The amperage rating of the transformer in a 12V power supply cannot be changed. The size of the copper windings determine the power load (amps) it can handle and the point where the lead is tapped off of the windings determine the voltage. The only way to increase the amperage would be to tap closer to the core which would lower the voltage.
If you need more amps you have to have a heavier transformer.
Answer for UK, Europe and countries running a 50 Hz supply service.It is acceptable to connect two 15-amp breakers to a 30-amp supply. It woud also be acceptable in some applications to connect three 15-amp breakers if it were known that the total current would not exceed 30 amps. For example in many UK properties there is a 60-amp supply, and connected to this there are two 30-amp supplies for the ring-circuit and the cooker, plus also a 10-amp lighting supply.
The 12 Amp fuse will take a larger current before it blows (or trips) - than a 10 Amp one.
A fuse is a safety device which is designed to blow (fuse) if a larger current than it is rated for passes through it. So a 10 amp fuse can pass anything up to 10 amps.
You can find a 12 volt 10 amp rheostat at electronic supply stores, online retailers like Amazon or eBay, or specialized electronics component stores. Make sure to check the product specifications to ensure that it meets your requirements for voltage and current.
It is NEVER a good idea to use a higher value fuse. The reason for the 10 Amp fuse is that it blows at 10 amps which the wire and device being protected is designed to handle. If you substitute 15 amps and that amount of current flows in your device, it may destroy the device and other things in the path of the current.
It is one amp current used over one hour. A ten amp hour battery can supply 1/2 an amp for 20 hours, 1 amp for 10 hours, etc.
Answer for UK, Europe and countries running a 50 Hz supply service.It is acceptable to connect two 15-amp breakers to a 30-amp supply. It woud also be acceptable in some applications to connect three 15-amp breakers if it were known that the total current would not exceed 30 amps. For example in many UK properties there is a 60-amp supply, and connected to this there are two 30-amp supplies for the ring-circuit and the cooker, plus also a 10-amp lighting supply.
The maximum current capacity for a 10 wire amp rating is typically around 30 amps.
The 10/2 amp rating for this electrical appliance means it can handle a maximum current of 10 amps and a continuous current of 2 amps.
In how many amps of current before blowing out. 2 amp 5 amp 10 amp 15 amp etc.
Resistance is Volts over Current 11 Ohm = 110Volt / 10 Amp
The 12 Amp fuse will take a larger current before it blows (or trips) - than a 10 Amp one.
I think you mean 2 HP pump. I am assuming a 220 To 240 volt supply and that should equate to about a 12 amp current. All my pumps use only a 30 amp breaker and 10 AWG wire.
A fuse is a safety device which is designed to blow (fuse) if a larger current than it is rated for passes through it. So a 10 amp fuse can pass anything up to 10 amps.
For an RV that requires a 30 amp power supply, a 10-gauge wire should be used to safely handle the electrical load.
You can find a 12 volt 10 amp rheostat at electronic supply stores, online retailers like Amazon or eBay, or specialized electronics component stores. Make sure to check the product specifications to ensure that it meets your requirements for voltage and current.
You risk too much current flow in the circuit. Overloading the wiring can cause a fire.