Rockwell Automation 1102C-VB4 400A Vacuum Contactor Vacuum Interrupter Phase Assembly Replacement - Manual (Page 2)

42052-094
G. Ushakow
N/A
N/A
N/A
42052
1006490 1
INSTRUCTION SHEET
BULLETIN 1102C 400A VACUUM CONTACTOR
VACUUM INTERRUPTER PHASE ASSEMBLY
REPLACEMENT
2-19-04
Mark Jutz 2-19-04
D. Josef 2-19-04
2 2
REVISION
AUTHORIZATION
DIMENSIONS APPLY BEFORE
SURFACE TREATMENT
H
A
B
C
D
E
F
G
(DIMENSIONS IN INCHES)
TOLERANCES UNLESS
OTHERWISE SPECIFIED
REFERENCE
SHEET OF DWG.
B
DR.
CHKD.
APPD.
DATE
DATE
DATE
±
±
±
ANGLES:
.XXX:
.XX:
THIS DRAWING IS THE PROPERTY OF
THE ALLEN-BRADLEY CO. INC.
AND MAY NOT BE COPIED, USED OR
DISCLOSED FOR ANY PURPOSE EXCEPT
AS AUTHORIZED IN WRITING BY
THE ALLEN-BRADLEY CO. INC.
LOCATION : MILWAUKEE, WISCONSIN U.S.A.
SIZE
1 2 3 4 5 6 7 8
E - DOC
Vacuum Interrupter Phase Assembly Replacement (Cont'd)
6. Locate the replacement Interrupter Phase Assembly that needs to be replaced. It is recommended that all three
interrupters be replaced at the same time.
7. For the outer interrupters, remove the Retainer. While holding the Interrupter in position with the provided wrench,
remove the screw from the line side terminal
(Figure 3).
8. Remove the shunt screw from the load side terminal (See Section A-A). This will free the shunt. Carefully remove
the interrupter assembly
(Figure 4).
9. The replacement interrupter is factory set for contact gap and does not require adjustment. The flexible shunt will
feed through the flexible shunt path in the molding of the contactor and the assembly can be pushed firmly back into
place
(See Figure 4 showing locations for applying hand pressure to snap interrupter into plastic molding), observe the
adjacent phases to see precisely how this is positioned. While holding the Interrupter in position with the provided
wrench, replace the line terminal screw
(Figure 3). Replace the shunt connection hardware (Figure 4). Torque screw to
60 - 80 lb-inches.
10. Reinstall the Control-Pak (Figures 5A & 5B). First, insert the lower tab into the recess on the side of the contactor
base. With proper installation, the Actuator will fit into the hole in the slot in the side of the contactor housing. Using a
thin rod or flat blade, lift the Actuator up as necessary to insert it into the slot mentioned.
11. Reinstall the cover and secure it with the original mounting hardware. NOTE: Cover must fit under metal bracket
on Control-Pak. Tighten the four screws in a diagonal pattern to 12 lb-inches. (Figure 1).
12. Reattach the coil wire leads and any auxiliary control wires to the Control-Pak (tighten to 7 lb-inches).
13. Reinstall the contactor. Torque mounting screws to 50 - 75 lb-inches.
14. Reconnect the line and load conductors and tighten the main terminal hardware and bolts to 180 - 210 lb-inches.
Figure 5A Figure 5B
42052-094-01 (1)
Printed in U.S.A.
Figure 3 Figure 4
Shunt
Shunt
SECTION A-A
A
A
Special wrench
supplied with kit
Retainer
Actuator
must fit into
slot shown
Control-Pak
Actuator
Auxiliary Control-Pak
Thin rod or
flat blade
Shunt
Screw
Shunt
Screw
Interrupter
Phase Assembly
Terminal
Screw
Pressure points
for interrupter
installation
PART
NO.
MATERIAL
CHG.
LTR. SIZE
FLAT FOLD
-01 1
ONE SIDE PRINTED
8-1/2" W x 11" H BODY STOCK WHITE
BODY INK BLACK
4-1/4" W x 5-1/2" H