Owner`s manual

2.0 Introduction

2.3 MMP Internal Components

The following components are found inside the MMP enclosure (refer to Figures 2-2 thru 2-5):

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 3.12).

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 A-2 in Appendix A.

Mounting Keyholes (x4) - Four keyholes for mounting the enclosure. See Figure 3-4

for size information on these keyholes.

Inverter AC Wiring Terminal - Terminal for connecting the inverter’s AC input and

output wires.

AC Breakers - This AC breaker assembly is pre-wired at the factory and consists of

the Inverter Bypass switch, and 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.

External AC Wiring Terminal - Terminal for connecting the external AC source (utility/

generator) and the electrical panel that will be powered by the inverter.

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 3.11).

AC Ground Busbar - This busbar is connected to the MMP enclosure chassis and is used

to tie AC 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).

Inverter’s DC Negative Connection -

9A) Top of Inverter DC Negative Busbar; connects to Magnum inverter’s DC negative

terminal.

9B) Top of DC Shunt; connects to non-Magnum inverter’s DC negative terminal (the

Inverter DC Negative Busbar must be removed).

Inverter’s DC Positive Connection -

10A) Top of Inverter DC Positive Busbar; connects to Magnum inverter’s DC positive

terminal.

10B) Top of Inverter DC Disconnect; connects to non-Magnum inverter’s DC positive

terminal (the Inverter DC Positive Busbar must be removed).

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 A-2 in Appendix A information on installing and

wiring the ME-BMK-NS battery monitor inside the MMP enclosure.

Battery Negative Connection - The bottom of the DC Shunt is the connection point to

the negative terminal of the battery bank.