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If the heater is RATED at 5kw and is DESIGNED for 240v, it will draw 20.8 amps if 240v is applied.

I say it this way because you probably will not have exactly 240v. You may have as little as 220v or as much as 250v and still successfully operate this heater. But the difference in voltages would give you different currents.

For USA, Canada and countries running a 60 Hz supply service...

In general practice you would connect this heater to a 30amp 2-pole breaker using #10 gauge wire.

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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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13y ago
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Wiki User

11y ago

The formula you are looking for is A = W/V. Amps = Watts/Volts.

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Wiki User

15y ago

Watts = Amps x Volts. Amps = Watts/Volts, 1000/240 = 4.16 amps

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14y ago

at 120 volts = 42 amps

at 240 volts = 21 amps

if you need a licensed electrical contractor you can find one at www.contraxtor.com

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Wiki User

12y ago

Divide the power by the voltage: 20,000 divided by 240 is 83.333 amps.

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Wiki User

15y ago

Watts = Amps x Volts. Amps = Watts/Volts, 5000/240 = 20.8 amps

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Wiki User

13y ago

5.5kw =5500 divided by 240= 22.92 amps

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Anonymous

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4y ago

how many amp does 20 kw heat st draw

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Anonymous

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4y ago

60

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Anonymous

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4y ago

20

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Q: How many amps would a 7.5 kw heat strip draw at 240 volts?
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