Application Guide

Installation Instructions Section 5876
Spec. No. 582140000 (Models 802
NLDB, 802NLEB and 802NL-B) Issue AT, April 26, 2013
Chapter 5. Installing the Rectifiers and Initially Starting the System Page 5-13
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COMPONENT
MCA IDENTIFICATION NUMBER
MCA NUMBERING
SCHEME (note
that each line
shown below is
separated with a
dash in the MCA
display)
NOTES EXAMPLE
Distribution
Only Bay’s
Distribution
Bus
Bay #
Distribution Bus #
w/in Bay (A or B
Designation)
Primary Power Bay is #1, other bays are
numbered consecutively, following the bay-to-
bay cabling scheme.
Distribution Bus #1 = Top Left,
Distribution Bus #2 = Top Right,
Distribution Bus #3 = Bottom Left,
Distribution Bus #4 = Bottom Right,
A or B as set by jumper on MCA Distribution
Bus Monitoring Circuit Card.
Fifth Bay, Top Left
Bus, Set for B
Designation
5-1B
Sixth Bay, Top Right
Bus, Set for B
Designation
6-2B
Seventh Bay, Bottom
Left Bus, Set for B
Designation
7-3B
Seventh Bay, Bottom
Right Bus, Designation
Not Set
7-4
Distribution
Only Bay’s
Distribution
Device
Type
Bay #
Distribution Point #
w/in Bay
Type = Breaker or Fuse or MISC 50-73.
Primary Power Bay is #1, other bays are
numbered consecutively, following the bay-to-
bay cabling scheme.
Distribution Point =
1-12 (bottom - top, Top Left Bus, Bus #1).
13-24 (top - bottom, Top Right Bus, Bus #2).
25-36 (bottom - top, Bottom Left Bus, Bus #3).
37-48 (top - bottom, Bottom Right Bus, Bus #4).
Note that distribution components may take
more than one mounting position, designation
number is the left most mounting position.
Note: The optional bullet-device fuse panel is
displayed as MISC 50-73.
Fifth Bay, Circuit
Breaker Mounted in
Position One, Bus 1
Set for A Designation
Breaker 5-01A
Sixth Bay, Fuse
Mounted in Position
Thirteen, Bus 2
Designation Not Set
Fuse 6-13