Model 6 Motor Control Centers 80459-641-01E
Appendix C—Automatic Vertical Bus Shutter 10/2012
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ENGLISH
Installation—Style 2
Follow these instructions to install the automatic vertical bus shutter
assembly (see Figure 148 on page 126) to an existing Style 2 midshelf (see
Figure 146 on page 125):
1. Turn off all power supplying this equipment before working on or inside
the equipment, and follow lockout/tagout procedures. Always use a
properly rated voltage sensing device to confirm the power is off.
2. Position the midshelf (Figure 147, Item A) in the appropriate area of the
structure.
3. Place the mounting foot (Item B) of the shelf into the mounting pan slots
(Item C). Secure the shelf at the mounting foot end, the left side, and the
right side with flat head screws (Detail A, Item D).
4. Install the hinge leaves of the door (Detail A, Item E) into the hinge slots
(Item G), which are on the structure corner channel. Fasten the hinge
leaves to the structure corner channel using hex head screws (Item H).
5. Install fastener receptacles (Detail B, Item J) into the bracket slots (Item K)
and fasten with hex head screws (Item H).
6. Install the automatic bus shutter assembly by rotating the mechanism
housing upward to clear the front corner channel of the structure.
7. Slide the automatic shutter assembly upward so that it fits snugly to the
left edge of the midshelf.
8. Loosely insert a 10-32 x 3/8 in. mounting screw through the inner left
edge of the midshelf and into the square nuts in the housing.
DANGER
HAZARD OF ELECTRIC SHOCK,
EXPLOSION, OR ARC FLASH
• Apply appropriate personal protective
equipment (PPE) and follow safe electrical
work practices. See NFPA 70E or
CSA Z462.
• This equipment must be installed and serviced
only by qualified electrical personnel.
• Turn off all power supplying this equipment
before working on or inside.
• Always use a properly rated voltage sensing
device to confirm power is off.
• Replace all devices, doors, and covers
before turning on power to this equipment.
Failure to follow this instruction will result
in death or serious injury.
Figure 150: Shelf Installation—Style 2
A
B
C
D
F
F
E
G
D
H
J
H
K
F
Table 19: Shelf Installation Kit
Parts—Style 2
Description Quantity Item
Midshelf 2
➀
A
Flat head screws 3 D
Unit door 1 F
Hex head screws 4
➁
H
Quarter turn fastener
receptacle
2
➁
J
➀ Shelves are furnished with order. Structure
may already have shelf mounted in position.
➁ All necessary hardware for typical shelf
installation is included. Door installation may
require additional hardware.
See Detail A
Detail A
See Detail
A or B
See Detail B
Detail B
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