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ABB GE Power Break II Installation Instructions Manual
ABB GE Power Break II Installation Instructions Manual

ABB GE Power Break II Installation Instructions Manual

Replacement stop block kit

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1
DEH40466 INSTALLATION INSTRUCTIONS
Power Break® II Circuit Breakers
Replacement Stop Block Kit
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.
[1]
[3]
Figure 1:Parts included in the stop block gasket kit
Item
Part #
1
N170P19024
SPRING ASSEMBLY SCREW
2
192A6368P1
SPACER
3
10054595G1
ASSEMBLY, STOP BLOCK
BOLT, N22P21008B6 W/NYLON PATCH
4
192A6976P233
5
N405P41B6
LOCKWASHER, STL SPRING 1/4
6
10103502P1
5/32 ALLEN WRENCH TOOL
Table 1. Parts list for the stop block gasket kit.
[2 ]
[4]
[5]
[6]
Description
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
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.
Qty.
1
1
1
4
4
1
Figure 2: Removing or installing the breaker top cover.
ressorts de
fermeture avant

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Summary of Contents for ABB GE Power Break II

  • Page 1 DEH40466 INSTALLATION INSTRUCTIONS Power Break® II Circuit Breakers Replacement Stop Block Kit Installation Application This kit is provided to replace the stop block assembly in the WARNING: Before beginning this procedure, turn Power Break II insulated-case circuit breakers. The parts the breaker OFF, disconnect it from all voltage included in this kit are illustrated in Figure 1 and listed in Table sources, and discharge the closing springs.
  • Page 2 Operate the charging handle four more times (for a total of Screwdriver five, one less than the six needed to fully charge the closing spring). If the closing spring does not charge, use the following steps: a. With a large screwdriver, put pressure on the end of the closing spring, as shown in Figure 3 and Figure 4.
  • Page 3: Phillips Screwdriver

    — Figure 7: Illustration of Bolt on Handle Side of Assembly Wall — Figure 8: Releasing the breaker mechanism. Front Bolt Rear Bolt (Not Present with Electric Operator installed) — Figure 11: Pressing the spring assembly to allow removal. If the Electric Operator is installed on a stationary breaker it must be detached before the Stop Block is replaced.
  • Page 4 assembly to the handle side of the assembly wall (Figure 10). If Electric Operator is installed, then only the front and handle side bolts will need to be removed because the rear bolt will not be installed. Loosen screws front face accessories(Figure 13) until the screws are fully loosened from the housing, and then loosen the ¼-in setscrews...
  • Page 5 Tubing with Collar — — Figure 18: Stop block in position in breaker. Figure 15: Allen Screw to be loosened for Stop Block Removal Replace the Electric Operator if previously rem oved Spring Frame by securing with the long screws on the left side of Bearing the spring assembly wall and the short hex screws on the bottom of the spring assembly (Figure 23).
  • Page 6: Left Side View

    — — Figure 19: Rotating the close de-latch mechanism to release the charging pawl. Figure 20: Reinstalling the closing spring. — Figure 21: Draw-out Breaker with Electric Operator Left Side View Front View Bolt Electric Operator slid left — Figure 22: Electric Operator Slid Left on Draw-out Breaker after long Phillips screws unscrewed...
  • Page 7 These instructions do not cover all details or variations in equipment nor do they provide for every possible contingency that may be met in connection with installation, operation, or maintenance. Should further information be desired or should particular problems arise that are not covered sufficiently for the purchaser’s purposes, the matter should be referred to the ABB Inc. —...