Rockwell Automation 1503 OEM Starter Frame Components Installation Manual - Manual (Page 35)

Chapter
3
Adjustments for 400 Amp Equipment
Door Interlock Circumvention
To ensure proper functioning of the isolation switch as-
sembly, perform the following adjustments in the order
they are presented.
The door interlock mechanism is designed to prevent
access to the medium voltage cell while the unit
is energized. When the unit is in operation, do not
circumvent this interlocking safety feature. Always
disconnect and lock out incoming power (see Power
Lock-out Procedure, pg 3-2) before proceeding with any
adjustments requiring the handle to be moved to the ON
(closed) position. Failure to do so may result in electric
shock causing severe burns, injury or death.
Some of the following sections may require moving the isolation switch
handle to the ON position while the medium voltage door is open. The
interlocking safeguards in the mechanism are designed to prevent the
handle from moving to the ON position while the cabinet door is open.
• To circumvent this safety feature, use a screwdriver, or other tool, to
depress the door interlock defeater lever in the switch.
• Hold the lever down while moving the handle to the ON (closed) posi-
tion.
Interlock Defeater
Lever
Figure 3.1 – Door Interlock Defeater Lever
1503-IN050D-EN-P – June 2012
I M P O R T A N T I M P O R T A N T
A T T E N T I O N A T T E N T I O N