©
2010 Magnum Energy, Inc
Page 21
Installation
2.5.3
Recommended GFCI (Ground Fault Circuit Interruption) Breakers
Some electrical safety codes require the use of GFCI’s. In compliance with UL standards, Magnum
Energy has tested the following GFCI’s and
fi
nd that they function properly when connected to
the inverter’s AC output:
Shock Sentry
TM
#XGF15V-SP
Leviton Smart Lock #8899-A
Hubbel #GF520EMBKA
2.5.4
AC Terminal Block Connections
The inverter has a six-pole AC terminal block and one AC ground terminal to connect the inverter’s
AC input and output wiring. To access and view the AC terminal block and ground terminal, remove
the two Phillips screws holding the AC Access Cover plate (see Figure 1-3, Item 15).
Each connection on the AC terminal block is rated to accept one #14 to #6 AWG (2.1 to 13.3 mm
2
)
CU stranded wire, or two #12 AWG (3.3 mm
2
) CU stranded wires. The connection uses a M3.5 slotted
head screw, and the maximum tightening torque is 16 in lbf (1.8 N-m).
Info:
One of the AC wiring con
fi
gurations [SI/SO (60A), Figure 2-12] uses a #6 AWG
(13.3 mm
2
) CU wire to carry 60 amps, and splits to two wires to allow 30 amps for
each leg (i.e., AC HOT1 and AC HOT2). IDEAL Industries Inc. (www.idealindustries.
com) manufactures a crimp connector (PN: 412) and a separate insulator (PN: 417)
that allow up to two #8 AWG (8.4 mm
2
) wires, with one #6 AWG (13 mm
2
) wire to be
connected together.
Info
: For alternative energy installations and to comply with standard safety
requirements, the six-pole AC terminal is provided with a stainless steel wire protector
to prevent wire damage from the set-screw.
Info
: The inverter’s NEUT IN and NEUT OUT terminals are connected together
internally.
The AC ground terminal can accept one #14 to #6 AWG (2.1 to 13 mm
2
) CU stranded wire. It uses
a slotted head screw and has a recommended maximum tightening torque of 45 in lbf (5.1 N-m).
For multiple ground wires, use a pressure or mechanical connector to attach the single wire from
the AC ground terminal to the input and output ground connections.
Figure 2-10, AC Terminal Block
AC GROUND
(In & Out)
NEUT IN
HOT 1 IN
HOT 2 IN
HOT 1 OUT
HOT 2 OUT
NEUT OUT
