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Rockwell Automation Publication 1512A-UM101B-EN-P - December 2021
Chapter 2 Installation – Standard Enclosure
Opening the Medium Voltage Doors
The medium voltage doors are identified as MV in
Figure 4 - MV Door Locking Bolt and Isolation Switch Location
Access to the Power Bus on page 17
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 locking 3/8-1.75 bolts for both MV doors.
The doors are now released and will swing open to the left.
4. Reverse the procedure to close the door
ATTENTION:
Medium voltage components may be located behind the
swing-out low voltage panel (standard cabinets only). Complete the
power lockout procedure (See
Power Lock-out Procedure on page 49
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 Lockout procedure (See
) before beginning any service
procedures to the unit. Failure to do so may result in severe burns,
injury, or death.
IMPORTANT
The medium voltage doors have their own isolation switch handle
and interlocking safeguards. The top MV door must be opened
before the lower MV door can be opened.
Isolation Switch
Door Locking Bolts for Upper
Medium Voltage Door
Door Locking Bolts for Lower
Medium Voltage Door
