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Integrated voltage sensing option
INSTALLATION AND OPERATION INSTRUCTIONS
MN280103EN March 2023 www.eaton.com
Contact position indicator
Located on the bottom of the recloser within the thermoset
polymer housing, this indicator displays the word OPEN
(green) when the recloser contacts are open and CLOSED
(red) when the recloser contacts are closed. The position
indicator is reflective and can be seen at night when a
flashlight is shown on its surface. See
Mechanical interlock feature
NOVA NX-STS recloser uses a mechanical interlock safety
feature that is standard for all NOVA NX-STS reclosers
to prevent an undesired close. When the yellow handle
is pulled down from underneath the sleet hood, the
mechanical interlock is engaged within the recloser tank and
physically prevents the recloser contacts from closing. The
mechanical interlock is disengaged when the yellow handle
is moved upward into the sleet hood and the recloser can
now be electrically closed.
Integrated voltage sensing option
WARNING
THIS EQUIPMENT IS NOT INTENDED TO PROTECT HUMAN LIFE.
FOLLOW ALL LOCALLY APPROVED PROCEDURES AND SAFETY
PRACTICES WHEN INSTALLING OR OPERATING THIS EQUIPMENT.
FAILURE TO COMPLY CAN RESULT IN DEATH, SEVERE PERSONAL
INJURY, AND EQUIPMENT DAMAGE.
WARNING
HAZARDOUS VOLTAGE. ALWAYS USE A HOTSTICK WHEN
WORKING WITH THIS EQUIPMENT. FAILURE TO DO SO COULD
RESULT IN CONTACT WITH HIGH VOLTAGE, WHICH WILL CAUSE
DEATH OR SEVERE PERSONAL INJURY.
WARNING
HAZARDOUS VOLTAGE. SOLIDLY GROUND ALL EQUIPMENT.
FAILURE TO COMPLY CAN RESULT IN DEATH, SEVERE PERSONAL
INJURY, AND EQUIPMENT DAMAGE.
WARNING
HAZARDOUS VOLTAGE. IF TERMINAL CONNECTIONS ARE
REVERSED, VOLTAGE SENSING MAY INDICATE ERRONEOUS
VOLTAGES WHEN THE CONTACTS ARE OPEN. DO NOT RELY ON
VOLTAGE SENSING TO ENSURE THAT THE VOLTAGE IS ZERO AND
THE LINE HAS BEEN DE-ENERGIZED. ALWAYS FOLLOW PROPER
SAFETY PRACTICES AND USE A SEPARATE DETECTION METHOD
TO VERIFY A DE-ENERGIZED CONDITION. FAILURE TO DO SO CAN
RESULT IN CONTACT WITH HIGH VOLTAGE, WHICH WILL CAUSE
DEATH OR SEVERE PERSONAL INJURY.
NOTICE
DISCONNECT SWITCHES FOR AC CONTROL POWER ARE
NECESSARY TO ISOLATE THE CONTROL FOR TESTING AND
SERVICING.
The NOVA NX-STS recloser is available with three or six
voltage sensors (three internal for source voltage sensing,
three integral sensors for load-side voltage sensing) when
specified at time of order with the Form 7 control. Refer
to the Installation Procedure section on page 7 for
information on installing the NOVA NX-STS recloser. Refer to
Service Information MN280095EN Form 7 Microprocessor
Based Pole Mount Recloser Control Installation and
Operation Instructions
for further information on installing
the Form 7 pole-mount control.
Verify the correct load-side and source-side terminal
connections. This is required for correct operation of both
the internal and integrated load-side voltage sensors.
NOTICE
WHEN THE LOAD-SIDE VOLTAGE SENSOR ACCESSORY IS
INSTALLED, DO NOT GRASP THE TOP OF THE LOAD-SIDE VOLTAGE
SENSOR AND LIFT. DOING SO CAN CAUSE INTERNAL DAMAGE TO
THE LOAD-SIDE VOLTAGE SENSOR AND AFFECT VOLTAGE SENSING
ACCURACY. ON THE SIDE OF THE LOAD-SIDE VOLTAGE SENSOR IS
A “DO NOT LIFT” SYMBOL FOR VISUAL WARNING.
See
for a close up of “do not lift” symbol
imprinted on the side of the load-side voltage sensor.
Figure 11 . “Do not lift” symbol printed on the side of
the load-side voltage sensor
“Do not lift”
symbol
