Manual

6 Rockwell Automation Publication 1500-UM055G-EN-P - May 2013

Chapter 2 Installation – Standard Enclosure

Opening the Medium Voltage Doors

Medium voltage doors are identified as MV in Figure 4.

Figure 4 - Access to Medium Voltage Compartments

Refer to Access to the Power Bus on page 9 for the procedure to open the swing-

out low voltage panel behind the low voltage door (for standard cabinet only).

1. Electrically open the contactor by pressing the STOP button on the starter

or at the remote control location.

2. Move the isolation switch handle to the OFF position.

3. Unscrew the door locking bolts for medium voltage door.

ATTENTION: Medium voltage components are located behind the swing-out

low voltage panel (standard cabinets only). Complete the Power Lock-out

procedure (refer to Power Lock-out Procedure

on page 47 of Chapter 5) before

attempting to open the swing-out low voltage panel. Failure to do so may result

in severe burns, injury or death.

ATTENTION: Complete the Power Lock-out procedure (refer to Power Lock-out

Procedure on page 47 of Chapter 5) before beginning any service procedures to

the unit. Failure to do so may result in severe burns, injury or death.

LV MV

Door Locking Bolts for Upper

Medium Voltage Door

Door Locking Bolts for Upper

Medium Voltage Door

Isolation

Switch

Handles

IMPORTANT

Each medium voltage door has its own isolation switch handle and

interlocking safeguards. Upper and lower power cells are separated by an

isolation barrier.