Application
This kit is provided to replace the stop block assembly in the
Power Break II insulated-case circuit breakers. The parts
included in this kit are illustrated in Figure 1 and listed in Table
1. In the following instructions and figures, numbers in
brackets refer to the items in Table 1.
—
Fi
gure 1:Parts included in the stop block gasket kit
Item
Part #
Description
Qty.
1
N170P19024
SPRING ASSEMBLY SCREW
1
2
192A6368P1
SPACER
1
3
10054595G1
ASSEMBLY, STOP BLOCK
1
4
192A6976P233
BOLT, N22P21008B6 W/NYLON PATCH
4
5
N405P41B6
LOCKWASHER, STL SPRING 1/4
4
6
10103502P1
5/32 ALLEN WRENCH TOOL
1
—
Table 1. Parts list for the stop block gasket kit.
Installation
WARNING:
Before beginning this procedure, turn
the breaker OFF, disconnect it from all voltage
sources, and discharge the closing springs.
AVERTISSEMENT:
Mettre le disjoncteur à OFF , le
débrancher de toutes les sources de tension et
déclencher les ressorts de fermeture avant
d'entamer cette procédure.
1.
Turn the breaker off and discharge the closing
spring
by depressing the OFF and ON buttons in
the
sequence OFF-ON-OFF. Verify that the
breaker OFF-
ON indicator shows OFF on a green
background and
that the charge indicator
shows DISCHARGED on a
white background.
2.
A draw-out and stationary mounted breaker
need not
be removed from their enclosures, but
be careful that
all primary and control power to
the breakers are
disconnected.
3.
Loosen the four #8-32 screws that attach the
trim
plate to the breaker, if present, and remove
the trim
plate.
4.
Loosen the four screws at the corners of the
breaker
cover. Operate the charging handle one
time and hold
it extended to remove the cover
from the breaker
face, as illustrated in Figure 2.
—
Figure 2: Removing or installing the breaker top cover.
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DEH40466 INSTALLATION INSTRUCTIONS
Power Break® II Circuit Breakers
Replacement Stop Block Kit
1
