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I.L. 70C1080H01
Fig. 9.2 The steel Control Wire of the Trip Indicator
Assembly
9.3 Reinserting the Rating Plug
Carefully, insert the rating plug into the cavity on the right-
hand side of the trip unit. Align the three pins on the plug
with the sockets in the cavity. The plug should fit with a
slight insertion force. Use a 1/8" (3 mm) wide screwdriver
to tighten the M4 screw and secure the plug and the trip
unit to the circuit breaker (as removed in previous Fig.
6.2). Close the rating plug door.
Effective 9/21/99
BEFORE YOU FIT THE RATING PLUG INTO THE TRIP
UNIT, BE SURE TO CHECK THAT THE SENSOR
RATING MATCHES THAT PRINTED ON THE RATING
PLUG DOOR. INSTALLING A RATING PLUG THAT
DOES NOT MATCH THE SENSOR RATING CAN
PRODUCE SERIOUS MIS-COORDINATION AND/OR
FAILURE OF THE PROTECTION SYSTEM.
IF A RATING PLUG IS NOT INSTALLED IN THE TRIP
UNIT, THE UNIT WILL INITIATE A TRIP WHEN IT IS
ENERGIZED.
DO NOT FORCE THE RATING PLUG INTO THE
CAVITY. FURTHERMORE, THE M4 SCREW SHOULD
BE TIGHTENED ONLY UNTIL IT IS SNUG. DO NOT
USE A LARGE SCREWDRIVER. A 1/8" (3 MM) WIDE
SCREWDRIVER BLADE IS ADEQUATE.
9.4 Final Internal Visual Inspection
Before proceeding any further, do a visual inspection to
insure that none of the breaker's internal wiring might
hamper any mechanical operation or compromise proper
fit of any component. Use any remaining tie wraps to tidy
any wires which might be askew.
9.5 Replacing the Front Cover
Partially pull down the latching arm on the front of the
breaker and slide the breaker cover down into place onto
the frame. Using a 10mm ratchet or driver, tighten all four
retaining bolts in each corner of the cover. Make sure that
the cover is squarely in place. Latch the breaker and
reset the red flag on the Trip Indicator Assembly which
protrudes from the front cover above the Trip Unit.
Proceed with the test sequence.
10.0 POST INSTALLATION TESTING
10.1 When to Test
Testing prior to start-up can best be accomplished with
the breaker out of its cell or in the Test, Disconnected, or
Withdrawn (or Removed) cell positions.
CAUTION
CAUTION
Page 7
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