power question: does 1 amp make a difference?

hideki

hideki

hideki

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I have a switch, the power input is 12volt 1amp.
Would using a 12volt 2amp cause any kind of damage?

I want to connect the device to my ups and unfortunately the expensive power cable has a 1a difference.
 
Power (Watts) = Potential Difference (Volts) x Current (Amps)

You'd feed twice the power to your device, most likely frying the poor thing or at the very least blowing the fuse off.

- Huw
 
Huw_Dawson said:
Power (Watts) = Potential Difference (Volts) x Current (Amps)
Click to expand...
Correct
Huw_Dawson said:
You'd feed twice the power to your device, most likely frying the poor thing or at the very least blowing the fuse off.

- Huw
Click to expand...
Totally wrong.

The device will only draw the current it requires regardless of what the supply can provide. Think about it, you charge your mobile from a mains socket that's capable of delivering 30 Amps on a ring main, the mobile doesn't draw 30 amps just because the socket can supply it.
 
rpstewart said:
Correct

Totally wrong.

The device will only draw the current it requires regardless of what the supply can provide. Think about it, you charge your mobile from a mains socket that's capable of delivering 30 Amps on a ring main, the mobile doesn't draw 30 amps just because the socket can supply it.
Click to expand...

so i can use the 2a cable?
 
To me, it's not clear what you are trying to do.

If you are only replacing a cable, just ensure the new cable is rated the same or above (for volts and amps) and it will work without problem. In your case it is, and the answer is "yes" (assuming I understood your question correctly).
 
the plan is moving the switch power source from wall socket to ups.

the original cable has a standard type g ac power plug

the new cable has a c14 socket on one end. that will be connected to a ups via c13 power cable.
 
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