Magnum Energy Mini Magnum Panel (MMP Series) - Manual (Page 61)

©
2013 Magnum Energy, Inc. Page 52
Appendix A - Optional Equipment and Accessories
A4 Knockout Plate
A knockout plate (PN: MMP-KP) can be purchased to facilitate running conduit from the top of
the MMP enclosure, or for use as a safety plate. If your Magnum inverter is ever removed for
service and the AC bypass breaker is used to continue to power the inverter loads, attaching
the knockout plate prevents accidental access to live electrical circuits inside the MMP enclosure
(see Figure A4-1).
WARNING: If the knockout plate is used as a safety plate, the bus bars from the
top of the DC disconnect must be prevented from touching the metal knockout plate
or a short circuit to the battery bank may occur—causing very lethal currents. Either
remove these bus bars or isolate them (i.e., using electrical tape/rubber caps), do not
rely ONLY on turning the DC disconnect switch off.
Info: Four #10-32 x 3/8” Pan head, T25 Torx drive, thread cutting screws; and four #10
lock washers are used to secure the knockout plate to the enclosure.
Info: Before removing the appropriate knockouts (Figure A4-2), think about whether
you are going to use cable clamps or conduit, and all the different wiring required.
Figure A4-1, Attaching Knockout Plate Figure A4-2, Knockout
Plate Dimensions and
Knockouts
T OP V IEW
(
KNOCKOUT PLATE
)
C ONDUIT K NOCKOUTS
(T OTAL ):
B = ½” and ¾” (x2)
C = 1” and 1¼” (x2)
D = 1 ½” and 2” (x1)
D
C
C
B
B
7
8
12
”
1
2
6
”