the gauge of the wire determines how much amperage a wire can carry
the insulation determines how much voltage the wire can handle
An 18 gauge wire can handle a maximum amperage of approximately 16.5 amps at 12 volts.
The amps that a four gauge wire will handle will depend with the thickness of the wire. If the wire is thin, the four gauge will handle 95 amps.
An 18 gauge wire can typically handle around 16 amps of electrical current.
An 18 gauge wire can typically handle around 16 amps of electrical current.
A 14 gauge wire can typically handle up to 15 amps of electrical current.
For a 500 watt light at 120 volts, you should use a 14-gauge wire to ensure that it can safely handle the load without overheating or causing a fire hazard. This wire gauge is suitable for a maximum continuous current of 15 amps, which is sufficient for a 500 watt load at 120 volts.
You would need to use a #12 copper conductor to continuously draw 14 amps at 120 volts.
5000 watts
For a 5kW heater HVAC system, you would typically need to use 10-gauge wire to handle the current load safely. It's important to always consult the manufacturer's specifications or a licensed electrician to ensure you are using the correct wire gauge for your specific setup.
30 amps.
14 gauge wire is for 15 amp circuits. At 220 volts that would be enough for 2.4 kw.At 120 volts it would need 12 gauge wire which is rated for 20 amps.
A 4 gauge wire can typically handle a maximum amperage of around 100 to 150 amps.