6
© Copyright 2021 Zoeller
®
Co. All rights reserved.
5
4
1
6
2
WHITE
RED
PUMP
MAIN
START
L1
L2
BLACK
WHITE
230 VAC 1ø
FROM CONTACTOR
RUN
START
BLACK
START
RELAY
CAPACITOR
CAPACITOR
1
2 3
GREEN
2
4
1
6
5
WHITE
PUMP
START
MAIN
BLACK
L2
WHITE
BLACK
RUN CAPACITOR
RED
START CAPACITOR
L1
T2
T1
START
RELAY
3
2
1
GREEN
230 VAC 1ø
(SEE CHART)
(SEE CHART)
START CAP.
324-389UF 125V
MODELS
6120/6121
RUN CAP.
40UF 370V
A
Three Phase Installation
Three phase pumps are nonautomatic. To operate
automatically, a control panel is required. Follow the
instructions provided with the panel to wire the system.
Before installing a pump, check the pump rotation
to insure that wiring has been connected properly
to power source, and that the green lead of power
cord (See wiring diagram), is connected to a valid
ground, Momentarily energize the pump, observing the
directions of kick back due to starting torque. Rotation
is correct if kick back is in the opposite direction of
rotation arrow on the pump casing. If rotation is not
correct, switching of any two power leads other than
ground, should provide the proper rotation.
Refer to the wiring diagram supplied with specific
electrical control panel for correct cable termina-
tion locations.
Refer to Sensor and Control Panel sections on page 4.
NOTE 1:
Optional sensor cable includes 5 leads; 2 leads for thermal sensor, 2 leads for moisture sensor, and a green ground lead. If one sensor only is specified,
both sensors are provided and must be hooked up to validate warranty. The sensors must be specified at time of initial pump order and are not available for field
installation. Sensor wire colors are as shown.
(N/C)
SENSOR
330K OHMS RESISTANCE
SEAL FAILURE PROBES
PANEL.
INDUCTION CIRCUIT IN THE CONTROL
LEADS MUST BE CONNECTED TO
SEAL FAILURE MOISTURE SENSOR
STARTER COIL
CONNECTED IN SERIES WITH
RECOMMENDED THERMAL SENSOR
THERMAL
T3
T2
T1
L3
L2
L1
POWER CABLE
3 PHASE MOTOR
3Ø VAC
SENSOR CABLE
BLACK
WHITE
ORANGE
RED
GREEN
TYPICAL 3-PHASE WIRING DIAGRAM
ZEPA0038E
Single Phase Installation
All single phase models require start capacitor, run capacitor and relay in the circuit to start and operate properly. These components can be purchased separately
or prewired in Zoeller control panel. For components purchased separately used the diagram for installation and hookup.
Single phase models are nonautomatic. To operate automatically a control panel must be added to the power circuit. Follow the instructions provided with the panel.
ZEPA0478
ZEPA0477
WIRING DIAGRAM
COMPONENT LAYOUT
WIRING DIAGRAM
ZEPA0538
COMPONENT LAYOUT
ZEPA0537A
MODELS 6120 / 6121
USING SUPCO PR90
RELAY BEFORE
10/1/07
MODELS
6111 / 6122 / 6123 / 6124
AND 6120 / 6121 USING
GE RELAY AFTER 10/1/07
5
2
1
WHITE
RED
PUMP
MAIN
START
L1
L2
BLACK
WHITE
230 VAC 1Ø
FROM CONTACTOR
START
BLACK
START
RELAY
CAPACITOR
RUN CAPACITOR
1
2
3
GREEN
2
1
5
WHITE
PUMP
START
MAIN
BLACK
L2
WHITE
BLACK
RUN CAPACITOR
RED
START CAPACITOR
L1
T2
T1
3
2
1
GREEN
230 VAC 1Ø
(SEE CHART)
(SEE CHART)
R
RELAY
START
START CAP.
MODELS
RUN CAP.
6120/6121
216-259UF 250V
40UF 370V
6111/6122/6123/6124
270-324UF 250V
50UF 370V