OM-07264
S SERIES PUMPS
PAGE B - 8
INSTALLATION
Table B‐4. Pump Power Cable Specifications
Pump
Model
Voltage/
Phase
230/1
A.W.G
Cable
Size
Conductor
Dia.
Inches
(mm)
DC
Resistance
(ohms) at
25
C (77
F)
per 1000 ft.
(305 m)
Cable
O.D.
Inches
(mm)
Amp
Rating
(See
Note
Below)
Cable
Type
S3A
8
NOTE: *
Amp Rating at 30
C (86
F)
Canada Use Type SOW Cable
** Amp Rating at 40
C (104
F)
Voltage
Drop
per 100 ft.
(30,5m) at
Max. Load
'
GGC
.71
3.99
0.97 (25)
0.17(4)
52**
When necessary to change or connect the pump
power cable to the control box, make certain the in
coming power is
OFF
and
LOCKED OUT
, Make
certain the control box is
PROPERLY GROUNDED
and that the electrical data on the control matches
the motor name plate data.
Connect the pump power cable to the control box
as shown in the wiring diagrams in the control box
manual. Use conduit or cable clamps to secure the
power cable to the control box. Make certain that
all connections are tight and that cable entry points
are rainproof.
NOTE
The power cable furnished with the pump includes
three electrical conductors (white, red, and black),
two grounding conductors (green) and one ground
check conductor (yellow)
.
The yellow ground
check lead is used in conjunction with customer‐
supplied ground monitoring equipment. If this
equipment is not used, the yellow lead should be
used as a ground conductor.
Control Box Specifications
Any control box used to operate the
pump must be approved by the Gor
man‐Rupp Company for the application.
Motor Cable Grounding Test
Do not connect the pump control cable
to the control box or incoming voltage
before verifying the pump ground;
otherwise, personnel will be exposed to
serious injury or death.
Using a volt‐ohm meter, connect one lead to the
motor cable green/yellow ground lead. Connect
the other lead to an
uninsulated
point on the pump
body. The test circuit should close.
If the test circuit does not close, there is a defect in
the cable or motor which must be corrected.
Control Box Connections
This pump is shipped completely wired for the volt
age shown on the name plate, and is ready for op
eration through an approved control box.
Ground and wire the control box in accordance
with the instructions accompanying it.
NOTE
For reference, internal motor wiring connections
are shown in the Maintenance and Repair manual.
Liquid Level Devices
The standard pump is
not
furnished with a means
to automatically regulate liquid level. However, the
pump may be controlled to perform filling or dewa
tering functions by using
either
of the following op
tional sensing devices (see Figure B-4):
