Magnum Energy MS-PAE Series User manual

MS-PAE Series
Pure Sine Wave
Inverter / Charger
Owner’s Manual
TM

Disclaimer of Liability
Since the use of this manual and the conditions or methods of installation, operation, use and
maintenance of the MS-PAE Series Inverter/Charger is beyond the control of Magnum Energy Inc.,
this company does not assume responsibility and expressly disclaims liability for loss, damage or
expense, whether direct, indirect, consequential or incidental, arising out of or anyway connected
with such installation, operation, use, or maintenance.
Due to continuous improvements and product updates, the images shown in this manual may not
exactly match the unit purchased.
Restrictions on Use
The MS-PAE Series Inverter/Charger shall not be used in connection with life support systems,
life saving or other medical equipment or devices. Using the MS-PAE Series Inverter/Charger with
this particular equipment is at your own risk.
Contact Information
Magnum Energy, Inc.
2211 West Casino Rd.
Everett, WA 98204
Phone: [phone]
Fax: [phone]
Web: www.magnumenergy.com
Record the unit’s model and serial number in case you need to provide this in-
formation in the future. It is much easier to record this information now, instead
of trying to gather it after the unit has been installed.
Model: Serial Number:
MS3748PAEJ AH
MS4024PAE AA
MS4448PAE AB

© 2009 Magnum Energy Inc.Page ii
IMPORTANT SAFETY INSTRUCTIONS
This manual contains important safety instructions that must be followed during the installa-
tion and operation of this product.
All electrical work must be performed in accordance with local, state and federal electrical
codes.
Read all instructions and safety information contained in this manual before installing or using
this product.
This product is designed for indoor / compartment installation. It must not be exposed to rain,
snow, moisture or liquids of any type.
Use insulated tools to reduce the chance of electrical shock or accidental short circuits.
Remove all jewelry such as rings, watches, bracelets, etc., when installing or performing
maintenance on the inverter.
Always disconnect the batteries or energy source prior to installing or performing maintenance
on the inverter.
Live power may be present at more than one point since an inverter utilizes both batteries and
AC.
Always verify proper wiring prior to starting the inverter.
There are no user serviceable parts contained in this product.
This unit is provided with integral protection against overloads.
The input and output AC and DC circuits are isolated from the inverter chassis. The inverter
system grounding is the responsibility of the installer in accordance with the NEC.
Both AC and DC overcurrent protection must be provided as part of the installation.
Class 1 wiring methods are to be used for field wiring connections to terminals of a Class 2
circuit.
Use only copper wires with a minimum temperature rating of 90°C.
Safety Symbols
To reduce the risk of electrical shock, fire, or other safety hazard, the following safety symbols have
been placed throughout this manual to indicate dangerous and important safety instructions.
WARNING: This symbol indicates that failure to take a specified action could result in
physical harm to the user.
CAUTION: This symbol indicates that failure to take a specified action could result in
damage to the equipment.
Info: This symbol indicates information that emphasizes or supplements important
points of the main text.
Remedy: This symbol provides possible solutions for related issues.
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Page iii © 2009 Magnum Energy Inc.
IMPORTANT BATTERY SAFETY INSTRUCTIONS
Wear eye protection such as safety glasses when working with batteries.
Remove all jewelry such as rings, watches, bracelets, etc., when installing or performing
maintenance on the inverter.
Never work alone. Always have someone near you when working around batteries.
Use proper lifting techniques when working with batteries.
Never use old or untested batteries. Check each battery’s label for age, type and date code to
ensure all batteries are identical.
Batteries are sensitive to changes in temperature. Always install batteries in a stable environ-
ment.
Install batteries in a well ventilated area. Batteries can produce explosive gasses. For compart-
ment or enclosure installations, always vent batteries to the outside.
Provide at least one inch of air space between batteries to provide optimum cooling.
Never smoke when in the vicinity of batteries.
To prevent a spark at the battery and reduce the chance of explosion, always connect the
cables to the batteries first. Then connect the cables to the inverter.
Use insulated tools at all times.
Always verify proper polarity and voltage before connecting the batteries to the inverter.
To reduce the chance of fire or explosion, do not short-circuit the batteries.
In the even of accidental exposure to battery acid, wash thoroughly with soap and water. In
the even of exposure to the eyes, flood them for at least 15 minutes with running water and
seek immediate medical attention.
Recycle old batteries.
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© 2009 Magnum Energy Inc.Page iv
Table of Contents
Introduction
1.0 Introduction.......................................................................................................... 1
1.1 Features and Benefits............................................................................................. 3
1.2 How the MS-PAE Series Inverter/Charger Works ........................................................ 5
Installation
2.0 Installation ........................................................................................................... 6
2.1 Pre-Installation ..................................................................................................... 6
2.2 Grounding Inverters..............................................................................................12
2.3 DC Wiring............................................................................................................16
2.4 AC Wiring ............................................................................................................22
2.5 Inverter Warning Label..........................................................................................26
2.6 Functional Test .....................................................................................................27
Operation
3.0 Operation ............................................................................................................28
3.1 Inverter Mode ......................................................................................................28
3.2 Standby Mode ......................................................................................................29
3.3 Battery Temperature Sensor Operation ....................................................................31
3.4 Protection Circuitry Operation.................................................................................32
3.5 Start-Up..............................................................................................................33
3.6 Factory Default Values...........................................................................................34
Troubleshooting
4.0 Troubleshooting....................................................................................................35
4.1 Performing an Inverter Reset .................................................................................36
Parallel Operation
5.0 Parallel Operation .................................................................................................37
5.1 Overview.............................................................................................................37
5.2 Conditions for Parallel Operation .............................................................................37
5.3 Parallel System Connections and Components ..........................................................39
Appendix
Specifications
A.1 Specifications.......................................................................................................40
A.2 Efficiency Graphs..................................................................................................41
Optional Equipment/Accessories
B.1 Optional Equipment/Accessories .............................................................................42
Battery Information
C.1 General Battery Information ..................................................................................43
C.2 Battery Bank Sizing Worksheet...............................................................................44
C.3 Battery Wiring .....................................................................................................45
Warranty and Service
D.1 Limited Warranty..................................................................................................48
D.2 How to Receive Repair Service ...............................................................................48

Page v © 2009 Magnum Energy Inc.
Table of Tables
Table 2-1, AC Grounding Electrode Conductor Sizing .........................................................13
Table 2-2, Equipment Grounding Conductor Sizing ............................................................15
Table 2-3, Recommended DC Wire/Overcurrent Device ......................................................18
Table 2-4, DC Wire Size For Increased Distance ................................................................19
Table 3-1, Inverter Battery Turn On/Off Levels..................................................................32
Table 3-2, Inverter/Charger Default Values ......................................................................34
Table 4-1, Troubleshooting Guide ....................................................................................35
Table A-1, MS-PAE Specifications ....................................................................................40
Table C-1, Typical Appliance Power Consumption...............................................................43
Table of Figures
Figure 1-1, Power Switch, Status LED and Accessory Connection Ports.................................. 2
Figure 1-2, Electrical Connection Points ............................................................................ 2
Figure 1-3, Left Side Features ......................................................................................... 4
Figure 2-1, Simplified Installation Diagram - Single Inverter................................................ 7
Figure 2-2, Approved Mounting Positions .......................................................................... 9
Figure 2-3, MS-PAE Series Dimensions ............................................................................10
Figure 2-4, Grounding System for MS-PAE Series..............................................................12
Figure 2-5, Multiple Connections to DC Ground Rod (Method 1) ..........................................13
Figure 2-6, Multiple Connections to DC Ground Rod (Method 2) ..........................................14
Figure 2-7, Single Connection to DC Ground Rod (Method 3) ..............................................14
Figure 2-8, DC and Battery Temperature Sensor Wiring .....................................................17
Figure 2-9, Battery Hardware Installation ........................................................................19
Figure 2-10, Inverter DC Hardware Installation.................................................................19
Figure 2-11, Battery Temperature Sensor ........................................................................20
Figure 2-12, AC Terminal Block ......................................................................................23
Figure 2-13, AC Wiring ..................................................................................................24
Figure 2-14, Warning Label ............................................................................................26
Figure 2-15, AC Voltage Checks......................................................................................27
Figure 3-1, Power Flow - Inverter Mode ...........................................................................28
Figure 3-2, Power Flow - Standby Mode...........................................................................29
Figure 3-3, Automatic 4-Stage Charging Graph.................................................................30
Figure 3-4, BTS Temperature to Charge Voltage Change ....................................................31
Figure 3-5, Power Switch and Status Indicator..................................................................33
Figure 4-1, Performing an Inverter Reset .........................................................................36
Figure 5-1, Simplified Installation Diagram - Multiple Inverters (stacked in parallel)...............38
Figure 5-2, Simplified Magnum Panel (AC Panel)...............................................................39
Figure 5-3, Simplified Magnum Panel (DC Panel)...............................................................39
Figure A-1, MS4024PAE Efficiency Graph .........................................................................41
Figure A-2, MS4448PAE Efficiency Graph .........................................................................41
Figure C-1, Series Battery Wiring....................................................................................45
Figure C-2, Parallel Battery Wiring ..................................................................................45
Figure C-3, Series-Parallel Battery Wiring.........................................................................45
Figure C-4, Battery Bank Wiring Examples (24-volt) ..........................................................46
Figure C-5, Battery Bank Wiring Examples (48-volt) ..........................................................47

Page 1
© 2009 Magnum Energy Inc.
1.0 Introduction
Congratulations on your purchase of the MS-PAE Series inverter/charger from Magnum Energy.
The MS-PAE Series is a “pure” sine wave inverter designed to provide 120 and 240VAC in a single
unit to power loads when inverting and also while charging. It has two 120VAC lines (L1 and L2), a
neutral and a ground. The two 120VAC output lines are 180° out-of-phase with each other, so that
the combination of the L1 and L2 lines total 240VAC and the voltage between either L1 or L2 and
neutral is 120VAC. The MS-PAE Series charger can accept 120VAC input (to L1 or L2) or 120/240
VAC split-phase input power (to L1 and L2), the incoming AC power is shared with the charger and
the output continues to be 120/240VAC with either a 120VAC or a 120/240VAC input.
When the power requirements of the system are beyond the capacity of a single MS-PAE Series
inverter or the system is expanded as more loads are added, up to four MS-PAE Series inverters
can be connected together in a parallel configuration. Connecting inverters in parallel increases the
overall inverter power and surge capacity to power a large single load or several smaller loads.
Simply connect the inverter’s output to your distribution circuits or electrical panel; connect your
utility or generator power (AC) to the inverter’s easy-to-reach terminal block; connect the batter-
ies, and then switch on the power. Using optional remote controls (ME-RTR. ME-ARC or ME-RC),
you can easily operate and monitor your inverter from a remote location.
The MS-PAE Series Inverter/Charger includes the following:
• High wattage output in a small footprint - less weight and area needed for install.
• Ability to parallel up to four identical MS-PAE inverters to increase output power capability
(requires ME-RTR).
Pure sine wave output (<5% THD).
• 120/240 VAC Split phase output in a single inverter.
• PFC (Power Factor Corrected) multi-stage battery charger.
• RS485 standard communication protocol.
• Remote and Network ports (easy connection for optional accessories).
• ON/OFF Inverter-mounted switch with LED indicator.
• Large AC access and terminal block [wire size: #18 to #2 AWG (0.82 to 33.6 mm2) CU].
• DC terminal covers with 360 degree connection.
• Battery Temperature Sensor - for optimum charging during extreme temperature changes.
• Field Serviceable for qualified personnel - tested repair kits available.
• Smooth, aesthetically pleasing design.
• MS4024PAE and MS4448PAE are ETL listed to UL/cUL STD 1741 and CSA STD 22.2 107.01-
01 for safety.
The following accessories are also available for MS-PAE Series products:
ME-RTR (Router Control Panel) - uses a four-line LCD display to provide operating infor-
mation and setup/troubleshooting capabilities for multiple Magnum inverters. Provides four
ports that allow MS-PAE models to be connected in a parallel configuration to increase output
power capacity.
ME-ARC (Advanced Remote Control Panel) - uses a two-line LCD display to allow advance
inverter setup, control and troubleshooting.
ME-RC (Standard Remote Control Panel) - uses two-line LCD display to allow standard
inverter setup, control and troubleshooting.
ME-AGS-N (Automatic Generator Start Module/Network version) - automatically starts/
stops your generator.
ME-BMK (Battery Monitor Kit) - provides precise DC voltage/current measurements and
provides information on your battery’s State of Charge (SOC) condition.
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Introduction

© 2009 Magnum Energy IncPage 2
Figure 1-1, Power Switch, Status LED and Accessory Connection Ports
Figure 1-2, Electrical Connection Points
Introduction
8
12
11
10
7
9
1
2
3
4
5
6
POWER ON/OFF SWITCH
STATUS (CHARGING/INVERTING) LED
PARALLEL STACK PORT
(RED LABEL - RJ45 CONNECTION)
NETWORK PORT
(GREEN LABEL - RJ11 CONNECTION)
REMOTE PORT
(BLUE LABEL - RJ11 CONNECTION)
BATTERY TEMPERATURE SENSOR PORT
(YELLOW LABEL - RJ11 CONNECTION)
POSITIVE (+) DC
TERMINAL
NEGATIVE (-) DC
TERMINAL
MOUNTING
FLANGE
DC EQUIPMENT
GROUND
TERMINAL
AC ENTRY/EXIT
CONNECTIONS
INTAKE AIR VENTS
(AND ON RIGHT SIDE)

Page 3
© 2009 Magnum Energy Inc.
1.1 Features and Benefits
The MS-PAE Series inverter/charger is designed to allow easy access to wiring, circuit breakers,
controls and for viewing the LED (Light Emitting Diode) status indicator. Its die cast base-plate
with one piece aluminum cover ensures maximum durability with minimum weight, as well as
cooler more efficient operation.
The front of the MS-PAE Series is equipped with the following features (refer to figures 1-1 and
1-2):
1Power Switch - a momentary push-button switch that alternately turns the inverter On
or Off.
2Status LED Indicator - this green LED illuminates to provide information on the in-
verter or charger operation.
3Parallel Stack Connection Port (red label) - a RJ45 port that connects to the ME-RTR
Router, which is used to configure and synchronize multiple MS-PAE units to operate in
parallel for increase power capacity.
CAUTION: Connect this Parallel Stack Port connection only to the ME-RTR.
Although the cabling and connectors used in this network system are the same as
Ethernet connectors, this network is not an Ethernet system. Attempting to connect
these two different systems may cause damage and is not covered under warranty.
Info: The MS-PAE Series Inverters cannot not be connected in parallel without in-
stalling the optional ME-RTR.
4Magnum Net Connection Port (green label) - a RJ11 port that accepts optional Net-
work capable accessories (i.e. Auto Gen Start or Battery Monitor).
5Remote Connection Port (blue label) - a RJ11 port that allows optional remote control
displays (i.e. ME-RC, ME-ARC, ME-RTR) to be connected.
6BTS Connection Port (yellow label) - RJ11 port that accepts the remote Battery Tem-
perature Sensor (BTS) accessory.
7DC Equipment Ground Terminal - this connection is used to tie the exposed chassis of
the inverter to the DC grounding system. This terminal accepts CU/AL conductors from
#14 to #2 AWG (2.1 to 33.6 mm2).
8AC Entry/Exit Connections - two 3/4” knockouts provided with cable-clamp strain reliefs
to allow and hold the AC input and output field wiring.
9Intake Air Vents - ventilation openings to pull in air to help keep the inverter cool for
peak performance.
10 Positive DC Terminal - provides 360 degree connection point for the positive (+) cable
from the battery bank; provided with a 5/16-18 stainless Kep or Flange nut on a 5/16-18
bolt (5/8” usable length) to hold the battery cable to the DC terminal which uses.
11 Negative DC Terminal - provides 360 degree connection point for the negative (-) cable
from the battery bank; provided with a 5/16-18 stainless Kep or Flange nut on a 5/16-18
bolt (5/8” usable length) to hold the battery cable to the DC terminal.
12 Mounting Flange - used to secure the inverter to a shelf or wall.
Introduction

© 2009 Magnum Energy IncPage 4
Introduction
16
14
15
13
Figure 1-3, Left Side Features
The left side of the MS-PAE Series is equipped with the following features (refer to figure 1-3):
13 Exhaust Air Vent - ventilation openings that allows heated air to be removed by the
internal cooling fan.
14 Model/Serial Number Label - includes model/serial number information, date of
manufacture and inverter and charger specifications. See the MS-PAE Specifications
in Appendix A for more information and the different models available.
15 AC Access Cover - provides access to the internal AC wiring terminal block. This terminal
block is used to hardwire all inverter AC input and output wiring connections. Remove the
two screws to access the AC wiring terminal block.
16 Input circuit breakers - these circuit breakers protect the unit’s internal wiring and
pass-thru relay on each input (L1 and L2) while in the standby mode. These input circuit
breakers are not branch-circuit rated. These circuit breakers pop out when they open,
press in to reset power capacity.
CAUTION: Circuit breakers that branch-circuit rated must be installed in the invert-
er’s input and output wiring.
CAUTION: The inverter’s internal AC transfer relay is rated for 30 amps per leg, the
pass-thru current must be no greater than 30 amps per leg or damage to the relays
may occur.
AC ACCESS
COVER
MODEL/SERIAL
NUMBER LABEL
EXHAUST
AIR VENTS
(BACK SIDE)
INPUT CIRCUIT BREAKERS

Page 5
© 2009 Magnum Energy Inc.
1.2 How the MS-PAE Series Inverter/Charger Works
The MS-PAE Series is an electronic device that takes DC (Direct Current) voltage from your bat-
teries and turns it into both 120V and 240V AC (Alternating Current) voltage, which is needed
to power your household electrical appliances (i.e. AC loads). The MS-PAE Series also includes
a battery charger circuit that takes AC power (when connected to utility/generator power) and
transforms it into DC power to recharge your batteries.
1.2.1 Inverter Applications
An inverter can be used for backup power in a home or office that normally uses utility power.
When the utility power is available, the inverter keeps the batteries charged. When the utility power
fails, the inverter comes on automatically to supply AC power to your home or office during the
power failure. For a home or business, reliable back-up power is used to prevent lost computer
data or to maintain lights and keep food fresh in the refrigerator/freezer.
In some areas, where utility power is not available, this inverter can be used in an stand-alone
renewable power system. The inverter allows AC electrical appliances to be run from the storage
battery bank. When the battery bank becomes discharged, either renewable DC sources (solar,
wind or hydro power) can be used to recharge the batteries or a generator can be connected to
the inverter to power the system while the batteries recharge.
1.2.2 Advantages of a Pure Sine Wave Inverter
Today’s inverters come in two basic output waveforms: modified sine (which is actually a modified
square wave) and pure sine wave. Modified sine wave inverters approximate a pure sine wave-
form and will run most appliances and electronics without any problems. These inverters are less
expensive and, therefore, offer a viable alternative to more expensive pure sine inverters.
The MS-PAE Series provides a pure sine wave output, this waveform is equal to or, in many cases,
better than the grid power used in your home. Virtually any electronic device will operate from a
pure sine wave inverter. Motors run cooler, microwaves usually cook faster and clocks keep better
time just to name a few examples. Without compromising quality or performance, the MS-PAE
Series provides you with all of the advantages of a pure sine wave inverter at a much lower cost
than many in the market.
1.2.3 Appliances and Run Time
The MS-PAE Series inverter/charger can power a wide range of household appliances including
small motors, hair dryers, clocks and other electrical devices. As with any appliance using batteries
for power, there is a certain length of time that it can run - this is called “run time.” Actual run
time depends on several variables including the size and the type of appliance, the type of batter-
ies installed in your application, as well as the battery’s capacity and age. Other factors such as
the battery’s state of charge and temperature can also affect the length of time your appliances
can run. See the Battery Bank Sizing section in Appendix C, to determine the battery bank size
needed for you loads.
Appliances such as TVs, VCRs, stereos, computers, coffee pots, incandescent lights and toast-
ers can all be successfully powered by your inverter. Larger electrical appliances, however, such
as stoves, water heaters, etc., can quickly drain your batteries and are not recommended to be
powered by the inverter.
All electrical appliances are rated by the amount of power they consume. The rating is printed
on the product’s nameplate label, usually located on its chassis near the AC power cord. Even
though it is difficult to calculate exactly how long an inverter will run a particular appliance, the
best advice is trial and error. Your MS-PAE Series inverter has a built-in LBCO (Low Battery Cut
Out) safeguard that automatically protects your batteries from over discharge.
Info: For the MS-PAE Series inverter/charger to perform optimally, a minimum battery
bank of 200 AH is recommended for moderate loads (<1000W) and greater than 400
AH for heavy loads (≥1000W).
Introduction

© 2009 Magnum Energy IncPage 6
2.0 Installation
Before installing the inverter, read the entire installation section to determine how you are going
to install your MS-PAE inverter/Charger. The more thorough you plan in the beginning, the better
your inverter needs will be met.
Info: If you are installing multiple MS-PAE inverters in a parallel configuration, follow
all information in this section and refer to section 5.0 for specific parallel instructions.
Info: Installations should be performed by qualified personnel, such as a licensed or
certified electrician. It is the installer’s responsibility to determine which safety codes
apply and to ensure that all applicable installation requirements are followed.
CAUTION: Review the “Important Product Safety Information” on page ii and the
“Important Battery Safety Instructions” on page iii before any installation.
The simplified system diagrams shown in this manual are provided to assist you in planning and
designing your installation. They are not intended to over-ride or restrict any national or local
electrical codes. These diagrams should not be the determining factor as to whether the installa-
tion is compliant, that is the responsibility of the electrician and the on-site inspector.
CAUTION: The inverter is heavy. Use proper lifting techniques during installation to
prevent personal injury.
2.1 Pre-Installation
2.1.1 Unpacking and Inspection
Carefully remove the MS-PAE Series inverter from its shipping container and inspect all contents.
Verify the following items are included:
−The MS-PAE Inverter/Charger
−Red and black DC terminal covers with Phillips screws
−AC access cover with two Phillips screws
−Two 5/16” Kep or Flange nuts (installed on the DC terminals).
−Battery Temperature Sensor with 15 foot cable
−Warning Label
−MS-PAE Series Owner’s Manual.
If items appear to be missing or damaged, contact your authorized Magnum Energy dealer or
Magnum Energy.
If at all possible, keep your shipping box. It will help protect your inverter from damage if it ever
needs to be returned for service.
Save your proof-of-purchase as a record of your ownership; it will also be needed if the unit should
require in-warranty service.
Record the unit’s model and serial number in the front of this manual in case you need to provide
this information in the future. It is much easier to record this information now, instead of trying
to gather it after the unit has been installed.
2.1.2 Required Components and Materials
Installation
Tools Required:
Misc. screw drivers• 1/2” wrench• Wire strippers•
Drill and drill bits• Pliers• Pencil or Marker•
Multimeter• Level•
Hardware / Materials Required:
Conduit, strain-reliefs and appropriate fittings• Wire ties•
1/4” mounting bolts and lock washers (x4 minimum)• Electrical tape•

Page 7
© 2009 Magnum Energy Inc.
Figure 2-1, Simplified Installation Diagram - Single Inverter
BATTERY
BANK
120 /240 VAC
POWER TO
INVER TER
DC
DISCONNECT
BREAKER
MS-PAE
SERIES
INVERTER/
CHARGER
MAIN P ANEL
120/240VAC INVERTER POWER
(OR PASS-THRU POWER) TO SUB-PANEL
ME-BMK
Battery Monitor
with shunt
(Magnum
Accessory )
DC
SHUNT
AC
TRANSFER
SWITCH
GENERATOR P OWER
(120/240VAC OUTPUT)
UTILITY P OWER
(120/240VAC OUTPUT)
Flux Capa citor Gene ra tor
ON
OF F
ON
OFF
ON
OF F
ON
OFF
ON
OF F
ON
OFF
ON
OFF
ON
OF F
ON
OFF
ON
OFF
ON
OF F
ON
OF F
ON
OFF
BTS
ME-SBC
Sm art B attery
Combiner
(Magnum
Accessory)
ME-AGS-N
Auto Gen Start
Controller
(Magnum
Accessory)
ON
OF F
ON
OF F
ON
OFF
ON
OF F
ON
OF F
ON
OF F
ON
OF F
ON
OFF
240
VAC 120
VAC
120
VAC
SUB-PANEL
ON
OF F
ON
OFF
30A30A
SELECT
TECHAG S M ET ER SET UPSHO REINVERTER
CHARG ER
INV
CHG
FAULT
PWR
ON/OF F
ON/OF F
Remote Controls (Magnum Accessories )
ME-RC ME-ARC
Installation

© 2009 Magnum Energy IncPage 8
2.1.3 Locating the Inverter
Only install the inverter in a location that meets the following requirements:
Clean and Dry - The inverter should not be installed in an area that allows dust, fumes, insects or
rodents to enter or block the inverter’s ventilation openings. This area also must be free from any
risk of condensation, water or any other liquid that can enter or fall on the inverter. The inverter
uses stainless steel fasteners, plated copper buss-bars, a power-coated aluminum base and the
internal circuit boards are conformal coated all done to help fight the harmful effects of corrosive
environments. However, the life of the inverter is uncertain if used in these type of environments,
and inverter failure under these conditions is not covered under warranty.
Info: If the inverter is installed in an area where moisture may occur, we recommend
putting silicone dielectric grease compound into the RJ45/RJ11 electrical ports (items
3 - 6 as shown in figure 1-1). Before installing the accessory cables or if leaving any
ports open, squirt a liberal amount into each port. Silicone dielectric compound makes
an effective moisture barrier to help prevent corrosion.
Cool - The inverter should be protected from direct sun exposure or equipment that produces
extreme heat.
Info: The ambient temperature around the inverter must not exceed 77°F (25°C) to
meet power specifications.
Ventilation - In order for the inverter to provide full output power and avoid overtemperature
fault conditions; do not cover or block the inverters ventilation openings or install this inverter
in an area with limited airflow. The inverter uses two internal fans to provide forced air cooling,
these fans pull in air through the intake vents (see item 9 in figure 1-2) and blow out air through
the exhaust vents (see item 13 in figure 1-3). Allow at the minimum, an airspace clearance of 6”
at the intake and exhaust vents and 3” everywhere else to provide adequate ventilation.
If the inverter is installed in an enclosure, a fresh air intake opening must be provided directly to
the front side (intake vents) of the inverter and an exhaust opening on the back side (exhaust
vents) of the inverter. This will allow cool air from the outside to flow into the inverter and heated
air to exit from the inverter and out of the enclosure. When mounted in an enclosed compart-
ment, airflow must be at least 100 cfm in order to maintain no more than a 68°F (20°C) rise in
compartment temperature.
CAUTION: Do not install this inverter in a zero clearance compartment. Do not cover
or obstruct the ventilation openings - overheating may result.
Safe - Keep any flammable/combustible material (i.e. paper, cloth, plastic, etc.) that may be
ignited by heat, sparks or flames at a minimum distance of 2 feet away from the inverter. Do not
install this inverter in any area that contains extremely flammable liquids like gasoline or propane,
or in locations that require ignition-protected devices.
Close to the battery bank - As with any inverter, it should be located as close to the batteries as
possible. Long DC wires tend to loose efficiency and reduce the overall performance of an inverter.
However, the unit should not be installed in the same compartment as the batteries or mounted where
it will be exposed to gases produced by the batteries. These gases are corrosive and will damage
the inverter; also if these gases are not ventilated and if allowed to collect, they could ignite and
cause an explosion. The absolute maximum recommended battery cable length is 15 feet.
Accessible - Do not block access to the inverter’s remote control and accessory ports as well
as the inverter’s controls and status indicator. Also allow enough room to access the AC and DC
wiring terminals and connections, as they will need to be checked and tighten periodically. See
figure 2-3 for the MS-PAE Series inverter/charger dimensions.
Away from sensitive electronic equipment - High powered inverters can generate levels of RFI
(Radio Frequency Interference). Locate any electronic equipment susceptible to radio frequency
and electromagnetic interference as far away from the inverter as possible.
Installation

Page 9
© 2009 Magnum Energy Inc.
Installation
2.1.4 Mounting the Inverter
The inverter base can reach a temperature up to 90°C (194°F), and it is recommended that it should
be mounted on a noncombustible surface*. This surface and the mounting hardware must also be
capable of supporting at least twice the weight of the inverter. To meet regulatory requirements,
the MS-PAE Series must be mounted in one of the following positions; as shown in figure 2-2:
above or under a horizontal surface (shelf or table),
or on a vertical surface (wall) with the DC terminals to the right.
or on a vertical surface (wall) with the DC terminals toward the bottom with the MP-HOOD
(inverter hood) installed over the exhaust vents (top) and either the ME-CB (Conduit box), MMP
Series (single inverter enclosure), or MP Series (multiple inverter enclosure) is attached to the
inverter’s DC end (bottom).
Info: The ME-CB, MMP Series and MP Series enclosures prevent material from falling
out the bottom in the event of an internal fire and also allow sufficient ventilation to pre-
vent the inverter from overheating under normal operating conditions. The MP-HOOD
inverter hood helps prevent items from falling inside causing damage to the inverter.
Info: Magnum provides a backplate with a suitable surface for mounting the inverter.
These backplates also provide the ability to mount either the MMP Series enclosure (PN:
BP-MMP) or the MP Series Enclosure (PN: BP-S, Single Plate or BP-D, Dual Plate).
After determining the mounting position, refer to the physical dimensions as shown in figure 2-3
or use the base of the inverter as a template to mark your mounting screw locations. After mark-
ing the mounting screw locations, mount the unit with appropriate mounting hardware.
* Noncombustible surface - A surface made of material that will not ignite, burn, support combustion, or
release flammable vapors when subjected to fire or heat as per the ASTM E136 standard. For the most part,
these are materials that are largely comprised of inorganic materials such as stone, steel, iron, brick, tile
concrete, slate and glass. Common building materials such as gypsum board as well as any paint, wall cov-
•
•
•
Figure 2-2, Approved Mounting Positions
30
3030
SHELF OR TABLE MOUNTED
(RIGHT SIDE UP)
SHELF OR TABLE MOUNTED
(UPSIDE DOWN)
WALL MOUNTED
(DC TERMINALS TO THE RIGHT)
WALL MOUNTED
(DC TERMINALS
ON THE BOTTOM*)
*When the inverter is
mounted on the wall in
this position, the, inverter
hood (MP-HOOD) must be
mounted over the exhaust
vents (top); and either the
conduit box (ME-CB) or
MMP/MP Series enclosures
must be attached to the
inverter’s DC end (bottom).

© 2009 Magnum Energy IncPage 10
Figure 2-3, MS-PAE Series Dimensions
Installation
12 5/8"
12"
4 7/8"
2"
4 7/8"
Keyhole slots (x4)
and mounting
holes (x4) accept
up to 9/32"
screw/bolt
13 3/4"
8"
6 5/8"
BOTTOM
SIDE
RIGHT
SIDE
BACK
SIDE
RIGHT
SIDE
LEFT
SIDE
TOP
SIDE
LEFT
SIDE
TOP
SIDE
FRONT
SIDE

Page 11
© 2009 Magnum Energy Inc.
Installation
2.1.5 Wiring the Inverter
This section also describes the requirements and recommendations for wiring the MS-PAE Series
Inverter/Charger. Before wiring the MS-PAE Series inverter/charger, read all instructions.
All wiring should meet all local codes and standards and be performed by qualified per-
sonnel such as a licensed electrician.
The NEC (National Electric Code, ANSI/NFPA 70) for the United States and the CEC (Canadian
Electrical Code) for Canada provide the standards for safely wiring residential and commercial
installations. The NEC/CEC lists the requirement for wire sizes, overcurrent protection and instal-
lation methods and requirements.
Inverter/charger systems involve power from multiple sources (inverter, generator, utility, batter-
ies, solar arrays, etc.) which make the wiring more hazardous and challenging.
The input and output AC and DC circuits are isolated from the inverter chassis. The inverter system
grounding is the responsibility of the installer in accordance with the NEC.
WARNING: Ensure all sources of DC power (i.e. batteries, solar, wind or hydro) and
AC power (utility power or AC generator) are de-energized (i.e. breakers opened,
fuses removed) before proceeding - to prevent accidental shock.
2.1.6 Protecting Wire - Conduit Box or Inverter Enclosure
The AC and DC wires into and out of the inverter must be protected by rigid tubing, as required by
code to comply with residential and commercial installations. This is normally done by feeding the
wires through conduit. Magnum provides a DC conduit box (ME-CB), a single inverter enclosure
(MMP Series), or a multiple inverter enclosure (MP Series) that includes the necessary AC and DC
inverter breakers that can be purchased to allow both the AC and DC conduit to be connected to
the inverter.
2.1.7 Wiring Requirements
All conductors that are at risk to physical damage must be protected by conduit, tape, or
placed in a raceway.
Always check for existing electrical, plumbing or other areas of potential damage prior to mak-
ing cuts in structural surfaces or walls.
Both AC and DC overcurrent protection must be provided as part of the installation.
The inverter requires a reliable negative and ground return path directly to the battery.
Use only copper wires with a minimum temperature rating of 90°C.
2.1.8 Wire Routing
Before connecting any wires, determine all wire routes throughout the home to and from the in-
verter. Typical routing scenarios are:
AC input wiring from the main AC panel to the inverter
AC input wiring from a generator (optional) to the inverter
DC input wiring from the batteries to the inverter
AC output wiring from the inverter to the AC sub-panel or to dedicated circuits
Battery Temperature Sensor cable from the inverter to the batteries
Remote Control cable (optional) to the inverter
Ground wiring from the inverter to an external ground
2.1.9 Torque Requirements
Torque all AC wiring connections to 16 in lbf (1.8 Nm). Torque DC cable connections from 10 to
12 ft lbf (13.6 to 16.3 Nm).
•
•
•
•
•
•
•
•
•
•
•
•

© 2009 Magnum Energy IncPage 12
Figure 2-4, Grounding System for MS-PAE Series
2.2 Grounding Inverters
The MS-PAE Series inverters use two separate electrical systems (AC and DC power), therefore
each electrical system is required to be properly connected to a permanent, common “ground” or
“earth” reference. An inverter system that is properly grounded limits the risk of electrical shock,
reduces radio frequency noise and minimizes excessive surge voltages induced by lightning. To
understand how the conductors in the electrical circuit will be connected to the system ground,
the following terms should be understood (also refer to figure 2-4):
Grounded Conductor (GC): The wire/cable in the electrical system that normally carries current
(usually the AC neutral and/or the DC negative); and is intentionally connected or “bonded” to
the ground system. This wire or the ends of this wire should be colored white or gray.
Equipment Grounding Conductor (EGC): A wire/cable that does not normally carry current and
is used to connect the exposed metal parts of equipment - that might be accidentally energized
- to the grounding electrode system or the grounded conductor. This wire or the ends of this
wire should be green or green with a yellow stripe; or this wire can be bare copper.
Grounding Electrode Conductor (GEC): The wire/cable that does not normally carry current and
connects the grounded conductor and/or the equipment grounding conductor to the grounding
electrode at the service equipment.
Grounding Electrode (GE): A ground rod or conducting element that establishes an electrical
connection to the earth or common ground reference.
System bonding jumper (SBJ) The connection between the grounded circuit conductor in the
electrical system and the equipment grounding conductor at a separately derived system.
There are two types of grounding - equipment grounding and system grounding.
The exposed metal parts of the equipment in the system usually don’t carry electricity. However,
if the exposed metal becomes electrified by a live wire, a person touching this live part could
complete the electrical circuit and receive a shock. Equipment grounding prevents shock by con-
necting all the exposed metal parts of equipment (via Equipment Grounding Conductors - EGC)
together at a common ground point (Ground Bus-Bar - GBB). This common ground point - installed
in the service disconnect panel for each electrical system (AC and DC) - is then connected (via
Grounding Electrode Conductor - GEC) to the common ground reference, such as a ground rod
(Grounding Electrode - GE). This connection to earth is made at only one point in each electrical
system; otherwise, parallel paths will exist for the currents to flow. These parallel current paths
would represent a safety hazard and are not allowed in installations wired per the NEC/CEC.
System grounding takes one of the current-carrying conductors (Grounded Conductor - GC) and
attaches it to the common ground point (Ground Bus-Bar - GBB) usually by a System Bonding
Jumper (SBJ) in each electrical service disconnect panel. On the DC side that is the negative con-
ductor; on the AC side it’s the neutral conductor. The closer the grounding connection is to the
source, the better the protection from surges due to lightning.
•
•
•
•
•
AC
DC Service
Panel
AC Service
Panel
DC Electrical SystemAC Electrical System
Neutral
Positive
Negative
DC
Grounding
System
Negative
SBJ
GC
GE
GEC-AC
EGC
AC Ground DC Ground SBJ
EGC
GC
Neutral
Hot
GEC-DC
GE GE
GBB GBB
Grounding Electrode
(AC and DC sides shared) Grounding Electrode (DC side dedicated)
Grounding Electrode
(AC side dedicated)
or or
MS-PAE Series Inverter/Charger
Installation

Page 13
© 2009 Magnum Energy Inc.
2.2.1 Sizing the Grounding Electrode Conductors
AC Side - The size of the AC Grounding Electrode Conductor (GEC –AC) depends on the size of the
largest ungrounded conductor feeding the AC load center. A #8 AWG (8.4 mm2) copper conductor
will serve as an AC Grounding Electrode Conductor (GEC –AC) for AC power conductors smaller
than and including #2 AWG (33.6 mm2) copper. See Table 2-1 for additional values.
DC Side - To size the DC Grounding Electrode Conductor, you must first determine which one of the
following three methods will be used to connect the DC and AC grounding points in the inverter’s
two electrical systems to the common “earth” ground:
Method 1 (see figure 2-5): This method uses a separate Grounding Electrode for the DC system
and the AC system. In this method - since there are multiple connections to the DC Grounding
Electrode (GEC – DC) - the size of the DC Grounding Electrode Conductor cannot be smaller than
the largest conductor in the DC system (usually the battery-to-inverter cable).
The DC Grounding Electrode (GE – DC) must be bonded to the AC Grounding Electrode (GE – AC)
to make a grounding electrode system; this bonding conductor (BC) cannot be smaller than the
largest Grounding Electrode Conductor, either AC or DC.
Table 2-1, AC Grounding Electrode Conductor Sizing
Figure 2-5, Multiple Connections to DC Ground Rod (Method 1)
AC
DC Service
Panel
AC Service
Panel
DC Electrical SystemAC Electrical System
Neutral
Positive
Negative
DC
Grounding
System
Negative
SBJ
GC
GE
GEC-AC
EGC - AC
AC Ground DC Ground SBJ
EGC - DC
GC
Neutral
Hot
GEC-DC
GBB GBB
Grounding Electrode
(AC and DC sides shared)
MS-PAE Series Inverter/Charger
Size of Largest
Ungrounded Conductor
(Copper)
Minimum Size of
Grounding Electrode
Conductor (Copper)
2AWGorsmaller #8AWG
1or1/0AWG #6AWG
2/0or3/0AWG #4AWG
Over 3/0 AWG
through 350kcmil #2 AWG
AC Grounding Electrode Conductor Sizing
Installation

© 2009 Magnum Energy IncPage 14
Method 2 (see figure 2-6): When the AC and DC service panels are near each other, then the AC
Grounding Electrode Conductor (GEC – AC) and DC Grounding Electrode Conductor (GEC – DC)
can be connected to a single Grounding Electrode. In this method - since there are multiple con-
nections to the DC Grounding Electrode (GEC – DC) - the size of the DC Grounding Electrode
Conductor can not be smaller than the largest conductor in the DC system (usually the battery-
to-inverter cable).
Figure 2-6, Multiple Connections to DC Ground Rod (Method 2)
Figure 2-7, Single Connection to DC Ground Rod (Method 3)
Method 3 (see figure 2-7): The AC Grounding Electrode Conductor (GEC – AC) is bonded to the
DC ground point and the DC Grounding Electrode Conductor (GEC – DC) is the only connection to
the Grounding Electrode, which must be a rod, pipe, or plate electrode.
In this method, since there is only one connection to the ground rod, the DC Grounding Electrode
Conductor is not required to be larger than #6 AWG (13 mm2) copper. The reasoning for allowing
this smaller grounding electrode conductor is that it is only required to stabilize the system volt-
age with respect to earth and the other properly-sized conductors in each electrical system will
safely carry any fault currents if they occur.
Installation
AC
DC Service
Panel
AC Service
Panel
DC Electrical SystemAC Electrical System
Neutral
Positive
Negative
DC
Grounding
System
Negative
SBJ
GC
GE
GEC-AC
EGC - AC
AC Ground DC Ground SBJ
EGC - DC
GC
Neutral
Hot
GEC-DC
GBB GBB
Grounding Electrode
(AC and DC sides shared)
MS-PAE Series Inverter/Charger
AC
DC Service
Panel
AC Service
Panel
DC Electrical SystemAC Electrical System
Neutral
Positive
Negative
DC
Grounding
System
Negative
SBJ
GC
GEC-AC
EGC - AC
AC Ground DC Ground SBJ
EGC - DC
GC
Neutral
Hot
GEC-DC
GE
GBB GBB
Grounding Electrode
(DC side dedicated)
MS-PAE Series Inverter/Charger