Installation Instructions
15
CAUTION: Do not attempt to force an improper rating
plug into a trip unit, mechanical damage may occur.
To prevent the insertion of a rating plug into a trip unit for
which it is not intended, the receptacle in the trip unit has been
keyed to reject improper rating plugs.
Rating Plug
3.) Check label on the rating plug.
Check the rating plug label to verify that it is the proper plug
for the trip unit. If it is not a proper plug, the pins will not mate
with the plug receptacle.
4.) To insert rating plug, align plug with plug receptacle and
press into place.
To insert a rating plug in the trip unit, align the plug with the
plug receptacle and press the plug into place. The clips on the
plug and the compression fit hold the plug in place, eliminat-
ing the need for screws or latches.
To remove a rating plug, squeeze the clips and pull the plug
from the plug receptacle. Since the plug is held in place by
compression, some force will be required to remove the plug.
Do not close the breaker with the rating plug removed from
the trip unit.
5.) To replace the cover, bow slightly in the middle, and
snap into place.
After the rating plug has been inserted and the necessary
setting adjustments have been made (see Fault Protection
Adjustments, pages 29-33), replace the cover by sliding the
protective shield into the top lip of the trip unit, bow slightly in
middle, and press down with thumb on bottom to snap shield
into place. Replace the two (2) special retaining screws.
6.) The cover may be sealed with a lead seal for tamper
evident protection .
After the cover has been replaced, a wire may be inserted
through the holes in the screws and secured with a meter
seal. This will help prevent tampering.
Courtesy of NationalSwitchgear.com
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