This depends on the type of light source (incandescent, fluorescent, HID...etc) and the size of circuit breaker used. But for 400Watt, the rated current is obviously small (about 2 Amps) and you can use the smallest circuit breaker size and wire you have (typically 10A C.B. with 1.5 mm2 wire, 15A with 2.5mm2).
The ampacity of an 8 gauge wire at 240 volts would depend on the specific type of wire and the installation conditions. Generally, an 8 gauge wire can safely carry around 40-50 amps of current. It is important to consult the National Electrical Code (NEC) and local regulations for precise guidance.
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.
For a 50-foot run with a 6.3-amp load at 240 volts, you can use 14-gauge wire as it can safely handle up to 15 amps. If you want to take into account voltage drop for longer runs, you may opt for even thicker wire like 12-gauge to minimize power loss. It's always a good idea to consult with a professional electrician for accurate recommendations.
12-2 wire typically carries 120 volts in residential settings and 240 volts in certain appliances or systems that require higher voltage.
240 v is dangerous and any rewiring should be done by an electrician who knows the regulations that are there to prevent electric shocks and fatalities..
At the service entrance you will need AWG 1/0 gauge.
30 amps.
A #14 wire will do the job.
10 gauge
AWG # 10.
Depends on the amperage of the Jacuzzi and if it is 120 or 240 volts.
The ampacity of an 8 gauge wire at 240 volts would depend on the specific type of wire and the installation conditions. Generally, an 8 gauge wire can safely carry around 40-50 amps of current. It is important to consult the National Electrical Code (NEC) and local regulations for precise guidance.
10 AWG copper.
Wire sizes are governed by the amperage the wire is to carry. To answer this question the load current is required.
10 mm2 cross section should be sufficient (#6 wire?)
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.
you will need wiring that is at least 10 amp rated wire or higher. If you really needed to ask you might want to call an electrician Electrician here, be the pump 120 volts or 240 volts a #14 wire will handle the situation. Longer runs of 75 feet you should go to a #12 wire to compensate for voltage drop. The pump should be on its own separate circuit with a 15 amp breaker. A two pole 15 amp breaker if the pump is 240 volts.