Unless the switch has a pilot light on it there is need for a neutral connection to the switch.
Yes <<>> In North America, a three wire 120/240 volt system uses a neutral wire. For 240 volts two "hot" wires are used with no neutral.
Answer for USA, Canada and countries running a 60 Hz supply service.To operate a 240 volt load in the home you use two adjacent breakers. This will give you a voltage of 240 volts where as one breaker to neutral will give you 120 volts.
On a 120/240 volt distribution the neutral is sized along with the supply conductors. The sizing is based on the amperage of the service distribution.
If you mean 110/240, yes, but there may be a hidden switch to switch it to 240 volt mode. Check the manual.
No, the voltage rating of the switch is too low.
In residential wiring the white wire is neutral on the 120 volt circuits. On a 3way circuit the red is the traveler and the white is neutral. On a 240 volt 3 wire connection the white & black are hot. On a 240 volt 4 wire connection the black and red are hot and the white is neutral.
Use a DPST - A two pole switch.
No. Not safe to do so. The distances between contacts may not be sufficient.
A 10 amp switch connected to a 240 volt circuit can carry up to 2400 watts (10 amps x 240 volts = 2400 watts). It's important to ensure that the switch is rated for the anticipated load to prevent overheating or failure.
A 240-volt circuit typically consists of two hot wires and a ground wire, with no neutral wire. The hot wires each carry 120 volts, while the ground wire is used for safety purposes. In a 240-volt circuit, the hot wires complete a loop by connecting to a load or device that requires the higher voltage to operate.
Question is incorrect. in a 240 Volt single phase circuit, how can you have A phase and B phase?
Power = Amperes x Voltage