Gorman-Rupp Pumps SE1 1/2A3A 115V 1P 1483930 and up - Manual (Page 11)

SE SERIES OM−06489
PAGE B − 4 INSTALLATION
Serious damage to the pump and injury
or death to personnel can result from
any alteration to the cable.
Field Wiring Connections (Incoming Power)
The pump is designed to operate with a 115 volt,
1 phase, 60 hertz power supply. The voltage avail-
able at the motor must be within the range indi-
cated in Table B-3.
To calculate the voltage available at the motor, pro-
ceed as follows:
a. Measure the voltage while the pump is oper-
ating at full capacity. See wiring diagrams at
the end of this section.
b. Next, subtract the motor cable voltage drop
(see Table B-4, Pump Power Cable Specifi-
cations).
c. Do not continue to operate the pump if this
voltage is not within the recommended limits.
Obtain the services of a qualified electrician to
determine the correct field wiring size and oth-
er details to ensure an adequate voltage sup-
ply to the pump.
Table B-3. Pump Voltage Requirements
NOMINAL
VOLTAGE PHASE
MINIMUM
VOLTAGE
MAXIMUM
VOLTAGE
1 115 110 120
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 the
pump and receptacle are properly
grounded.
The pump is provided with a 50 ft. (15,2 m) power
cable (see Table B-4 for standard power cable
specifications) with one end wired into the pump
head. The other end terminates in a grounded
power plug. Power to the receptacle must be di-
rected through a fused circuit, and the receptacle
must be controlled by a positive ON/OFF switch.
The use of extension cords is not recommended.
If extension cords are used, they must have three-
wire single phase construction and have adequate
carrying capacity for their length.
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
115/1
A.W.G
Cable
Size
Conductor
Dia.
Inches
(mm)
DC
Resistance
(ohms) at
225
_C (77_F)
per 1000 ft.
(305 m)
Cable
O.D.
Inches
(mm)
Amp
Rating
(See
Note
Below)
Cable
Type
Voltage
Drop
per 100 ft.
(30,5m) at
Max. Load
16 13* SO 5.12 SE1 1/2A3A 0.43 (11) 0.06 (1,5) 4.49
When necessary to service the pump, make cer-
tain the power cable is unplugged from the recep-
tacle.