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AKD-20 AR / Entellisys AR Low-voltage Switchgear
Section 8. Operating the Switchgear
Front Door Removal and Installation
DANGER: Electrical arc flash hazard. Personal
protection equipment required. Turn off power to the
equipment before working inside.
WARNING: The breaker compartment door must be
closed and latched to maintain the integrity of the arc
resistant enclosure. The breaker compartment door should
not be opened when the circuit breaker is closed and in the
connected position when the equipment is energized.
Refer to Figure 8.7, Figure 8.8, and Figure 8.9 for the removal
and installation of the switchgear front access doors.
Front Door Removal
To remove the switchgear front access door, proceed as
follows:
1.
Open the door by rotating the handle clock-wise.
2.
If the door is an auxiliary compartment door, remove
the mounting hardware attaching the ground wire
from the door to the frame (Figure 8.9).
3.
Loosen and remove the four ¼-20 x 5/8 inch self-
thread forming screws holding the door hinge to the
compartment dead front.
CAUTION: Prepare to support the weight of the front
access door prior to removing the last of the four mounting
screws.
4.
The door is now free to remove.
Front Door Installation
To install the switchgear front access door, proceed as
follows:
1.
With the door in the open position, align the
mounting holes on the door hinge with the mounting
holes on the compartment dead front.
2.
Insert the four ¼-20 x 5/8 inch self-thread forming
screws and tighten to 7-9 ft.-lbs.
3.
If the door is an auxiliary compartment door, attach
the ground wire from the door to the frame using the
¼-20 self-thread rolling screw, hex nut, flat washers
and external star lock washers (Figure 8.9).
4.
Close and latch the door.
51
Courtesy of NationalSwitchgear.com
Figure 8.7 AR front access door details
Full Height Front Door Hinge
(1)
Self-latching Mechanism
(2)
Escutcheon Breaker Gasket (Breaker Door Only)
(3)
Figure 8.8 AR front access door mounting hardware
(Dead Front Gasket Not Shown)
¼-20 x 5/8 inch Thread Rolling Screws
(1)
Figure 8.9 AR front access door details
©2016 General Electric. All rights reserved.
DEH-41473
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