Technical Information

Electrical Charts and Conversions

Ohm's Law

Ohm's LawOhm's Law

Percent Rated Watts on Reduced Voltage

230-volt heater on 208 volts - 82%
240-volt heater on 208 volts - 75%
480-volt heater on 277 volts - 33%
480-volt heater on 440 volts - 84%
480-volt heater on 318 volts - 44%
550-volt heater on 480 volts - 76%
 

Percent Rated Watts on Reduced Voltage

W2 = New wattage output
W1 = Rated wattage
e2 = Applied voltage
e1 = Rated voltage


 Three Phase Circuits Diagram Three Phase Circuits Diagram

Wattage Change with Voltage Change

Wattage Change with Voltage Change GraphWattage Change with Voltage Change Graph

Amperage Conversion Table

Watts Volts - Single Phase Volts - 3-Phase
Balanced Load
  120 240 480 240 480
100 .83 .42 .21 .24 .13
150 1.25 .63 .31 .36 .18
200 1.67 .83 .42 .49 .25
250 2.08 1.04 .52 .61 .30
300 2.50 1.25 .63 .73 .37
350 2.92 1.46 .73 .85 .43
400 3.33 1.67 .84 .97 .49
450 3.75 1.88 .93 1.10 .55
500 4.17 2.08 1.04 1.20 .60
600 5.00 2.50 1.25 1.45 .73
700 5.83 2.92 1.46 1.70 .85
800 6.67 3.33 1.67 1.93 .97
900 7.5 3.75 1.87 2.17 1.09
1000 8.33 4.17 2.10 2.41 1.21
1100 9.17 4.58 2.30 2.65 1.33
1200 10.0 5.00 2.51 2.90 1.45
1250 10.4 5.21 2.61 3.10 1.55
1300 10.8 5.42 2.71 3.13 1.57
1400 11.7 5.83 2.91 3.38 1.69
1500 12.5 6.25 3.12 3.62 1.82
1600 13.3 6.67 3.34 3.86 1.93
1700 14.2 7.08 3.54 4.10 2.05
1800 15.0 7.5 3.75 4.34 2.17
1900 15.8 7.92 3.96 4.58 2.29
2000 16.7 8.33 4.17 4.82 2.41
2200 18.3 9.17 4.59 5.30 2.65
2500 20.8 10.4 5.21 6.10 3.05
2750 23.0 11.5 5.73 6.63 3.32
3000 25.0 12.5 6.25 7.23 3.62
3500 29.2 14.6 7.30 8.45 4.23
4000 33.3 16.7 8.33 9.64 4.82
4500 37.5 18.8 9.38 10.84 5.42
5000 41.7 20.8 10.42 12.1 6.1
6000 50.0 25.0 12.50 14.50 7.25
7000 58.3 29.2 14.59 16.9 8.5
8000 66.7 33.3 16.67 19.3 9.65
9000 75.0 37.5 18.75 21.7 10.85
10000 83.3 41.7 20.85 24.1 12.1
INDUSTRY-NET-PREFERRED-SUPPLIER-LOGOINDUSTRY-NET-PREFERRED-SUPPLIER-LOGO
INDUSTRY-NET-PREFERRED-SUPPLIER-LOGOINDUSTRY-NET-PREFERRED-SUPPLIER-LOGO
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