3-7
Receiving and Installation
MN715P
230VAC Single Phase Derating for Three Phase Controls
Single phase AC input power can be used to power a three phase control.
However, the continuous and peak current ratings of the control must be
reduced by 35% (derated).
Control
Input Fuse
Wire Gauge
Output
Rating
HP
Fast Acting
Amps
Time Delay
Amps
AWG
mm
2
0.75
10
9
14
2.08
1
12
10
14
2.08
1.5
15
15
14
2.08
2
20
17.5
14
2.08
3
25
25
12
3.31
Note: All wire sizes are based on 75
°
C copper wire, 1% line impedance.
Figure 3-5 Single Phase 230VAC Power and Motor Connections
L1
L2
L1
L2
L3
Earth
AC Motor is not provided with control.
Baldor
Series 15P
Control
Metal conduit should be used to shield output wires
(from T1, T2, T3 of control to T1, T2, T3 of motor).
T1
T2
T3
T1
T2 T3
G
Shield wires inside a metal conduit.
Motor wire should be sized using the 3 phase
information in Table 3Ć3.
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