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Table I: Frequency of Starts
Avg. No. of Starts per 24 Hr. Day
HP Rating
Single Phase
1 to 5
7-1/2 to 30
40 and over
Table II: Weight of Pipe (Column)
Weight per Foot (Lbs)
Pipe Size (In)
2-1/2
3
4
5
6
Table V: Cooling Flow Rates Past Submersible
Motors In Feet Per Second (FPS)
6" Nominal Motor (5.38" OD)
Casing
Size
20
40
60
6" ID
1.2
2.3
3.5
8" ID
–
0.5
0.7
10" ID
–
–
0.3
NOTICE: If flow rate past motor is expected to be less than
rate shown in table, install a shroud around motor to force
cooling flow past shell. To minimize erosion to shell if flow
PREINSTALLATION PROCEDURES AND CHECKS
NOTICE: Some motor/pump combinations require bracing
when hoisting. See the owner's manual for your motor to
determine this. If hoisting a unit with bracing, keep brace
on unit until it is vertical and ready to put in well.
Electrical Splices and Connections
Splices must be waterproof. Make a strong mechanical
bond between the motor leads and the cable to avoid high
resistance at the connection. A poor mechanical con-
nection, or a poorly wrapped splice, can cause motor
problems and motor failure.
Before connecting the motor to the cable, perform a
ground check to assure that the motor has not been
damaged. Attach one end of an ohmmeter lead to any of
the three motor leads and the other ohmmeter lead to the
pump intake bracket. A new motor must have a resistance
of 2 megohms or greater. If not, contact your dealer.
Repeat for all three leads.
Prepare the cable and make the mechanical connections
(Figure 1A) and splices as follows:
1. Cut motor leads and corresponding cable ends at 3-
inch spacings to stagger connections for a smooth
splice.
2. Cut connecting cable to match the motor leads.
NOTICE: Match color coded wires, red to red, black to
black, and white to white.
SPECIFICATIONS
Three Phase
50
150
25
50
–
50
Full
Empty
7.9
5.8
10.8
7.6
16.3
10.8
23.3
14.62
31.5
18.97
GPM
80
100
120
140
4.6
5.8
7.0
8.1
0.9
1.2
1.4
1.6
0.5
0.6
0.7
0.8
Table III: Weight of Cable per 1000 Ft. (lbs.)
AWG
3-Phase
Size
Nom. Dia.
12-3
.500
10-3
.545
8-3
.771
6-3
.965
4-3
1.071
2-3
1.243
Table IV: Cable Wire Resistance
AWG Wire Size
14
12
10
8
6
4
2
160
180
200
220
9.3
10.4
11.6
12.7
1.9
2.1
2.3
2.6
0.9
1.0
1.1
1.3
rate is expected to be more than 10 FPS (especially if sand
is present), reduce flow through pump to reduce flow past
shell.
3 When using a butt connector, expose bare wire for
about 1/2". When using stranded wire, expose about 1"
of wire.
NOTICE: Butt connectors may be used with solid wires
through 8 AWG, or stranded wires through 10 AWG.
4. Clean exposed ends of wire thoroughly with emery
cloth or sandpaper to assure good electrical
connections.
5A.BUTT CONNECTORS (Figure 1A): Insert wires into con-
nector until insulation butts up against connector. Crimp
connector to wires with a pair of crimping pliers. Pull on
cable to make sure the connection is solid and tight.
5B.SOLDERED CONNECTIONS (Figure 1A):
NOTICE: Do not use acid core solder or corrosive
solder paste.
I. Straighten individual cable strands and spread
apart slightly.
II. Clean each strand and push strands of cable into
matching (color-coded) open strands of the motor
leads.
III. Wrap entire length of joint with fine copper wire
until strands are compressed.
IV. Apply heat and solder. Solder will follow the heat;
make sure solder flows throughout the joint. Pull
firmly on cable to test joint.
2
Weight
Nom. Dia.
140
.487
186
.517
328
.750
525
.826
717
1066
Resist (Ohms/Ft)
.0050
.0032
.0020
.0013
.0008
.0005
.0003
Formula to find flow rate:
240
GPM x .409
FPS =
D1
13.9
}
2.8
FPS
D1 = Casing inside diameter
1.4
D2 = Motor outside diameter
1-phase
Weight
130
161
293
400
2
– D2
2
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