Magnum Energy Mini Magnum Panel (MMP Series) - Manual (Page 13)

©
2013 Magnum Energy, Inc. Page 4
Introduction
1.3 MMP Internal Components
The following components are found inside the MMP enclosure (refer to Figures 1-2 thru 1-5):
1
DC Negative to Ground Connection – A busbar connects the DC negative to the
system ground. This busbar can be removed if the primary DC negative-to-ground
connection is made elsewhere in the system (see Section 2.12).
2
Mounting Dimples (x4) – These dimples allow the optional ME-BMK-NS (Battery
Monitor Kit without DC shunt) to be installed. For more information on mounting the
battery monitor see Section A3 in Appendix A.
3
Mounting Keyholes (x4) – Four keyholes for mounting the enclosure. See Figure 2-4
for size information on these keyholes.
4
Inverter AC Wiring Terminal – Terminal for connecting the inverter’s AC input and
output wires.
5
AC Breakers – This AC breaker assembly is pre-wired at the factory and consists of the
inverter bypass switch, and the inverter input and output disconnect. These breakers
provide overcurrent protection and a way to disconnect the AC wiring inside the MMP
enclosure. These breakers can also provide overcurrent protection to the AC input source
and output load circuits if the minimum recommended AC wiring sizes are used.
6
External AC Wiring Terminal – Terminal for connecting the external AC source (utility/
generator) and the electrical panel that will be powered by the inverter.
7
AC Neutral to Ground Connection – A wire (green) connects the AC neutral to the
system ground. This green wire can be removed from the ground busbar if the primary
AC neutral-to-ground connection is made elsewhere in the system (see Section 2.11).
8
Ground Busbar – This busbar is connected to the MMP enclosure chassis and is used to
tie AC and DC equipment grounds to a common point.
This busbar has dual hole sizes—three #14 to #1/0 AWG and six #14 to #6 AWG—with
screw type compression terminals (no ring lugs required).
9
Inverter’s DC Negative Connection Busbar – Inverter’s DC negative terminal
connects to the top of this busbar.
10
Inverter’s DC Positive Connection Busbar – Inverter’s DC positive terminal connects
to the top of this busbar.
11
DC Shunt – A 500-amp/50 mV shunt installed in the DC negative side that is used to
measure the amperage fl owing between the battery and the inverter (and any DC loads
connected). This shunt is pre-installed so that a battery monitor may be easily connected
to display the current fl ow. See Section A3 in Appendix A for information on installing
and wiring the ME-BMK-NS battery monitor inside the MMP enclosure.
12
Battery Negative Connection – The bottom of the DC shunt is the connection point to
the negative terminal of the battery bank.