors on RC Cars (competition level) running easily 80Amps constant (200Amps surge) at 7.2V with no problems
...This is with the standard dean and NOT the mini deans !