12
TECHNICAL DATA
Table D
Total Resistance of Drop Cable (OHMS)
The values shown in this table are for copper conductors. Values are for the total resistance
of drop cable from the control box to the motor and back.
To determine the resistance:
1. Disconnect the drop cable leads from the control box.
2. Record the size and length of drop cable.
3. Determine the cable resistance from the table.
4. Add drop cable resistance to motor resistance. Motor resistances can be found in the
Electrical Data Chart, Table C.
5. Measure the resistance between each drop cable lead using an ohmmeter. Meter should
be set on Rx1 and zero-balanced for this measurement.
6. The measured values should be approximately equal to the calculated values.
Wire Resistances
DISTANCE FROM
12 AWG WIRE
14 AWG WIRE
CONTROL BOX TO
RESISTANCE
RESISTANCE
PUMP MOTOR (FT.)
(OHMS)
(OHMS)
10
0.03
0.05
20
0.06
0.10
30
0.10
0.15
40
0.13
0.21
50
0.16
0.26
60
0.19
0.31
70
0.23
0.36
80
0.26
0.41
90
0.29
0.46
100
0.32
0.51
110
0.36
0.57
120
0.39
0.62
130
0.42
0.67
140
0.45
0.72
150
0.49
0.77
160
0.52
0.82
170
0.55
0.87
180
0.58
0.93
190
0.62
0.98
200
0.65
1.03
Summary of Contents for Redi-Flo4
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