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Answer for USA, Canada and countries running a 60 Hz supply service.
US NEC: 4800 watts is 40 amps at 120 volts, or 20 amps at 240 volts. This can be no more than 80% of the breaker's rated value. You need a 50 amp breaker for 120 volt operation, though 120 volt operation is not advised. You need a 30 amp breaker for 240 volt operation.
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As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.

Before you do any work yourself,
on electrical circuits, equipment or appliances,
always use a test meter to ensure the circuit is, in fact, de-energized.

IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOB
SAFELY AND COMPETENTLY
REFER THIS WORK TO QUALIFIED PROFESSIONALS.
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What size wire and breaker do you need for a 5000 watt garage heater?

Look on the heater and see what amps it is pulling. That will determine the wire size and breaker size. It must be on a dedicated circuit. 15 amps = AWG # 14 wire with 15 amp breaker 20 amps = AWG # 12 wire with 20 amp breaker 30 amps = AWG # 10 wire with 30 amp breaker 40 amps = AWG # 8 wire with 40 amp breaker


What size breaker is needed for a 220 v hot water heater?

A 220V hot water heater typically requires a double-pole breaker rated at 20-30 amps, depending on the specific power requirements of the water heater. Make sure to consult the manufacturer's specifications or a qualified electrician to determine the appropriate breaker size for your specific unit.


How much current would a 5-kW heater draw with 230 volts?

The formula you are looking for is I = W/E, Amps = Watts/Volts. Amps = 5000/230 =21.7 amps. The wire size to run this heater would be a #10 copper conductor. The supply breaker would be a two pole 30 amp breaker.


What is the breaker size for a 10 KVA electric heater?

The breaker size for a 10 KVA electric heater would depend on the voltage it operates at. For example, for a 240V heater, you would need a 41.67 Amp breaker (10,000 VA / 240V = 41.67 A). It is important to consult with a licensed electrician to ensure the correct breaker size and electrical setup for your specific heater.


How many amps needed for a 3000 watt 240 volt base board heater?

A 400 watt heater can safely be used on a 15 amp circuit. The size breaker needed for a circuit is determined by the size of the wiring in that circuit. AWG #14 wire requires a 15 amp breaker. AWG # 12 wire requires a 20 amp breaker.

Related Questions

How many amps breaker you need for a 5000 watts immersion heater?

To answer this question the voltage of the immersion heater is needed. I = W/E.


What size wire and breaker do you need for a 5000 watt garage heater?

Look on the heater and see what amps it is pulling. That will determine the wire size and breaker size. It must be on a dedicated circuit. 15 amps = AWG # 14 wire with 15 amp breaker 20 amps = AWG # 12 wire with 20 amp breaker 30 amps = AWG # 10 wire with 30 amp breaker 40 amps = AWG # 8 wire with 40 amp breaker


What size breaker is needed for a 220 v hot water heater?

A 220V hot water heater typically requires a double-pole breaker rated at 20-30 amps, depending on the specific power requirements of the water heater. Make sure to consult the manufacturer's specifications or a qualified electrician to determine the appropriate breaker size for your specific unit.


How much current would a 5-kW heater draw with 230 volts?

The formula you are looking for is I = W/E, Amps = Watts/Volts. Amps = 5000/230 =21.7 amps. The wire size to run this heater would be a #10 copper conductor. The supply breaker would be a two pole 30 amp breaker.


What is the maximum current rating for the circuit breaker required for a device that operates at 20 amps?

The maximum current rating for the circuit breaker needed for a device that operates at 20 amps is 25 amps.


What is the breaker size for a 10 KVA electric heater?

The breaker size for a 10 KVA electric heater would depend on the voltage it operates at. For example, for a 240V heater, you would need a 41.67 Amp breaker (10,000 VA / 240V = 41.67 A). It is important to consult with a licensed electrician to ensure the correct breaker size and electrical setup for your specific heater.


How many amps needed for a 3000 watt 240 volt base board heater?

A 400 watt heater can safely be used on a 15 amp circuit. The size breaker needed for a circuit is determined by the size of the wiring in that circuit. AWG #14 wire requires a 15 amp breaker. AWG # 12 wire requires a 20 amp breaker.


What is the appropriate size of a breaker needed for a 240-volt circuit that requires a 50 amp breaker?

For a 240-volt circuit that requires a 50 amp breaker, the appropriate size of the breaker needed is 50 amps.


Is 30 amp double pole breaker ok for 4800 watt wall heater?

Yes, a 30 amp double pole breaker would be suitable for a 4800 watt wall heater. Since watts equals volts multiplied by amps, this wall heater on a 240-volt circuit would draw 20 amps (4800 watts/240 volts), which is less than the 30 amp capacity of the breaker.


What size breaker needs to be installed for 15000 watt 240 volt heater?

A 15000 watt 240 volt heater would require a 62.5 amp circuit breaker. To accommodate this exact load, you would typically use the next standard breaker size above 62.5 amps, which is a 70 amp breaker to ensure safety and proper operation of the heater.


What size breakers are needed for two 500 watt baseboards?

Each baseboard heater will draw a little over 4 amps at 120 volts or 2 Amps at 240 volts. The total number of baseboards on a circuit will draw the sum of these amps. Keep the load under 80% of the amperage rating of the breaker.


What's a double breaker 20 amps and 30 amps?

A double breaker is a breaker that has 2 switches on it. One of the switches is 20 amps and the other is 30 amps.