ABCDEFGHIJKLMNOPQRSTUVWXYZ
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Calculations Based On Motor HP
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Input DataCalculated Values
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Motor Voltage (V L-L)Operating Current (A)7.6
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Motor HP125% Current per NEC (A)9.5
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Cable Temperature Rating (°C)"Zero Length" Cable Size14 AWG
Conductor Table position based on "zero length" ampacity:
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Ambient Temperature (°C)Acceptable Voltage Drop (V)7.97
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Cable Length (ft)500 Recommended Cable Size12 AWG
Conductor Table position based on voltage drop:
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Acceptable Voltage Drop (%)3.0% Actual Voltage Drop (V)6.46
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Actual Voltage Drop (%)2.4%
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Calculations Based On Specified Current
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Input DataCalculated Values
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Operating Voltage (V L-L)460 "Zero Length" Cable Size14 AWG
Conductor Table position based on "zero length" ampacity:
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Specified Current (A)7.6 Acceptable Voltage Drop (V)7.97
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Cable Temperature Rating (°C)Recommended Cable Size12 AWG
Conductor Table position based on voltage drop:
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Ambient Temperature (°C)Actual Voltage Drop (V)6.46
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Cable Length (ft)500 Actual Voltage Drop (%)2.4%
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Acceptable Voltage Drop (%)3.0%
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2080.507575
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Note: Data entry is only possible in areas highlighted in yellow.
2300.759090
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4601.00
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Conductor ampacities are based on NEC 2008, Table 310.16 (Not more than 3 current carrying conductors in racewary).
5751.5011
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Conductor impedances are based on NEC 2008, Chapter 9, Table 9.
2.00Temperature7575
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33.00
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Voltage4605.0021-2521-25
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7.5026-30 (std)26-30 (std)
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10.0031-3531-35
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15.0036-4036-40
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20.0041-4541-45
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25.0046-5046-50
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30.0051-5551-55
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40.00
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50.00
De-rate factor position
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60.00
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75.00
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100.00
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125.00
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150.00
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200.00
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250.00
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300.00
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350.00
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400.00
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450.00
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500.00
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HP5.00
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