80459-641-01E Model 6 Motor Control Centers
10/2012 Appendix C—Automatic Vertical Bus Shutter
© 1999–2012 Schneider Electric All Rights Reserved
127
ENGLISH
Removal—Style 1 Follow these instructions to remove the automatic vertical bus shutter
assembly (see Figure 149) from an existing Style 1 midshelf.
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. Remove the unit from the MCC structure. Follow the procedures in
“Section 4—Installing the MCC”.
3. Remove the automatic vertical bus shutter rod from the vertical bus clip
located on the front of the vertical bus assembly.
4. Insert the manual shutter into the vertical bus assembly.
5. Remove the two 10-32 x 3/8 in. mounting screws located on the inner
left edge of the midshelf.
6. Slide the automatic shutter assembly downward, clearing the midshelf.
7. Rotate the assembly downward to clear the front corner channel of the
structure.
8. Remove the automatic shutter assembly.
9. Replace all devices, doors, and covers before turning on the power to
the equipment.
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 149: Automatic Vertical Bus Shutter Removal—Style 1
Vertical
bus door
and rod
Midshelf
Operator
mechanism
Mechanism
housing
Mounting
screws
Manual
shutters
Vertical bus
assembly
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