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6
E
N
G
L
I
S
H
SINGLE PHASE - 1
15 & 230 VAC
POWER CABLE
MOTOR LEADS
Green (Ground) Green
Black Straight Connector
White Straight Connector
Capacitor Flag Connector
Capacitor Flag Connector
C-3.2) Overload Protection:
C-3.2-1) Single Phase - The type of in-winding overload
protector used is referred to as an inherent overheating
protector and operates on the combined effect of temperature
and current. This means that the overload protector will trip
out and shut the pump off if the windings become too hot,
or the load current passing through them becomes too high.
It will then automatically reset and start the pump up after
the motor cools to a safe temperature. In the event of an
overload, the source of this condition should be determined
and recti! ed immediately.
DO NOT LET THE PUMP CYCLE OR RUN IF AN
OVERLOAD CONDITION OCCURS !
If current through the overload exceeds the values listed, an
intermediate control circuit relay must be used to reduce the
current or the overload will not work properly.
TEMPERATURE SENSOR ELECTRICAL RATINGS
V
olts Continuous
Amperes
Inrush
Amperes
110-120 3.00 30.0
220-240 1.50 15.0
C-3.3) Wire Size:
Consult a quali! ed electrician for proper wire size.
See Table for electrical information.
SECTION: D START-UP OPERATION
D-1) Check Voltage and Phase:
Before operating pump check to make sure that the voltage
and phase information stamped on the pump’s identi! cation
plate matches the available power.
D-2) Check Pump Rotation:
Before putting pump into service for the ! rst time, the motor
rotation must be checked. Improper motor rotation can result
in poor pump performance and can damage the motor and/or
pump. To check the rotation, momentarily apply power and
observe the “kickback”. “Kickback” should always be in a
counter-clockwise direction as viewed from the motor end of
the pump (“kickback” is always opposite to impeller rotation).
MODEL
NO
HP
(kW)
V
OLT/
PH
Hz RPM
(Nom)
NEMA
START
CODE
FULL
LOAD
AMPS
LOCKED
ROTOR
AMPS
CORD
SIZE
CORD
TYPE
CORD
O.D
inch (mm)
WINDING
RESISTANCE
MAIN--START
SFU31 1/3 115/1 60 3450 J 8.0 21.0 16/3 SOW 0.395 (10) 2.26 -- 20.34
SFU51 1/2 115/1 60 3450 E 9.5 21.0 16/3 SOW 0.395 (10) 1.54 -- 16.21
SFU71 3/4 115/1 60 3450 D 12.0 28.0 16/3 SOW 0.395 (10) 0.99 -- 16.17
SFU102 1 230/1 60 3450 E 7.0 21.0 16/3 SOW 0.395 (10) 2.81 -- 15.04
2P536 1/3 115/1 60 3450 J 8.0 21.0 16/3 SOW 0.395 (10) 2.26 -- 20.34
2P537 1/2 115/1 60 3450 E 9.5 21.0 16/3 SOW 0.395 (10) 1.54 -- 16.21
2P538 3/4 115/1 60 3450 D 12.0 28.0 16/3 SOW 0.395 (10) 0.99 -- 16.17
2P539 1 230/1 60 3450 E 7.0 21.0 16/3 SOW 0.395 (10) 2.81 -- 15.04
SFU2W2L .19 (.14) 110/1 50 2850 M 6.7 17.5 16/3 SOW 0.395 (10) 2.26 -- 20.34
SFU3W2L .28 (.22) 110/1 50 2850 H 7.9 17.5 16/3 SOW 0.395 (10) 1.54 -- 16.21
SFU4W2L .43 (.32) 110/1 50 2850 H 10.0 23.3 16/3 SOW 0.395 (10) 0.99 -- 16.17
SFU6X2L .58 (.43) 220/1 50 2850 H 5.8 17.5 16/3 SOW 0.395 (10) 2.81 -- 15.04
Pump rated for operation at ± 10% voltage at motor.
Winding Resistance ± 5%,
FIGURE 6
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