Surge
Arrester
Recloser
Head
Ground
Supply
Voltage
Pole
Ground
Pole
Recloser
Pole
Surge
Arrester
Transformer
Arrester
Ground
Form 4D Control
HOT
NEU
GND
NEU
AC
Input Terminal Block
Control Cable
Surge
Arrester
Arrester
Ground
Customer Ground Connection
at External Lug
AC
NEUTRAL
Form 4D Control
Supply Voltage
Transformer
ELECTRICAL CONNECTIONS - Remote dedicated supply
transformer
Input
Terminal
Block TB1
External
Ground Lug
Note: Distance between
transformer and
recloser should be
one pole span or
less.
System
Neutral
Figure 13. Recommended grounding method for the Form 4D recloser control installed on 4-wire multi-grounded with
remote supply voltage transformer
WARNING
Hazardous voltage. Recloser and control must be
solidly grounded. Follow all locally approved procedures
and safety practices when grounding this equipment.
Improper grounding can result in contact with high
voltage, which will cause death or severe personal injury.
Customer connections for AC power
CAUTION
Equipment damage. Do not drill connection holes into
the top of the cabinet. Connection holes in the top
of the cabinet will allow moisture to seep into the
control and damage the components or cause control
misoperation. Failure to comply will void the control’s
factory warranty.
17OPERATION INSTRUCTIONS MN280049EN September 2017
Form 4D Microprocessor-based pole-mount recloser control installation and operation instructions
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