Installation—Style 1

Follow these instructions to install the automatic vertical bus shutter assembly to an existing Style 1 midshelf. See Figures Shelf Installation—Style 1 and Automatic Vertical Bus Shutter Installation—Style 1.

DANGER
hazard of electric shock, explosion, or arc flash Apply appropriate personal protective equipment (PPE) and follow safe electrical work practices. See NFPA 70E, NOM-029-STPS-2011, 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 these instructions will result in death or serious injury.

DANGER

hazard of electric shock, explosion, or arc flash

Apply appropriate personal protective equipment (PPE) and follow safe electrical work practices. See NFPA 70E, NOM-029-STPS-2011, 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 these instructions will result in death or serious injury.

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.

Position the midshelf (Shelf Installation—Style 1, Item A) in the appropriate area of the structure.

Description	Quantity	Item
Midshelf	1*	A
Flat head screws	2	D
Unit door	1	F
Round head Torx^® screws	4*	H
Quarter turn fastener receptacle	2*	J

Place the mounting foot (Item B) of the shelf into the mounting pan slots
(Item C). Secure the shelf on the left and right with flat head screws (Detail A, Item D).
Install the hinge leaves (Detail A, Item E) and the door (Item F) into the hinge slots (Item G), which are on the structure corner channel. Fasten the hinge leaves to the structure corner channel using Torx head screws (Item H).
Install the fastener receptacles (Detail B, Item J) into the bracket slots (Item K) and fasten with Torx head screws (Item H).
Install the automatic bus shutter assembly by rotating the mechanism housing upward to clear the front corner channel of the structure.
Slide the automatic shutter assembly upward so that it fits snugly to the left edge of the midshelf.
Loosely insert the two 10-32 x 3/8 in. mounting screws through the inner left edge of the midshelf and into the square nuts in the housing.
Remove the manual shutter from the vertical bus assembly. Allow the manual shutter to hang next to the vertical bus assembly.
Snap the automatic shutter rod onto the vertical bus clip located on the front of the vertical bus assembly.
Tighten the two 10-32 x 3/8 in. mounting screws inserted in Step 8.
Push the operator mechanism to the rear, ensuring the shutter rotates upward into the pocket of the midshelf above the unit.
Insert the unit into the MCC. Follow the procedures in Section 4—Installing the MCC.
Replace all devices, doors, and covers before turning on the power to the equipment.