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Minimum Wire Size for AC Terminal Blocks is AWG 12
Use single wire lug for
Protective Earth
Ground. Minimum
Wire Size is AWG 8.
AC Input terminal blocks
#3
#2
#1
Section 3.1 AC Input Cable Connections (continued)
Figure 6. Wire Size for AC Input Terminal Blocks
Each of the
Shelf’s
3 AC Input terminal blocks can require up to 18.5A continuous current.
See Figure 6 for the minimum wire size for each of the AC cables, which is:
▪
N1, N2, N3 (AC-Neutral): 2.5mm
2
(AWG 12)
▪
L1, L2, L3 (AC-Line): 2.5mm
2
(AWG 12)
▪
P.E. (Frame Ground): 2.5mm
2
(AWG 12)
▪
Protective Earth Ground: 8mm
2
(AWG 8)
Strip, insert and tighten the proper sized wires (N, L, and P.E.) into the AC Input terminal block
that physically supports the dedicated Rectifier Module (RM) for that position. For example, if
only RM position #1 is configured within the Shelf, then do not wire AC Terminal Blocks #2 and #3.
Also, attach the single lugged cable to the Protective Earth Ground mounting location (to the left
of the AC terminal blocks).
Note: Any Rectifier Module position that is not filled with a Rectifier Module should have a
Rectifier Module Blank (filler) inserted into that position.
