Eaton COOPER POWER SERIES - Page 15

1:1 Isolation
Transformer
CL-7 Control Panel
Neutral connected to ground at panel to
shunt HV to LV faults/leakage to Earth
Ground. Can't be removed.
To assure isolation from Earth Ground
check continuity of each of the leads of the
isolation transformer to G before connecting
leads to control panel.
Core may or may not
be tied to Earth.
Earth Ground not
carried to panel.
120 V External
Source
Factory Installed
2:1 Auto Transformer in
Control Box
Figure6. 240 Vac application with Eaton's Cooper Power series 240 V Control—Option 1
1:1 Isolation
Transformer
CL-7 Control Panel
Neutral connected to ground at panel to
shunt HV to LV faults/leakage to Earth
Ground. Can't be removed.
To assure isolation from Earth Ground check
continuity of each of the leads of the isolation
transformer to G before connecting leads to
control panel.
Core may or may not
be tied to Earth.
120 V External
Source
Factory Installed
2:1 Auto Transformer in
Control Box
Figure7. 240 Vac application with Eaton's Cooper Power series 240 V Control—Option 2
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INSTALLATION, OPERATION, AND MAINTENANCE INSTRUCTIONS MN225003EN April 2018
CL-7 Voltage Regulator Control