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Three Phase Wire Size and Protection Devices
Table 3-4 Wire Size and Protection Devices - 3 phase
Control
Control
Rating
Input
Output HP
Volts
230
1
230
1.5
230
2
230
3
230
5
460
1
460
1.5
460
2
460
3
460
5
460
7.5
460
10.0
Note: All wire sizes are based on 75°C copper wire, 1% line impedance.
Figure 3-3 Three Phase AC Power and Motor Connections
A1
*Optional
Line
Reactor
A2
3-5 Receiving and Installation
Fast Acting
Amps
6
8
12
15
25
3
4
5
8
12
17.5
20
L1
L2
L3
Earth
B1
C1
B2
C2
L1
L2
L3
Baldor
Series 15P
Control
T1
T2
T3
T2 T3
T1
G
Input Fuse
Input Fuse
Time Delay
Amps
5
7
9
12
20
2.5
3.5
4.5
6.3
10
15
17.5
*
Optional components not
provided with 15P Control.
Shield wires inside a metal conduit.
Metal conduit should be used to shield output wires
(from T1, T2, T3 of control to T1, T2, T3 of motor).
AC Motor is not provided with control.
Wire Gauge
Wire Gauge
AWG
mm
2
14
2.08
14
2.08
14
2.08
14
2.08
12
3.31
14
2.08
14
2.08
14
2.08
14
2.08
14
2.08
14
2.08
12
3.31
MN715P
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