Gorman-Rupp Pumps S4A1-E25 460/3 1396155 and up - Manual (Page 14)

OM-06098 S SERIES PUMPS
PAGE B - 6 INSTALLATION
c. Buried electrode: If rock or stone prevents
embedding the full 8 foot (2,4 m) length of the
ground rod, bury it horizontally in a trench.
Space the ground rod or plates at least 6 feet
(1,8) from any other electrode or ground rod,
such as those used for signal circuits, radio
grounds, lightning rods, etc.
The earth surrounding the ground rod or plate
must contain enough moisture to make a
good electrical connection. In dry or sandy
areas, pour water around the rod, or consult
qualified personnel to devise a method of im­
proving the connections.
The electrical power used to operate
this pump is high enough to cause inju­
ry or death. Make certain that the control
box is properly grounded after installa­
tion.
Refer to the literature accompanying the control
box for field wiring connections.
Pump Power Cable Connections
The electrical power used to operate
this pump is high enough to cause inju­
ry or death. Obtain the services of a
qualified electrician to make all electri­
cal connections. Make certain that in­
coming power to the control box is in the
OFF position and locked out, or that the
power supply to the control box has
been otherwise cut off and locked out,
before connecting power or accessory
cables.
The pump is provided with a 50 ft. (15,2 m) power
cable (see Table B-4 for standard power cable
specifications). If a longer cable is required, an op­
tional cable assembly must be ordered from the
factory. Splicing of the power cable is not recom­
mended by the Gorman‐Rupp Company due to
safety and warranty considerations.
Never attempt to alter the length or re­
pair any power cable with a splice. The
pump motor and cable must be com­
pletely waterproof. Injury or death may
result from alternations.
Table B‐4. Pump Power Cable Specifications
Pump
Model
Voltage/
Phase
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
'
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
6 1.01 (26) 0.21 (5) 79** GGC 0.45
2.88
2.34
460/3
575/3
S4A
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.