Magnum Energy MS-PAE Series Owner's Manual page 31

2.4.5 Wiring the AC Input and Output
The MS-PAE series provides 120/240VAC on the output, but the input may be wired either as a
120/240VAC input or a 120VAC input (to one input only) depending on your AC source. The AC output
will continue to produce 120/240VAC with either the 120/240VAC or 120VAC input confi guration.
WARNING: DO NOT connect 120VAC (same phase) to both AC HOT 1 IN and AC HOT 2
IN inputs. These inputs must be 180° out-of-phase (i.e. 120/240VAC). If you only have a
120VAC source, you may connect to either the AC HOT 1 IN or AC HOT 2 IN, but NOT to
both or damage may occur.
WARNING: Before making any AC connections, make sure that the inverter is dis-
connected from the battery bank and also all AC power is disconnected from the in-
verter.
CAUTION: The inverter's AC output must never be connected to an AC power source.
This could cause severe damage to the inverter and is not covered under warranty.
Info: Torque all AC screw terminals to 16 in lbf (1.8 Nm).
The following steps are a basic guideline for installation and connection of the AC wiring into and
out of the inverter (refer to fi gure 2-13 for the AC wiring installation)
1. Remove the two Phillips screws on the AC wiring compartment cover (item 15 in fi gure 1-3) to
access the internal AC terminal block.
2. If installing an optional enclosure [i.e. ME-CB (Conduit box), MMP Series (single inverter en-
closure), or MP Series (multiple inverter enclosure)] to the bottom of the inverter, ensure the
knockout(s) that will be used for the conduit are removed. Fasten the conduit to the enclosure
using appropriate conduit connectors. Feed all AC wiring through the enclosure and into the in-
verter AC terminal block; be sure to leave several extra inches of wire to work with. At least two
sets of conductor wiring will be needed, one from the AC source (or Main Panel) to the inverter
input and another from the inverter output to the sub-panel.
Wiring the Inverter AC Input (from the main panel)
3. a. For a 120/240VAC input: From the main panel's dedicated dual-pole circuit breaker, connect
the hot 1 wire (black) to the "AC HOT 1 IN" terminal and the hot 2 wire (red) to the "AC HOT 2
IN" terminal.
b. For a 120VAC input: From the main panel's dedicated single-pole circuit breaker, connect the hot
wire (black) to the "AC HOT 1 IN" or AC HOT 2 IN" terminal, but NOT both or damage may occur.
4. Connect the neutral (white) wire from the main panel's neutral bus bar to one of the "AC NEU-
TRAL" terminals (both "AC NEUTRAL" terminals are common to each other).
5. Connect the safety ground (green) wire from the main panel's ground bus bar to one of the
"AC GROUND" terminals.
Wiring the Inverter AC Output (to the sub-panel)
6. Connect the hot 1 (black) wire to the "AC HOT 1 OUT" terminal and the hot 2 (red) wire to the
"AC HOT 2 OUT" terminal.
7. Connect the neutral (white) wire to the open "AC NEUTRAL" terminal.
8. Connect the ground (green) wire to the open "AC GROUND" terminal.
9. After making the AC output connections, route the outgoing AC wires to the appropriate bus-
bars in an AC load panel equipped with branch-rated circuit breakers (i.e. sub-panel).
Final Inspection
Gently pull on the wires to ensure they are securely held and ensure no bare wire is exposed.
The AC input and output wiring in the inverter should be complete, prior to reattaching the AC
access cover, review all AC wiring to ensure all connections are correct and secure.
© 2009 Magnum Energy Inc.
Installation
Page 25