Using a 10 volt power supply for a 9 volt keyboard is not a good idea. The higher voltage will cause damage to the keyboard, burning it out and making it useless.
A 12v will burn out a 9v keyboard.
yes it is compatible to use 24VAC to 24V supply
No 380 volts is too wide a spread to use a 220 volt motor on.
No, but check the specification on the power bar to see what its maximum voltage rating is. There will be a bit of cord end cutting to get the right configuration for 240 volt equipment.
You run the risk of permanently destroying the device. Some devices have a built-in regulator and can handle a higher voltage (within reason) but many devices don't. So, don't take a chance. Use a voltage regulator or a different power supply.
The RV has a 12 Volt DC power supply that operates all the 12 Volt DC items in your RV when your plugged in to 110 V AC.
The 2wire 2700 and 2701 models both use a 5.1 volt power supply rated 2 or 2.2 amps
no
Not unless you have a 110 volt supply to plug it in to. The standard General Power Outlet in Australia is 240 volts AC at 50 Hertz.
You can use an insulation rating 5000 volt to run 4160 volt supply.
No you can not. The power supply output of 5 volts is under sized. There is no way that a 45 volt device would operate from it. You will need to find a power supply of 45 volts.
On a 120 volt supply, up to 360 watts. On a 240 volt supply, up to 720 watts.