Magnum Energy MS-PE Series - Manual (Page 27)

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©
2013 Magnum Energy, Inc.
Installation
2.5.4 AC Conductor Wiring
The following steps are basic guidelines for installing and connecting the AC wiring into and out
of the inverter.
WARNING: Before making any AC connections, make sure the inverter is disconnected
from the battery and there is no other source of live power connected to the inverter.
Remove the two Phillips screws on the AC wiring access cover (see Figure 1-3, Item 15) to access
the internal AC terminal block (see Figure 2-8).
Wiring the Inverter AC Input
1. Route the wires (HOT1, NEUTRAL1, and GROUND1) from the AC electrical main panel through
one of the strain relief clamps on the inverter (Figure 1-2, Item 8). Tighten the strain relief
clamp securely on the cables. Always leave a little extra slack in the wiring. Refer to Figure 2-9.
2. Connect the HOT1 wire (brown) from the main panel’s dedicated breaker to the inverter’s HOT
IN terminal. Note: Do not tighten wires until after the AC wiring inspection below.
3. Connect the NEUTRAL1 wire (blue) from the main panel’s neutral busbar to the inverter’s NEUT
IN terminal.
Wiring the Inverter AC Output
1. Route the wires (HOT2, NEUTRAL2, GROUND2) from the AC electrical sub-panel through the
unused strain relief clamp on the inverter (Figure 1-2, Item 8). Tighten the strain relief clamp
securely on the cables. Leave a little extra slack in the wiring.
2. Connect the HOT2 wire (brown) from the sub-panel’s main breaker to the inverter’s HOT OUT
terminal.
3. Connect the NEUTRAL2 wire (blue) from the sub-panel’s neutral busbar to the inverter’s NEUT
OUT terminal.
Combining the AC Grounds
1. Combine the GROUND1 wire (green w/yellow stripe) from the main panel’s ground busbar and
the GROUND2 wire (green w/yellow stripe) wire from the sub-panel’s ground busbar. After
these grounds are combined, connect them to the inverter’s AC GROUND terminal.
AC Wiring Inspection
1. Verify all cable runs are secured. If installed in a mobile installation, use wire ties or other
non-conductive fasteners to prevent chafi ng or damage from movement and vibration.
2. Verify strain reliefs or grommets are in place to prevent damage to the wiring or conduit where
it passes through walls/bulkheads or other openings.
3. After verifying all AC connections are correct, torque all inverter AC terminal screws to 1.8
N-m (16 in lbf), and then torque the inverter’s ground terminal screw to 5.1 N-m (45 in lbf).
4. Replace the AC wiring access cover and the covers on the electrical/distribution panels.
2.5.5 AC Wiring Confi guration
The wiring confi guration for installing and connecting the AC conductors into and out of the inverters
(MS4124PE & MS4348PE models) requires an AC source 1 of 230VAC @ < 30 amps. The maximum
input breaker required is 30A (single pole), and the minimum wire size is 5.3 mm 2 /#10 AWG (In
& Out). Refer to the wiring diagram in Figure 2-9.
Note 1 – AC Source is from either the utility/grid power (i.e., shorepower) or an AC generator.