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PAGE 18 — ST-4125D/ST-6125D SUBMERSIBLE PUMPS — OPERATION AND PARTS MANUAL — REV. #1 (06/12/08)
Figure 8. Three Phase
Control Box/Pump System Diagram
ST-4125D/ST-6125D — 3-PHASE POWER INSTALLATION
2. STARTFLOAT
SWITCH. CONNECT
TO TERMINALS 1AND2
3. STOP FLOAT
SWITCH. CONNECT
TO TERMINALS 3AND4
MOUNT CONTROL
BOX IN AN UP-LEFT
VERTICAL POSITION
AS SHOWN.
FLOAT SWITCH
TERMINAL BLOCK
CONTROLLER
M
A
I
N
T
R
I
P
L
3
L
2
T
2
T
1
T
3
R
E
S
E
T
L1
1
L2
3
L3
5
1-
2- 3-
4-
1-
2- 3-
4-
T1
2
T1
2
T3
6
T2
4
AEG
L2
L3
L1
1
3
2
F
U
S
E
T
D
UEL-ELE
FUSE
-
8
/
1
0
F
N
M
M
IC
R
O
N
C
O
N
T
R
O
L
T
R
A
N
S
F
O
R
M
E
R
(7
0
8
)
5
4
7
-0
9
0
0
C
A
T.
N
O
.
B
0
7
5
B
T
Z
1
3
J
K
T
E
M
P
.
1
0
5
7
5
V
A
50/60H
Z
L
IS
T
E
D
7
0
2
X
0
40
2
4
C
L
.
C
U
.S
.
P
A
T
.
N
O
.
3516040
I
m
p
e
r
v
i
T
R
A
N
R
)
(
X
2
X
F
X
1
H4 H2
H3 H1
110
115
120
X
1
H
1
H
2
H
3
H
4
X
F
X
2
1
2
3
4
1
22
0
2
3
0
2
4
0
4
4
0
4
60
4
8
0
4
2
3
3
1
6
1
0
2
5
-
0
2
3
/
0
0
-3
-4
3 PHASE
AC OUTPUT
POWER CABLE
BLACK
FLOAT
SWITCH
INPUTS
3 PHASE
AC INPUT
POWER CABLE
WHITE
AC POWER
TERMINAL BLOCK
1.SECURE FLOAT SWITCH
WIRES TO PUMP
DISCHARGE HOSE
L
1
L
2
L
3
PUMPING
RANGE
SUBMERSIBLE
PUMP
ST-6125D
GROUND
OVERLOAD
RELAY
4
EXTERNAL 3-PHASE
(230 OR 460 VOLT)
POWER SOURCE
CIRCUIT
BREAKER
RED
WHITE
BLACK
L1
L2
L3
GREEN
BLK
MANUAL/AUTO
SWITCH
OFF/ON
LAMP
TRANSFORMER
INSTALLATIONOF THIS CONTROL
BOX IS TO BE PERFORMED ONLY BY
ALICENSED ELECTRICIAN OR
QUALIFIED PERSONNEL.
WARNING
RED
BLK RED WHT
GRN
GRN
HEATER
SEE TABLE 2