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PAGE 16 — ST-4125D/ST-6125D SUBMERSIBLE PUMPS — OPERATION AND PARTS MANUAL — REV. #1 (06/12/08)
ST-4125D/ST-6125D — CONTROL BOX WIRING DIAGRAM
Figure 7. Control Box Wiring Diagram
L1
THREE PHASE WIRING
CONNECTIONS
EXTERNAL 3-PHASE
(230 OR 460 VOLT)
POWER SOURCE
CIRCUIT
BREAKER
RED
WHITE
BLACK
L1
L2
L3
GREEN
GROUND
G
ON
INDICATOR
LAMP
M
A1
A2
43 2
3
4
1
STOP
FLOAT
SWITCH
START
FLOAT
SWITCH
TERMINAL
BLOCK
CONTACTOR
5HP
L2
L3
PUMP
MOTOR
T1
T2
T3
O/L
M
CB-12/CB-14
POWER
INPUT
L1
L2
L3
GRN
BLK
H3
H2
H1
H4
50VACPT
CONTROL
TRANSFORMER
X1
X2
F1
FUSE
1/2 AMP
XF
1
BLK
OFF
4
MAN
AUTO
2
NO
WHTAWG 10
X2
NC
OVERLOAD
RELAY
SEE TABLE 2
FOR CORRECT
HEATER SELECTION
O/L
WHT
GRN
RED AWG 8
RED AWG 8
RED AWG 8
WHT
AWG 10
RED
AWG 10
RED
AWG 10
RED
AWG 10
FUSE
X2
XF
X1
H4 H2 H3 H1
110
115
120
X1
TRANSFORMER
SELECTABLE 230 OR 460 VAC
VOLTAGE INPUTS
H1
H3
H2
H4
230V INPUT
L1 L2
JUMPER
TAB
H1
H3
H2
H4
CB-12
460V INPUT
L1 L2
CB-14
RED
WHT