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ST4125G/ST6125G SUBMERSIBLE PUMP• OPERATION MANUAL — REV. #0 (11/18/10) — PAGE 17
230/460 VAC Voltage Selection
The ST4125G/ST6125G submersible pumps are factory
set at 230 VAC. To change the voltage from 230 VAC to 460
VAC, reference Figure 8:
T2
T1
T3
T4
T7
T5
BLACK
BLACK
GREEN
GROUND
RED
WHITE
BLACK
T4
T7
T8
T5
T6
T9
T1
T2
T3
T8
T6
T9
460 VAC
T4
T6
T5
T1
T7
T8
T2
T9
T3
T9
T8
T2
T1
T7
T3
T4
T6
T5
REMOVE
SLEEVING
BLACK
BLACK
GREEN
GROUND
RED
WHITE
BLACK
230 VAC
Figure 8. 230/460 VAC Electric Motor Windings
W
Z
X
Y
V
9
8
U
7
MOTOR
WINDING
STAR WITH
NEUTRAL
230 VAC
(LOW VOLTAGE)
460 VAC
(HIGH VOLTAGE)
MOTOR
WINDING
STAR WITH
NEUTRAL
9
W
Z
8
Y
V
7
X
U
MOTOR WINDING CONFIGURATION
230/460 VAC VOLTAGE SELECTION