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CB12 CONTROL BOX SYSTEM DIAGRAM ( 3Ø - 230 VAC )
MOUNT CONTROL
BOX IN A VERTICAL
POSITION AS SHOWN.
CONTACTOR
OVERLOAD
RELAY
3 PHASE
AC OUTPUT
POWER CABLE
2. START FLOAT
SWITCH CONNECT TO
TERMINALS 3 AND 4
PUMPING
RANGE
3. STOP FLOAT
SWITCH CONNECT TO
TERMINALS 1 AND 2
PAGE 22 — ST4/ST6 SERIES SUBMERSIBLE PUMPS • OPERATION MANUAL — REV. #4 (03/04/24)
A1
A2
5L3
13
14
RESET
95 96
GRN
GRN
RED
WHT
BLK
1. SECURE FLOAT SWITCH
WIRES TO PUMP
DISCHARGE HOSE
Figure 11. CB12, 3Ø-230 VAC Control Box
System Diagram
H1
H4
X2
XF
BLK
WHT
RED
OLD STYLE
TRANSFORMER
OFF / ON
LAMP
MANUAL / AUTO
SWITCH
TERMINAL BLOCK
EXTERNAL 3-PHASE
(230 VOLT)
POWER SOURCE
CIRCUIT
BREAKER
RED
WHITE
BLACK
3 PHASE
AC INPUT
POWER CABLE
WARNING
CONTROL BOX INSTALLATION IS TO BE
PERFORMED BY A LICENSED ELECTRICIAN
OR QUALIFIED PERSONNEL.
THE POSSIBILITY OF ELECTRICAL SHOCK
OR ELECTROCUTION EXISTS, WHICH COULD
CAUSE SEVERE BODILY HARM EVEN DEATH!
L1
L2
L3
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