Ac Grounding Requirements - AT&T MERLIN LEGEND Release 3.1 Installation Manual

AC Power and Grounding
From AC
Load Center
(2 separately
fused 15 A
circuits)
HUBBELL
Receptacles
(5262 15 A
or equivalent)
Single-Point
Ground
Figure 2–1. AC Grounding Requirements
!
CAUTION:
The AC outlet for the control unit cannot be switch-controlled. Plugging
the control unit into such an outlet invites accidental disconnection of
the system. The AC outlet must be properly wired as described in "AC
Outlet Tests."
Ground Wire
#14 AWG
Ground Bar Mounted
on a 4" Box (Square
"D" PK9GTA or
approved equivalent)
#12 or #14 AWG Copper
Wire to Each Power Supply
Grounding Screw
4" Box (RACO 230
or equivalent)
4" Cover
(RACO 807
or equivalent)
Ground Wire
#6 AWG Copper
Approved
Building Ground
Installing the Control Unit
2–7