To avoid over-heating wire and excessive voltage drop at motor, be sure
wire size is at least as large as size listed in Table 3 for your horsepower
pump and length of wire run.
NOTICE:
See Installation Wiring Diagrams for typical wiring hook-ups
and submersible motor control identification.
INSTALLATION WIRING INSTRUCTIONS
Single Phase, 3 Wire
Hazardous voltage. Can shock, burn, or kill.
Ground submersible motor control, all metal plumbing, and motor frame
with copper wire in compliance with Canadian Electrical Code or
National Electrical Code and local codes. Use ground wire at least as
large as the wires supplying power to motor.
At well head, connect ground wire to grounding terminal that meets
Canadian Electrical Code or National Electrical Code requirements that
apply. For more information, contact local code officials.
Permanently close all unused openings in this and other equipment.
Disconnect power before working on or around submersible motor con-
trol, pipes, cable, pump, or motor.
NOTICE:
Install submersible motor control vertically on wall with top side up.
3-Wire pumps have three power supply wires (Red/Black/Yellow) and
one ground wire (Green).
3 wire pumps will not operate without submersible motor control;
attempting to do so will burn out motor.
Installations must include circuit and component protection in compli-
ance with U.S. National Electrical Code or Canadian Electrical Code,
Part 1.
If main overload trips, look for:
1. Shorted Capacitor
2. Voltage Problems
3. Overload or locked pump.
NOTICE: Use only submersible motor control specified for your
pump. Make sure motor and submersible motor control match
(Table 4).
FAILURE TO DO SO WILL VOID WARRANTY.
For motors of 1-1/2 HP and above, use magnetic
starter to avoid damage to pressure switch. Consult factory for
wiring information.
Single Phase, 2 Wire
2-Wire pumps have two power supply wires (Red/Black) and one
ground wire (Green). Submersible motor control
is not
required.
See Figure 1B for correct hook-up information for 230 Volt
2-Wire
motors
only.
3
NOTE:
1. Maximum wire lengths shown maintain motor voltage at 95% of
service entrance voltage, running at maximum nameplate
amperes. If service entrance voltage will be at least motor name-
plate voltage under normal load conditions, 50% additional length
is permissable for all sizes.
2. Sizes given are for copper wire. For aluminum wire go two sizes
larger (i.e., if table lists #12 (3mm
2
) copper wire, use #10 (5mm
2
)
aluminum wire.)
Volts
HP
14
12
10
8
6
4
3
2
1
0
(2mm
2
)
(3mm
2
)
(5mm
2
)
(7mm
2
)
(13mm
2
)
(21mm
2
)
(25mm
2
)
(34mm
2
)
(41mm
2
)
(50mm
2
)
115
1/2
104
165
262
416
662
1,052
1,327
1,672
2,109
2,659
(31.7)
(50.3)
(79.9)
(126.
8
)
(201.
8
)
(320.6)
(404.5)
(509.6)
(642.
8
)
(
8
10.5)
1/2
400
650
1,020
1,610
2,510
3,
88
0
4,
8
10
5,
88
0
7,170
8
,720
(121.9)
(19
8
.1)
(310.9)
(490.7)
(765)
(11
8
2.6)
(1466.1)
(1792.2)
(21
8
5.4)
(2657.9)
3/4
300
4
8
0
760
1,200
1,
8
70
2,
8
90
3,5
8
0
4,370
5,330
6,470
(91.4)
(146.3)
(231.6)
(365.
8
)
(570)
(
88
0.9)
(1091.2)
(1332)
(1624.6)
(1972.1)
230
1
250
400
630
990
1,540
2,3
8
0
2,960
3,610
4,410
5,360
(76.2)
(121.9)
(192)
(301.
8
)
(469.4)
(725.4)
(902.2)
(1100.3)
(1344.2)
(1633.7)
1.5
190
310
4
8
0
770
1,200
1,
8
70
2,320
2,
8
50
3,500
4,2
8
0
(57.9)
(94.5)
(146.3)
(234.7)
(365.
8
)
(570)
(707.1)
(
8
6
8
.7)
(1066.
8
)
(1304.5)
2
150
250
3
8
0
620
970
1,530
1,910
2,360
2,930
3,620
(45.7)
(76.2)
(11
8
.9)
(1
8
9)
(295.6)
(466.3)
(5
8
2.2)
(719.3)
(
8
93.1)
(1103.4)
Table 3: Power Supply Wire (Cable) Length in Feet (M)
1 Phase, 2 or 3 Wire Cable, 60 Hz (Copper Wire Size - Service to motor)
Motor Submersible
Motor
HP
Voltage
Number
Control Number
1/2
230 TES-00460053
SMCT-CR0521
3/4
230 TES-00460370
SMCT-CR0721
1
230
TES-00461320
SMCT-CR1021
1-1/2
230
TES-00461965
SMCT-CR1521
L1 M1
M2
L2
Sub.
Motor
Control
L1L2R Y B
Fused
disconnect
switch
115V or
230V Line
Ground
Red
Yellow
Black
Pressure
switch
Well
casing
Ground
699 0993
L1
M1
M2
L2
Fused
Disconnect
Switch
To Line
Ground
Red
Black
Pressure
Switch
Well
Casing
Ground
(Green)
336 1093
Table 4: Submersible Motor Control Chart
Figure 1A – 3 wire - 1/2 thru 1 HP submersible
motor control.
Follow color coding when connecting submersible motor control.
(Yellow to Y, Red to R, Black to B)
Figure 1B – Single phase, 2 Wire Connections.
