Magnum Energy Magnum Panel (MP Series) - Manual (Page 18)

© 2011 Magnum Energy, Inc. Page 11
2.0 Introduction
Inverter AC Input Breakers - These breakers provide protection to the inverter’s AC input
circuit, a way to disconnect the AC input to the inverters, and overcurrent protection to the
inverter’s input wires when the minimum recommended AC wire sizes are used. Depending on
your MP model, the breaker provided for the inverter input will be either a double-pole 30 amp
(D30A) or a single-pole 60 amp (S60A) AC breaker.
The double-pole 30 amp AC breaker is provided on the MPSL-30D, MPSH-30D, and MPDH-30D
models to allow 120/240V AC inverters — up to 30 AC amps per leg pass-thru capability — to be
connected. The MPSL-30D and MPSH-30D come with one double-pole 30A input breaker and the
MPDH-30D comes with two double-pole 30A breakers. These three models require a double-pole
30A breaker for each additional inverter installed in a parallel-stacked confi guration.
The single 60 amp AC breaker is provided on the MPSL-60S models to allow 120V AC inverters
— up to 60 AC amps pass-thru capability — to be connected. If connecting MS4024’s in a
series-stacked confi guration, an additional single pole 60A breaker for the second MS4024 will
be required (as provided in the MPX extension kit).
Inverter Bypass Breaker Assembly - The Inverter AC Bypass Breaker Assembly is pre-wired
at the factory and consists of the inverter bypass switch and the inverter AC output disconnect
breaker. This breaker assembly provides a way to disconnect the AC output of the inverter
system, and to directly connect the AC input to the AC output by bypassing the inverter system.
The MPSL-30D and MPSL-60S are installed with a double-pole 60-amp AC bypass breaker
assembly, and the MPSL-30D and MPDH-30D are equipped with a double-pole 125-amp AC
bypass breaker assembly.
Inverter DC Disconnect Breaker - This 250 amp DC disconnect is a high interruption capacity,
magnetic-hydraulic, DC circuit breaker. These breakers were specifi cally designed and tested
to work with Magnum inverters to provide the delay time needed to minimize nuisance breaker
tripping. It provides an easy and convenient way to isolate the inverter from the battery, and
meets the NEC/CEC requirements for DC overcurrent protection when the size and length of the
battery-to-inverter cables are installed in accordance with the installation instructions in this
manual. These breakers have front-accessible connections, each provided with 3/8-16 Hex head
bolts with lock washers.
Inverter’s DC Negative Connection - Connects to Magnum inverter’s DC negative terminal.
Inverter’s DC Positive Connection - Connects to Magnum inverter’s DC positive terminal.
Mounting Dimples, BMK (x2) - These dimples allow the optional ME-BMK-NS (Battery Monitor
Kit without DC shunt) to be installed. Two #8-32 x 1/2” (T20 Torx drive) thread cutting screws
are provided to mount the battery monitor. See Section A2 for more information on mounting
the battery monitor.
Mounting Holes, Inv AC Input Breakers - Used to install additional Inverter AC Input
Breakers, which provide protection to each inverter’s AC input circuit.
Mounting Holes, Inv DC Backmount Breakers - For installing 1” (25.4mm) wide, back-
mounted, E-Frame type, DC breakers. These breakers can be used for connecting DC loads or
installing a PV-GFP device.
Mounting Holes, Inv DC Disconnect Breakers - Used to install additional Inverter DC
Disconnect Breakers, which isolate the inverter from the battery. These breakers meet the NEC/
CEC requirements for DC overcurrent protection when used in accordance with the installation
instructions in this manual.
Mounting Keyholes, MP Enclosure (x4) - Four keyholes for mounting the enclosure. See
Figures 3-5 or 3-6 for size information on these keyholes.